Online Publication Catalog


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College publications are given 2-part "pub numbers" that are used to identify them. The first part (the prefix) is a set of letters that indicates which series the document belongs to. A series is a grouping of documents that share similar content. The second part of the pub number is just a sequential number.

In descending order, by date published.

 


 

Agricultural Engineering


AEN-151

Lanes for Beef Cattle Operations

5/14/2020 (new)
Authors: Steve Higgins

The benefits of lanes can be applied to pasture-based Kentucky cattle operations of any size. Lanes can be used to move cattle from pasture to pasture, and to access structures or barns, handling facilities, load-out areas, and areas with shade.

Departments: Agricultural Economics, Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags: beef cattle, equipment and structures, livestock
Size: 2.89 mb
Pages: 2



AEN-150

Understanding Soil Mechanics to Improve Beef Cattle Winter-Feeding Areas and Production

5/14/2020 (new)
Authors: Morgan Hayes, Steve Higgins

Understanding soil mechanics and management in winter-feeding areas could improve beef cattle production, with less effort on the producer and cattle. This publication is intended to guide evaluating soil strength for winter-feeding areas, the pollution potential of winter-feeding areas, and to provide solutions for correcting structural deficiencies and reducing mud on both the ground and on the cattle.

Departments: Agricultural Economics, Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags: beef cattle, livestock, soil and land
Size: 93 kb
Pages: 2



AEN-149

Heat Stress in Goats

3/30/2020 (new)
Authors: Morgan Hayes, Katie Jackson, Joe Taraba

Heat stress is prevalent in most livestock species, but especially in dairy animals where large quantities of energy are necessary to sustain milk production. Both dairy goats in lactation and meat goats, which are being fed for growth, are susceptible to heat stress. Knowing the physiological signs to observe (like panting or excessive drinking) can make heat stress more apparent.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags: livestock, nutrition and health
Size: 159 kb
Pages: 3



AEN-148

Considerations in Goat Barn Design

3/30/2020 (new)
Authors: Morgan Hayes, Katie Jackson, Joe Taraba

Farmers who raise goats for meat or milk need guidance in the interrelated tasks of choosing a barn design and managing temperatures for their herd. Barn orientation, ventilation design, and stocking density are all important considerations which impact goats socially and physiologically, potentially impacting production. While other species are relatively well studied in these areas, research on goats is somewhat limited. The goal of this publication is to provide recommendations drawn from research in goats and sufficiently similar species.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 175 kb
Pages: 5



AEN-146

UAV How-To: Create a Forage Canopy Model with Photogrammetry

3/9/2020 (new)
Authors: Joe Dvorak, Joshua Jackson, Cameron Minch, Tucker Sheffield

Unmanned aerial vehicles (UAVs) are quickly becoming more integrated into producers' on-farm operations. With the advent of this new technology, users must understand how to convert raw UAV data into an applicable medium. Often the goal of UAV flights is to create a map of the output from a certain type of sensor. Thompson et al. (2018) have defined a general mapping process independent of drone type, sensor type, and mapping software. However, general mapping is significantly different than trying to record a three-dimensional model of the plant canopy structure. This article expands upon the workflow and details the process for developing a canopy model of a crop.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 1.28 mb
Pages: 5



AEN-147

Structures for Beef Cattle

2/13/2020 (new)
Authors: Steve Higgins

Livestock housing, whether simple or sophisticated, must perform the required functions. It should meet the thermal and physical needs of the animal; it should provide a place to store and feed materials without damage or loss; it should increase the performance of cattle; and, it should allow the producer to conduct all chores associated with cattle production efficiently. A building can contribute to management efficiency and animal performance, which itself is defined by productivity, health and welfare. The building should create optimum environmental conditions for cattle by providing light, air flow, appropriate flooring, space, and ventilation.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 956 kb
Pages: 3



AEN-145

Designing or Reworking Your Cattle-handling Facilities: A Checklist for Success

2/3/2020 (new)
Authors: Morgan Hayes, Joshua Jackson

Cattle-handling facilities should be designed to match the management goals of the operation. The safety of workers and cattle should be the highest priority when designing or reworking a handling facility. A well-designed facility will make working cattle faster, safer, less labor intensive, and less frustrating.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 126 kb
Pages: 4



AEN-144

Four Beef Cattle Barn Flooring Options: A Case Study

11/21/2019 (new)
Authors: Steve Higgins

Barn floor design is critical to the physical and thermal comfort, health and safety of cattle. Generally speaking, barn flooring is the surface on which an animal stands, lies down, and excretes its urine and manure. Therefore, to meet animal needs, it must be durable, not slippery, and well drained, as well as comfortable, warm, and dry. In addition to providing animal comfort, the flooring should easily be cleaned. No single material, from concrete to soil, meets all of these specifications.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 3.55 mb
Pages: 3



AEN-143

Calf Areas, Pens or Pastures: A Case Study

11/11/2019 (new)
Authors: Steve Higgins

The creation of a creep pen or pasture area can be accomplished using various methods and materials. Using what is on hand and/or revitalizing an unused area of the farm that has infrastructure may reduce expenses. The cost of one fallen calf could pay for the implementation of the practice. This practice may benefit spring calves over fall calves, so that might be a consideration when choosing a time to plan construction of your creep area.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags: equipment and structures, livestock
Size: 1.25 mb
Pages: 3



AEN-142

Loose Housing for First-Calf Heifers: A Case Study

11/11/2019 (new)
Authors: Steve Higgins

The loose housing system increases the productivity of the replacement herd and the stockman by providing the optimum environment for production and management. While there is work in creating the system upfront, the design will reduce effort later by creating greater efficiency, flow, and movement of materials.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags: equipment and structures, livestock
Size: 1.94 mb
Pages: 4



AEN-134

Fenceline Feeder Systems for Beef Cattle Production and Resource Conservation

7/29/2019 (major revision)
Authors: Steve Higgins, Lee Moser

One of the most challenging and costly aspects of beef cattle production in Kentucky is winter-feeding. Many producers complain about the time required to feed stored forages, the mud, the drudgery that it creates for the operator, and the decline in production. The intense traffic associated with winter-feeding on unimproved surfaces causes mud, compaction, erosion, and loss of desirable vegetation, often resulting in annual pasture renovations to address areas impacted by winter-feeding practices. Fenceline feeding systems offer an alternative to traditional in-field bale feeding during the wet winter conditions that Kentucky often experiences. These structures can be utilized to reduce the impact of winter-feeding on pastures and improve the operational efficiency of a winter-feeding area.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags: beef cattle, equipment and structures, livestock, nutrition and health
Size: 2.55 mb
Pages: 13



AEN-141

Maps for Farm Planning

6/18/2019 (new)
Authors: Steve Higgins, Lee Moser

Planning and design are critical steps when modernizing a farm to meet the current and future operational needs. Farm renovations and redevelopment must always consider the cost/benefit of changes, while staying consistent with good agricultural practice guidelines that conserve labor and the resources of the farm. The process of developing a farm map will be used to guide producers on the concepts and considerations necessary to make decisions related to planning renovations and developing new infrastructure on the farm.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags: equipment and structures, production practices
Size: 1.32 mb
Pages: 4



AEN-140

Constructing a Platform Alley Scale System

6/17/2019 (new)
Authors: Joshua Jackson

Most producers would like information on cattle weight to improve management. The widespread use of cattle scales on most farms in Kentucky is limited by the cost of purchasing the equipment. Local cattlemen's associations or extension office's frequently have scale systems to rent or borrow. This has challenges due to scheduling conflicts, reliability, rental fees, or the scale may not align with the handling facility layouts. There are two options for producers to obtain cattle weights--in the alley or at the chute. An alley scale provides the ability to measure cattle weight independent of the head gate or cattle chute. This publication describes the measurement of cattle in the alley leading to a head gate or cattle chute.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 2.90 mb
Pages: 6



AEN-139

Kentucky Wind Directions and Magnitudes: A Tool for Siting Barns

5/13/2019 (new)
Authors: Matthew Dixon, Morgan Hayes, Joshua Jackson

Wind is variable in time and space. This is especially true across the state of Kentucky, considering the geographical variety from the Eastern Kentucky mountains to the flatter grain production region in Western Kentucky. In particular, there is a region of potentially variable wind around Cincinnati, near the Ohio River. In trying to account for this variability, monthly wind maps across the state of Kentucky have been developed using the past 30 years of recorded wind data. These data can be used to assist in site evaluations for barns and planning farmstead layouts. Knowing wind speed and direction will help optimize the natural ventilation taking place within agricultural buildings.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 2.02 mb
Pages: 3



AEN-138

Protecting Pastured Cattle using Windbreaks and Mounds

4/10/2019 (new)
Authors: Steve Higgins, Lee Moser

Research shows that cattle benefit from summer shade and winter shelter. Pastured cattle seek shelter around structures, under trees, and in forested streamside zones. These areas are often heavily trafficked and become muddy, compacted loafing areas. Mud creates further stress on cattle and compounds the problems of temperature stress and feed inefficiencies. One option that could be used to lure cattle from these areas and provide winter shelter and summer shade is a constructed windbreak fence on a mound.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags: equipment and structures
Size: 1.80 mb
Pages: 4



AEN-137

Farm Gates: Design Considerations

2/18/2019 (new)
Authors: Steve Higgins, Lee Moser

Farm gates are a necessity for controlling traffic and increasing security. There are many design considerations for optimizing a system of farm gates. Very few gates incorporate all the recommended design components that will be discussed in this publication. However, to move people, materials, equipment, and livestock through a gateway, the gateway should economize time, be navigable, and operate in an efficient manner. Time spent operating a poorly designed gateway is time wasted and a hindrance to production. This publication is a guide to aid producers in creating more functional designs for gateways.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags: equipment and structures
Size: 2.50 mb
Pages: 6



AEN-136

Fence Line Stiles, Escapes, and Refuges

1/23/2019 (new)
Authors: Steve Higgins, Michele McHugh, Lee Moser

Opening farm gates for trucks, tractors, equipment, and livestock is unavoidable. However, opening a large gate, or a set of gates, for a person on foot is extremely inefficient, especially if the entrance does not put the producer where they need to be. An inconveniently located gate can lead to additional steps and unnecessary movements. Opening gates may require dealing with clasps, chains, or ropes just to get the gate unfastened. The gate may then have to be lifted or dragged open and closed. The bottom-line is that entering a poorly installed and unmaintained gateway can make the experience of opening and closing gates a time consuming nuisance.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags: equipment and structures
Size: 9.30 mb
Pages: 4



AEN-135

Rainwater Harvesting for Livestock Production Systems

11/7/2017 (new)
Authors: Steve Higgins, Lee Moser

Abundant, clean drinking water is an essential nutrient for livestock. The obvious water source that is recommended by veterinarians is city water. However, city water has its drawbacks. City water distribution systems are often expensive to install and have a recurring usage charge. In some instances, city water is unavailable, may have inadequate pressure, or producers consider it too expensive to operate, forcing them to use streams and ponds to water livestock. Collecting rainwater from a catchment area, is a low cost, high quality alternative water source that can supplement traditional water distribution systems and improve the environmental quality of farming operations. Rainwater harvesting involves the collection of rainfall from rooftops or land based catchments systems for storage and distribution as needed. Capturing rainfall has the added benefit of improving water quality by reducing soil erosion and runoff. Strategically installed rainwater harvesting systems can be used to direct stormwater around sensitive areas of the farm where animal waste is present, thus reducing the potential for nutrient and pathogen delivery to nearby waterways. Rainwater harvesting and stormwater management techniques can also reduce the volume of water that must be managed in liquid manure management systems by diverting clean water away from manure pits and lagoons.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 807 kb
Pages: 5



AEN-115

Appropriate All-Weather Surfaces for Livestock

10/16/2017 (minor revision)
Authors: Steve Higgins, Stephanie Mehlhope, Lee Moser, Sarah Wightman

Many livestock producers would say that mud is a natural part of livestock production. But the creation of mud costs producers money and makes them less competitive. Livestock that walk through mud require more feed for energy but actually eat less because walking in mud requires more effort to get to feed and water. Therefore, mud decreases average daily gains. Mud accumulation on the coat increases the amount of energy needed to generate heat in the winter or to keep cool in the summer. Also, it can lower sale prices due to hanging tags. The creation of mud also increases animal stress and leads to a variety of health problems, including protozoan and bacterial infections. It is essential that livestock producers understand that mud hinders cost-efficient livestock production and efforts should be made to limit the creation of mud. This publication explains how mud is created and describes different types of hardened surfaces and pads that agricultural producers should use to reduce mud creation and ultimately increase production efficiency and protect natural resources.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags: equipment and structures, livestock
Size: 2.73 mb
Pages: 8



AEN-133

Tire Tanks for Watering Livestock

8/8/2017 (new)
Authors: Carmen Agouridis, Steve Higgins, Joshua Jackson, Lee Moser

Kentucky's abundant forage and extensive stream system have helped the Commonwealth become the largest beef producing state east of the Mississippi River. While streams and ponds serve as a water source for many operations, livestock can quickly degrade soil and water quality by trampling streambanks and defecating and urinating in and around waterbodies. These actions increase sediment, pathogen, and nutrient loads to streams, rivers, and lakes which in turn can causes eutrophication. To help protect the health of Kentucky's soil and water, producers can implement best management practices (BMPs). These practices help reduce the sources of pollutants and/or the transport of pollutants to waterways. One such practice or BMP is limiting cattle access to streams and ponds. When producers exclude livestock access to stream and ponds and their associated riparian buffers, an alternative source of water is required. Automatic water fountains are one commonly used means of providing cattle with water from an alternate source. A water tank constructed using a heavy equipment tire may serve as a viable option for supplying livestock with an alternate source of water.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags: equipment and structures, livestock
Size: 4.65 mb
Pages: 8



AEN-132

Modeling Best Management Practices

10/20/2016 (new)
Authors: Carmen Agouridis, Somsubhra Chattopadhyay, Richard Warner

Understanding the effectiveness of BMPs based on their location in the watershed and in relation to different types of pollutants is an important part of protecting waterbodies. One way to do this is with the use of models.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 652 kb
Pages: 3



AEN-131

Farmstead Planning: Old Farm Buildings Repurposed for Better Farming: How to Develop a Complex

6/6/2016 (new)
Authors: Steve Higgins, Lee Moser

The traditional farmstead planning process might have been ideal for farming operations set up on blank slate farms that were surveyed based on 640-acre sections. However, these concepts are more challenging for irregular shaped farms in Kentucky with existing structures built more than a half century ago. Older farm buildings may be underutilized because they were constructed using what would be considered obsolete technologies today. It is essential that producers take the time and obtain the necessary help to develop their farming operation plan in order to realize their potential and achieve their goals.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 516 kb
Pages: 3



AEN-130

Drought Risk Management for Beef Cattle Farms

2/25/2016 (new)
Authors: Steve Higgins, Lee Moser, Kylie Schmidt

Once a drought occurs, it can be difficult to effectively manage your resources and overcome the conditions that drought creates. At the heart of effective drought management is preparedness. A systems-management approach is an ideal tool for drought preparedness, as its goal is to improve each component of the farming operation (soils, forages, facilities, stock, etc.) and improve the connections between the components (i.e. the system). The goal of this publication is to aid beef producers in implementing best management practices (BMPs) that take a systems approach to maximizing farm water use efficiency, while operating under the assumption that water is becoming an increasingly uncertain resource that is vital to the future of the farm.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 2.40 mb
Pages: 7



AEN-129

Measuring Discharge in Wadeable Streams

2/9/2016 (new)
Authors: Carmen Agouridis, Whitney Blackburn-Lynch, Tyler Sanderson

Knowing the amount of water flowing in a stream can improve management practices such as those related to streambank erosion, pollutant loading and transport, and flood control. Streamflow or discharge is defined as the volume of water moving past a specific point in a stream for a fixed period of time.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 2.29 mb
Pages: 4



AEN-128

Sediment Fingerprinting

2/9/2016 (new)
Authors: Carmen Agouridis, Somsubhra Chattopadhyay

Sediments in waterbodies cause a number of problems such as harming aquatic habitats, filling reservoirs, and worsening flooding. High amounts of sediment in the water inhibit the ability of fish and aquatic macroinvertebrates to move, breathe, hunt and reproduce. Accumulated sediments in reservoirs reduces their useful life and increases costs associated with maintenance. Streams experiencing such sediment buildup carry less water during storm events.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 1.51 mb
Pages: 4



AEN-127

Hydrologic Modeling

2/9/2016 (new)
Authors: Carmen Agouridis, Richard Warner

Increased levels of urbanization result in reductions in the amount of rainfall that infiltrates and evapotranspires and increases the amount of rainfall that becomes runoff. These changes can result in flooding, streambank erosion, and water quality degradation. Hydrologic models are useful in understanding watersheds and how changes in a watershed can affect hydrology. Hydrologic models can predict the amount of rainfall that becomes runoff under different scenarios.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 844 kb
Pages: 5



AEN-126

Common Hazards in Karst Terrain

11/11/2014 (new)
Authors: Carmen Agouridis

Karst refers to terrain largely drained by subsurface conduits and caves. Karst landscapes are characterized by surface features such as springs, sinkholes, shallow depressions, and rolling hills. Karst regions are also known for their subsurface or below-ground features such as conduits and caves. What makes a karst region unique is the way runoff drains from the land. In karst regions, some of the runoff flows into surface features such as sinkholes where it then travels underground. Some of this infiltrated water re-emerges at springs, and some continues moving underground.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 2.70 mb
Pages: 4



AEN-125

Closing a Liquid Manure Storage Structure

8/11/2014 (new)
Authors: Steve Higgins, Kylie Schmidt

Liquid manure storage structures, such as a lagoon, holding pond, or pit, serve an essential purpose on an active livestock operation. However, when this structure is no longer actively managed it can become a major liability to the producer because of its potential to have a discharge. The discharge from a liquid manure storage structure can contain pollutants such as nutrients, heavy metals, hormones, pathogens, and agriculture chemicals, all of which can pose serious threats to human health and aquatic ecosystems. Because of the pollution potential, livestock producers ceasing their operation are required to close their liquid manure storage structure(s) as part of their Kentucky No Discharge Operational Permit. To help offset the costs of closing the structure, producers may want to apply for cost share funds through the Division of Conservation. Before beginning to close a liquid manure structure, the Kentucky Division of Water (KDOW) must be provided with a closure plan. This publication outlines the preferred practices and steps for closing a liquid manure structure to meet the guidelines of the KDOW.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 106 kb
Pages: 2



AEN-124

Streambank Erosion

7/23/2014 (new)
Authors: Carmen Agouridis, Matthew Burnette

Streambank erosion refers to the removal of soil and other material, such as rock and vegetation, from the streambank. Streambank erosion is a naturally occurring process, but the rate at which it occurs is often increased by anthropogenic or human activities such as urbanization and agriculture. Changes in land use can cause streambanks to erode at rates much faster than those seen in natural, undisturbed systems.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 3.11 mb
Pages: 8



AEN-123

Lowering Somatic Cell Counts with Best Management Practices

5/14/2014 (new)
Authors: Steve Higgins, Kylie Schmidt, Sarah Wightman

As health and food safety concerns grow, dairy producers are facing more stringent regulations. In 2010, the European Union (EU) set the somatic cell count (SCC) upper limit, an indicator of milk quality, for exported milk at 400,000 cells per milliliter. However, the current U.S. SCC limit is 750,000 cells per milliliter. As of January 2012, any U.S. milk used in export markets must meet the EU standards. It is projected that US milk processors will gradually adopt the EU upper limit, making it difficult for dairy producers to sell milk containing more than 400,000 somatic cells per milliliter. Dairy producers will have to find innovative and cost-effective ways to reduce the somatic cell count of their milk. This publication will discuss how agriculture best management practices can be used to lower SCC.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 350 kb
Pages: 4



AEN-121

Increasing Dry Cow and Bred Heifer Performance with Environmental Management

4/23/2014 (new)
Authors: Steve Higgins, Kylie Schmidt

Producers must understand that dry cows and bred heifers are the next milking herd, so focusing on their management can maintain or actually increase future profitability. This publication focuses on environmental management strategies that improve dry cow and bred heifer performance.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 454 kb
Pages: 3



AEN-122

Restoring Streams

3/4/2014 (new)
Authors: Carmen Agouridis, Evan Wesley

Stream restoration is the re-establishment of the structure (dimension, pattern, and profile) and function (transport of water, sediment, and nutrients; habitat provision) of a degraded stream as closely as possible to pre-disturbance conditions.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 3.63 mb
Pages: 5



AEN-120

Groundwater Quality

1/6/2014 (new)
Authors: Carmen Agouridis

Groundwater is an important water source for activities such as drinking, bathing, cooking, and crop irrigation. Keeping our groundwater sources clean is becoming more challenging with an ever growing population. In watersheds underlain with karst, such as many of those in Kentucky, the groundwater is more susceptible to contamination. This is because surface waters, such as runoff and in some cases streamflow, travel into the subsurface of karst by way of fractures, sinkholes, swallow holes, conduits and caves Such direct paths into the groundwater mean that pollutants reach the aquifer much more quickly with little to no filtration. Thus, while waters from springs and wells may look clean, they may actually contain unsafe levels of pollutants such as bacteria and nitrogen.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 2.00 mb
Pages: 3



AEN-119

Keeping Trash Out of Streams

11/14/2013 (new)
Authors: Carmen Agouridis, Rachel Williams

Fresh water is an essential natural resource that is used every day for drinking, bathing, cooking, cleaning, and recreation. In Kentucky, the water used for these tasks mainly comes from streams and rivers, but it can also come from groundwater. Because our streams, rivers, and aquifers are so vital to our daily lives, it is important that we protect them from trash, debris, and other pollutants found in stormwater. What happens to the land around these water sources affects their condition and health.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 1.20 mb
Pages: 2



AEN-118

Managing Stormwater Using Low Impact Development (LID) Techniques

8/21/2013 (new)
Authors: Carmen Agouridis, John McMaine

As more land is covered by impervious surfaces, less rainfall infiltrates into the ground and instead becomes runoff. Too much runoff is problematic. Flooding increases, streambanks erode, and water quality is reduced. An increase of impervious area of as little 10 percent has been shown to negatively impact streams. The purpose of this publication is to explain low impact development strategies and how they can be used to improve stormwater management by reducing impacts on streams.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 5.30 mb
Pages: 8



AEN-117

Modifying a Bale Unroller for Mulching between Plastic-covered Beds

4/25/2013 (new)
Authors: John Wilhoit

Round bales of hay or straw can be used to mulch between rows of plastic film mulch used in vegetable production. This practice may be particularly useful for organic production where herbicide use is prohibited. To make the job of unrolling round bales between rows of plastic easier, a commercially available three-point hitch mounted bale unroller was modified by extending the toolbar and adding a second mast so that the bale is offset, allowing the tractor to straddle a row of plastic while unrolling the bale between the rows.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 3.40 mb
Pages: 3



AEN-116

Algae-Based CO2 Mitigation for Coal-Fired Power Plants

1/22/2013 (new)
Authors: Czarena Crofcheck, Tabitha Graham, Michael Montross

As the world's population swells and the needs of developing countries increase, the world's overall energy usage also continues to rise. Recent international legislation emphasizes the effects of climate change and the crucial need to find a way to decrease the greenhouse gas (GHG) emissions being released into the environment. Consequently, power plants have an increased urgency to find a viable way to decrease their GHG emissions. This issue has prominent implications for Kentucky due to our economy's dependence upon coal production.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 1.94 mb
Pages: 3



AEN-114

Using Weep Berms to Improve Water Quality

11/9/2012 (new)
Authors: Carmen Agouridis, Ross Guffey, Richard Warner

Non-point source pollution (NPS) occurs when rainfall and snowmelt flows over the ground, picking up pollutants such as pathogens, sediments, and nutrients on its way to streams, rivers, lakes, and other bodies of water. More than 50 percent of the nation's rivers and streams and nearly 70 percent of the nation's lakes are impacted by NPS. Pathogens, sediments, and nutrients are the biggest contributors to impairment of rivers and streams while mercury, nutrients, and PCBs (polychlorinated biphenyls) are the biggest contributors to the impairment of lakes. One method of managing NPS pollution is through the use of structural best management practices (BMPs). Structural BMPs are designed to decrease the volume of runoff that enters water bodies by increasing infiltration rates. Examples of structural BMPs include rain gardens, stormwater wetlands, and riparian buffers. A newer structural BMP is a weep berm.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 4.40 mb
Pages: 8



AEN-113

Nutrient Management Concepts for Livestock Producers

3/27/2012 (new)
Authors: Steve Higgins, Sarah Wightman

Nutrients are constantly cycling through farms. Nutrients come onto a farm in the form of feed, commercial fertilizers, manure, or compost, and they leave the farm with harvested crops, sold livestock, and off-site disposal of manure and other waste. Sometimes nutrients are even lost to the air, soil, or water. Nutrient management allows farmers to use nutrients (specifically nitrogen, phosphorus, and potassium) wisely for optimal economic benefit with minimal impact on the environment.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 345 kb
Pages: 5



AEN-112

A New Concept in On-Farm Biofuel Production

3/19/2012 (new)
Authors: Will Adams, Michael Montross, Sue Nokes, Tim Stombaugh

For many social, political, and economic reasons, biofuels are moving quickly from the fuel of tomorrow to the fuel of today. Researchers at the University of Kentucky are working on a new system of biofuel production that involves on-farm processing of biomass. This factsheet provides a general overview of this new concept that could have a great impact on agriculture and the fuel-production industry.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 235 kb
Pages: 2



AEN-111

Butanol: The New Biofuel

3/8/2012 (new)
Authors: Kathryn Gray, Michael Montross, Sue Nokes, Tim Stombaugh

Butanol is a type of alcohol that has received renewed interest recently as a potential green alternative to petroleum fuels. This factsheet gives a basic history and description of butanol and its potential use as a biofuel in gasoline and diesel engines.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 220 kb
Pages: 2



AEN-109

Sinkhole Management for Agricultural Producers

10/18/2011 (new)
Authors: Steve Higgins, Sarah Wightman

A karst landscape develops when the limestone or dolostone bedrock underneath the soil dissolves and/or collapses due to weathering. A karst system can be recognized by surface features such as depressions, sinkholes, sinking streams, and caves. In karst systems, surface water and groundwater are interconnected: surface water runoff flows into sinkholes and sinking streams and recharges the groundwater; likewise, springs maintain stream flow in the dry season. Kentuckians living in karst areas need to be acutely aware that any pollutants that reach either surface water or any karst feature can pollute the entire groundwater system (also called an aquifer). In addition, the cave system that accompanies a karst aquifer can allow pollutants to contaminate miles of water resources in just a few hours.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 487 kb
Pages: 4



AEN-107

Paved Feeding Areas and the Kentucky Agriculture Water Quality Plan

7/28/2011 (new)
Authors: Steve Higgins, Sarah Wightman

Kentucky's abundant forage makes it well suited for grazing livestock. Livestock producers can make additional profits by adding a few pounds before marketing calves; however, adding those pounds requires keeping calves during the winter months, when pasture forages are dormant and supplemental feed is required. The areas used to winter calves need to be conducive to feeding and need to avoid negatively impacting the environment, especially water quality.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 260 kb
Pages: 5



AEN-103

Stormwater BMPs for Confined Livestock Facilities

7/28/2011 (new)
Authors: Steve Higgins, Sarah Wightman

The U.S. Environmental Protection Agency states that agricultural sediment, pathogens, and nutrients account for more than 50 percent of water pollution in the United States. Animal confinement facilities, widely used for holding, feeding, and handling animals, are potential sources of that pollution. The pollution load of these facilities can be reduced by installing and maintaining best management practices. The BMPs may be implemented as part of permit compliance or may be used to ensure that a permit is not needed.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 300 kb
Pages: 5



AEN-108

Permeable Pavement for Stormwater Management

7/26/2011 (new)
Authors: Carmen Agouridis, Joe Luck, Jonathan Villines

Managing runoff in urban areas offers many challenges for engineers, landscape architects, and planners. As cities grow, the amount of impermeable surfaces--those that do not allow water to infiltrate into the ground--increases. Examples of impervious surfaces are asphalt roads, concrete sidewalks, parking lots, building roofs, and areas of highly compacted soils such as in subdivisions. If not properly managed, the stormwater runoff produced by these impermeable surfaces can have negative effects on nearby surface waters.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 720 kb
Pages: 7



AEN-106

Reducing Stormwater Pollution

7/15/2011 (new)
Authors: Carmen Agouridis, Joe Luck, Jonathan Villines, Sarah Wightman

Stormwater is excess water from rainfall and snowmelts that flows over the ground and does not infiltrate the soil. It is a concern not just in urban areas but in suburban and agricultural locations as well. As stormwater runoff flows over the land or impervious surfaces, it picks up and transports trash and debris as well as pollutants such as pathogens, nutrients, sediments, heavy metals, and chemicals. This publication reviews some of these techniques and provides a list of recommended resources for additional information.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 330 kb
Pages: 8



AEN-105

Pasture Feeding, Streamside Grazing, and the Kentucky Agriculture Water Quality Plan

7/13/2011 (new)
Authors: Carmen Agouridis, Steve Higgins, Sarah Wightman

Kentucky's abundant forage makes it well suited for grazing livestock, but the pasturing and pasture feeding of livestock need to be managed. Allowing cattle to behave as they would naturally can lead to overgrazing, congregation in sensitive areas, buildup of mud, loss of vegetation, compaction of soils, and erosion.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 284 kb
Pages: 5



AEN-101

Stream Crossings for Cattle

7/13/2011 (new)
Authors: Carmen Agouridis, Steve Higgins, Sarah Wightman

This publication provides livestock producers with instructions on how to install a stream crossing that provides animal and vehicular access across streams. This best management practice (BMP) is intended for use with exclusion fencing that restricts cattle access to the stream. Implementation of a stream crossing with exclusion fencing will improve water quality, reducing nutrient, sediment, pathogen, and organic matter loads to streams.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 1.10 mb
Pages: 7



AEN-104

How to Close an Abandoned Well

7/7/2011 (new)
Authors: Steve Higgins, Sarah Wightman

Abandoned wells are often the only structures remaining after an old house or barn has been removed. If left unmanaged in agricultural areas, these abandoned wells can pose a serious threat to livestock and human safety because of the large surface openings they often have.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 400 kb
Pages: 3



AEN-100

Building a Grade Stabilization Structure to Control Erosion

6/15/2011 (new)
Authors: Steve Higgins, Donald Stamper, Sarah Wightman

Gully erosion creates large eroded channels that become problematic for many farms. Gullies form in natural drainage swales when vegetation in the swale is lost through overgrazing or tillage practices. They cause valuable soil to erode, and they form large channels that drain runoff into streams. This runoff can carry sediment, nutrients, and pathogens that can degrade the water quality.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 900 kb
Pages: 4



AEN-102

Basics of Automatic Section Control for Agricultural Sprayers

6/2/2011 (new)
Authors: Joe Luck, Scott Shearer, Tim Stombaugh

The potential economic and environmental benefits of these systems are gaining the attention of producers and custom applicators looking to reduce their overall chemical costs. The purpose of this publication is to describe the basic operation and benefits of automatic section control systems.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 1.05 mb
Pages: 4



AEN-98

Alternative Water Source: Developing Springs for Livestock

5/5/2011 (new)
Authors: Steve Higgins, Donald Stamper, Sarah Wightman

Water supply is a key component in livestock production. One option producers have when providing water is to develop an existing spring, which occurs when groundwater running along an impervious rock layer hits a fracture and discharges on the surface.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 814 kb
Pages: 4



AEN-99

Shade Options for Grazing Cattle

3/29/2011 (new)
Authors: Carmen Agouridis, Steve Higgins, Sarah Wightman

Shade is a must for pasture-based grazing systems. It curtails heat stress, which is detrimental to cattle and causes a decrease in milk production, feed intake, weight gains, and fertility.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 866 kb
Pages: 8



AEN-96

Low-Cost Cold Storage Room for Market Growers

8/23/2010 (reprinted)
Authors: John Wilhoit

Lower-cost cold storage options can benefit market growers by helping preserve produce freshness and quality for a few additional days. Produce losses can be significantly reduced, especially for growers transitioning to a higher level of production who have excess produce to carry over from one day's market to the next.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 265 kb
Pages: 4



AEN-97

Pallet Rack Structures for Curing Burley Tobacco

7/29/2010 (new)
Authors: Dave Ash, George Duncan, John Wilhoit

Curing facilities for housing tobacco can be expensive. However, using pallet racks for suspending stick tobacco, a recently developed technique for curing burley tobacco, can offer tobacco growers an alternative that substantially reduces long-term investment.

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags: farm crops, tobacco
Size: 513 kb
Pages: 6



AEN-95

GPS Changes: How to be Prepared

11/14/2008 (new)
Authors: Tim Stombaugh

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 179 kb
Pages: 2



AEN-94

Saving Fuel in the Field

10/23/2008 (new)
Authors: Sam McNeill, Scott Shearer, Tim Stombaugh, John Wilhoit

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 110 kb
Pages: 2



AEN-93

Proper Tire and Ballast Inflation

10/23/2008 (new)
Authors: Sam McNeill, Greg Schwab, Scott Shearer, Tim Stombaugh, John Wilhoit

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 201 kb
Pages: 2



AEN-92

Dairy Waste Utilization Management Tool

3/30/2007 (new)
Authors: Jose Bicudo, Anshu Singh

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 245 kb
Pages: 8



AEN-91

Managing Liquid Dairy Manure

9/30/2006 (new)
Authors: Jose Bicudo

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 216 kb
Pages: 4



AEN-90

Biodiesel FAQ

4/30/2006 (new)
Authors: Czarena Crofcheck, Michael Montross, Tim Stombaugh

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 220 kb
Pages: 2



AEN-89

Biodiesel Basics

4/30/2006 (new)
Authors: Czarena Crofcheck, Michael Montross, Tim Stombaugh

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 263 kb
Pages: 4



AEN-88

The Global Positioning System

9/1/2005 (new)
Authors: Ben Koostra, Doug McLaren, Tim Stombaugh

Departments: Biosystems and Agricultural Engineering, Forestry and Natural Resources
Series: Agricultural Engineering (AEN series)
Tags:
Size: 305 kb
Pages: 6



AEN-86

Movable Tobacco Curing Frames

4/1/2005 (new)
Authors: George Duncan, Larry Swetnam, Linus Walton

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags: farm crops, tobacco
Size: 631 kb
Pages: 8



AEN-87

Measuring Relative Humidity in Agricultural Environments

2/1/2005 (new)
Authors: George Duncan, Richard Gates

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags:
Size: 630 kb
Pages: 4



AEN-85

Post-Tier Rail and Typar or Metal-Covered Tobacco Field Curing Structures

7/1/2004 (new)
Authors: George Duncan

Departments: Biosystems and Agricultural Engineering
Series: Agricultural Engineering (AEN series)
Tags: farm crops, tobacco
Size: 552 kb
Pages: 12