University of Kentucky College of Agriculture
 

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Not a complete list as of 8-30-17.

Tag: corn



Chemical Control of Weeds in Kentucky Grain Crops, 2018
11/6/2017 (major revision)

The use of herbicides suggested in this publication is based on research at the Kentucky Agricultural Experiment Station and elsewhere. We have given what we believe to be the most effective herbicides, with the most suitable rates and times of application. Smaller files are available here. | AGR-6
3,300 printed copies | 140 pages | - | 73 downloads | PDF: 2,254 kb


2017 Kentucky Hybrid Corn Performance Test
11/2/2017 (new)

The objective of the Kentucky Hybrid Corn Performance Test is to provide relative performance estimates of hybrid seed corn sold in Kentucky. The test attempts to treat every hybrid similarly in an unbiased manner. Agronomic practices that meet or exceed university guidelines are implemented at each location. | PR-725
2,400 printed copies | 24 pages | 5,248 words | 12 downloads | PDF: 2,924 kb


Holcus Leaf Spot
10/11/2017 (new)

Holcus leaf spot, a bacterial disease, can be seen sporadically in Kentucky cornfields, and it is challenging to diagnose. This publication describes the disease symptoms, conditions that favor disease, and how to distinguish holcus spot from herbicide injury that can mimic this disease. | PPFS-AG-C-6
web only | 3 pages | 483 words | 3 downloads | PDF: 889 kb


Diplodia Ear Rot
10/11/2017 (new)

Diplodia ear rot can reduce yield and grain quality by damaging kernels, lowering grain test weight, and reducing grain fill. Incidence of affected ears in the field can vary from 1% or 2% to as high as 80%. Although mycotoxins have been associated with Diplodia ear rot in South America and South Africa, there have been no reports of livestock feeding issues due to mycotoxins linked to Diplodia ear rot in the United States. | PPFS-AG-C-5
web only | 3 pages | 514 words | - | PDF: 990 kb


Fungicide Efficacy for Control of Corn Diseases
9/28/2017 (new)

The Corn Disease Working Group (CDWG) developed ratings for how well fungicides control major corn diseases in the United States. The CDWG determined efficacy ratings for each fungicide listed in the table by field testing the materials over multiple years and locations. Ratings are based on the product's level of disease control and does not necessarily reflect yield increases obtained from product application. A product's efficacy depends upon proper application timing, rate, and application method as determined by the product label and overall disease level in the field at the time of application. | PPA-49
web only | 2 pages | 690 words | 8 downloads | PDF: 1,120 kb


Stewart's Wilt of Corn
1/1/2017 (new)

Historically, Stewart's wilt of corn has resulted in losses for corn producers. Although this disease still occurs occasionally, it has become less prevalent in recent years in Kentucky and surrounding states. Stewart's wilt has been known by other names, such as bacterial leaf blight, Stewart's leaf blight, and maize bacteriosis. | PPFS-AG-C-4
web only | 3 pages | 1,079 words | 3 downloads | PDF: 1,445 kb


2016 Kentucky Hybrid Corn Performance Test
10/24/2016 (new)

The objective of the Kentucky Hybrid Corn Performance Test is to provide relative performance estimates of hybrid seed corn sold in Kentucky. The test attempts to treat every hybrid similarly in an unbiased manner. Agronomic practices that meet or exceed university guidelines are implemented at each location. | PR-708
2,300 printed copies | 24 pages | 5,158 words | 34 downloads | PDF: 2,898 kb


2015 Kentucky Hybrid Corn Performance Test
10/30/2015 (new)

The objective of the Kentucky Hybrid Corn Performance Test is to provide relative performance estimates of hybrid seed corn sold in Kentucky. The test attempts to treat every hybrid similarly in an unbiased manner. Agronomic practices that meet or exceed university guidelines are implemented at each location. | PR-692
2,200 printed copies | 28 pages | 1,411 words | 39 downloads | PDF: 3,300 kb


Organic Corn Production in Kentucky
1/15/2015 (new)

The number of organic dairy cows in Kentucky has been steadily increasing for years, yet there's not enough organic corn produced in the state to feed the growing herds. In short, a new market has developed in the state, but few local farmers are taking advantage of it. While Kentucky farmers are no strangers to corn, growing corn organically utilizes different management, cultural and marketing practices and requires new skills. And, importantly, organic production must follow an approved farm plan that allows farmers to sell their corn as certified organic. This publication is designed to be both an introduction to a new enterprise as well as a practical manual for those interested in pursuing organic corn production on their own farms. | ID-225
2,000 printed copies | 30 pages | 19,856 words | 47 downloads | PDF: 2,600 kb


2014 Kentucky Hybrid Corn Performance Test
11/3/2014 (new)

The objective of the Kentucky Hybrid Corn Performance Test is to provide relative performance estimates of hybrid seed corn sold in Kentucky. The test attempts to treat every hybrid similarly in an unbiased manner. Agronomic practices that meet or exceed university guidelines are implemented at each location. | PR-675
2,300 printed copies | 28 pages | 5,214 words | 34 downloads | PDF: 3,387 kb


2013 Kentucky Hybrid Corn Performance Test
11/11/2013 (new)

The objective of the Kentucky Hybrid Corn Performance Test is to provide relative performance estimates of hybrid seed corn sold in Kentucky. The test attempts to treat every hybrid similarly in an unbiased manner. Agronomic practices that meet or exceed university guidelines are implemented at each location. | PR-659
2,500 printed copies | 24 pages | 1,430 words | 53 downloads | PDF: 2,600 kb


White and Yellow Food-Grade Corn
7/15/2013 (minor revision)

Kentucky continues to be one of the leading states in the production of white and yellow corn for food. The demand for food grade corn remains strong, with an increasing demand for white corn for snack food uses. Food grains can be grown for the open market or under contract to dry mill processors. The contract should be in place prior to planting. There is no on-farm market. | CCD-CP-48
web only | 2 pages | 809 words | 1 download | PDF: 344 kb


Corn for Grain and Silage
6/15/2013 (minor revision)

Corn for grain and silage can be produced for on-farm use and/or off-farm sale. There are a variety of local and regional markets for corn in Kentucky, such as local grain elevators. U.S. producers face international competition in the livestock category; corn prices have fluctuated greatly in recent years. Expanded corn markets, as well as the emergence of more uses for corn, could help stabilize future prices. In addition to animal feed, field corn uses include industrial (sweeteners) and energy (ethanol) products | CCD-CP-28
web only | 3 pages | 1,003 words | - | PDF: 360 kb


Popcorn and Blue Corn
6/4/2013 (minor revision)

Popcorn and blue corn (Zea mays) are harvested for their grain and sold for human consumption. Popcorn is a special type of flint corn, while blue corn is a general term for corn varieties that produce ears with blue or mixtures of blue and white kernels. | CCD-CP-38
web only | 2 pages | 894 words | 1 download | PDF: 532 kb


Broomcorn
4/18/2013 (minor revision)

Broomcorn (Sorghum vulgare) is not actually corn, but is instead related to the sorghums used for grain and syrup (Sorghum bicolor). Broomcorn has a coarse, fibrous seed head that has been used to make various types of brooms and brushes for several hundred years. While there are still artisans creating these natural brooms today, this crop is now more commonly used to make decorative items, such as wreaths, swags, floral arrangements, baskets, and autumn displays. It takes about 60 sprays (heads) to make a broom, but wreaths and dried arrangements require only a few plants. Broomcorn is available in natural colors, as well as purple and various fall colors. | CCD-CP-23
web only | 2 pages | 992 words | - | PDF: 623 kb


Specialty Field Corns
3/18/2013 (minor revision)

This profile discusses some of the types of special purpose field corn (Zea mays) that are harvested for grain and sold for animal feed, industrial use, or human consumption. These specialty corns have been genetically altered to improve their starch, protein, or oil content, depending on their intended use. | CCD-CP-40
web only | 3 pages | 995 words | - | PDF: 512 kb


Drought-Stressed Corn Silage Valuation, 2012
2/6/2013 (new)

Extended dry conditions have impacted the corn crop severely in many areas of the state this year. As the condition of the corn crop deteriorates, many have been forced to look at salvage options such as cutting corn for silage and possibly hay for some fields. Due to the extreme weather conditions this year, this publication will focus on valuing drought-stressed corn silage. | ID-205
web only | 6 pages | 4,213 words | 35 downloads | PDF: 445 kb


2012 Kentucky Hybrid Corn Performance Test
11/12/2012 (new)

The objective of the Kentucky Hybrid Corn Performance Test is to provide performance estimates of hybrid seed corn sold in Kentucky. The test has been conducted in an unbiased manner according to accepted agronomic practices. | PR-642
2,000 printed copies | 16 pages | 1,748 words | 7 downloads | PDF: 978 kb


2011 Kentucky Hybrid Corn Performance Test
11/4/2011 (new)

The objective of the Kentucky Hybrid Corn Performance Test is to provide performance estimates of hybrid seed corn sold in Kentucky. The test has been conducted in an unbiased manner according to accepted agronomic practices. | PR-624
3,200 printed copies | 24 pages | 9,976 words | 2 downloads | PDF: 450 kb


Assessing Foliar Diseases of Corn, Soybeans, and Wheat: Principles and Practices
11/1/2011 (new)

This publication provides basic information on how to conduct disease assessments in on-farm trials. The focus is on foliar diseases, since root diseases are much more difficult to assess properly. The publication begins with fundamentals of proper design of field trials. | PPFS-MISC-6
web only | 5 pages | 1,693 words | 1 download | PDF: 719 kb


Foliar Fungicide Use in Corn and Soybeans
10/1/2011 (new)

Interest in the use of foliar fungicides for corn and soybean has expanded dramatically in the U.S. over the past few years, resulting in a major change in how these crops are being produced on many farms. Until recently, foliar fungicides for soybeans and corn were reserved for seed production fields to protect seed quality in very specific circumstances or for specialty crops. Applications for the purpose of protecting crop yield were rarely economical. However, the current trend in Kentucky, as well as many other corn/soybean producing states, is towards an increased use of foliar fungicides on these crops as a means of maximizing yields. | PPFS-GEN-12
web only | 9 pages | 3,829 words | 2 downloads | PDF: 1,093 kb


Corn Growth Stages and Growing Degree Days: A Quick Reference Guide
9/13/2011 (new)

Corn growth stages are based on the leaf collar method, where fully emerged leaves (leaf collar visible) are used to stage vegetative development. Growing degree days (GDDs) are used to relate temperature to corn growth and development. | AGR-202
2,000 printed copies | 2 pages | 802 words | 29 downloads | PDF: 278 kb


Organic Corn for Feed or Food
2/14/2011 (new)

Organic white and yellow food grade corn is produced for use in organic cereals, tortillas, corn chips, snack foods, cornmeal, and other corn-based processed products. Organic corn is also used as animal feed in organic beef, dairy, poultry, and hog production | CCD-CP-37
web only | 6 pages | 2,534 words | 2 downloads | PDF: 467 kb


2010 Kentucky Hybrid Corn Performance Test
10/28/2010 (new)

The objective of the Kentucky Hybrid Corn Performance Test is to provide performance estimates of hybrid seed corn sold in Kentucky. The test has been conducted in an unbiased manner according to accepted agronomic practices. | PR-606
3,200 printed copies | 24 pages | - | - | PDF: 424 kb


Corn and Soybean Production Calendar
12/16/2009 (reprinted)

The Corn and Soybean Production Calendar was developed to help producers prioritize and schedule work events in a timely fashion on the farm. Weather events and equipment breakdowns rarely follow an organized schedule. However, if other practices within the farming operation are prioritized, perhaps a producer can better address the emergencies that will occur. | ID-159
2,000 printed copies | 12 pages | - | 23 downloads | PDF: 650 kb


2009 Kentucky Hybrid Corn Performance Test
11/18/2009 (new)

The objective of the Kentucky Hybrid Corn Performance Test is to provide performance estimates of hybrid seed corn sold in Kentucky. The test has been conducted in an unbiased manner according to accepted agronomic practices. | PR-587
4,000 printed copies | 24 pages | - | - | PDF: 434 kb


2008 Kentucky Hybrid Corn Performance Test
10/30/2008 (new)

| PR-569
2,750 printed copies | 28 pages | - | - | PDF: 380 kb


Seed and Seedling Diseases of Corn
10/1/2008 (minor revision)

Corn seeds and seedlings are susceptible to infection by a number of soilborne fungi. When planted into cool, wet soils, seeds may decay before or after germination. Affected plants that survive past the seedling stage may go on to produce an ear if nodal roots develop normally, although stunting and reduced ear size can occur as a result of seedling diseases. Severely affected plants may die during stressful weather as the result of an inadequate root system. | PPFS-AG-C-2
web only | 2 pages | 430 words | 1 download | PDF: 160 kb


Diseases of Concern in Continuous Corn
10/1/2008 (minor revision)

Although most corn in Kentucky is planted following a rotation to other crops, individual producers are often interested in planting corn following corn. In these situations, one of the main concerns voiced by producers is increased pressure from diseases, and rightfully so. Crop rotation is one of the most fundamental disease control practices available. Rotating to other crops deprives pathogens (disease-causing microorganisms) of a food source and exposes them to "starvation." Furthermore, as infested crop residues decompose, pathogens are exposed to antagonism by native soil microbes. These mechanisms have the effect of naturally reducing the populations of many pathogens in the soil. | PPFS-AG-C-1
web only | 4 pages | 1,434 words | 2 downloads | PDF: 233 kb


Ornamental Corn Production
7/10/2008 (minor revision)

| HO-81
1,000 printed copies | 12 pages | - | 28 downloads | PDF: 1,234 kb


2007 Kentucky Hybrid Corn Performance Test
11/1/2007 (new)

| PR-552
3,500 printed copies | 24 pages | - | - | PDF: 360 kb


Replanting Options for Corn
7/27/2007 (new)

Evaluating damaged corn stands and determining when to replant is often a difficult task. Survival, health, and expected yield of the current stand must be weighed against replanting costs, additional management, and expected yield of a replanted crop. The options are rarely clear-cut because damaged corn is rarely uniform throughout the field. The following information will help when making evaluations and management decisions. | AGR-195
1,000 printed copies | 6 pages | - | 17 downloads | PDF: 194 kb


Estimating Hail Damage in Corn
7/27/2007 (new)

Hail is precipitation in the form of irregular shapes of ice. Hail can shred leaves off corn plants, bruise stalks, and turn a beautiful field of corn into bare stalks with a few ragged leaves. The initial sight of hail damage is sickening to any farmer. Small corn, with the growing point below the soil surface (see corn staging below) is highly tolerant to hail damage. As the growing point moves above the soil surface and the corn plant gets closer to tasseling, corn becomes more susceptible to hail damage. Corn is most susceptible to hail damage from the period just prior to tasseling through early milk. Once corn passes the early milk stage, it becomes more tolerant to hail damage. | AGR-194
1,000 printed copies | 4 pages | - | 2 downloads | PDF: 170 kb


Evaluating Flood Damage in Corn
7/27/2007 (new)

| AGR-193
1,000 printed copies | 2 pages | - | 4 downloads | PDF: 160 kb


Evaluating Early Season Frost Damage in Corn
7/27/2007 (new)

| AGR-192
1,000 printed copies | 2 pages | - | 2 downloads | PDF: 160 kb


2006 Kentucky Hybrid Corn Performance Test
11/2/2006 (new)

| PR-535
3,500 printed copies | 28 pages | - | 1 download | PDF: 377 kb


Producing Corn for Silage
3/20/2006 (minor revision)

| AGR-79
2,000 printed copies | 8 pages | - | 11 downloads | PDF: 332 kb


Estimating Corn Yields
1/7/2006 (new)

| AGR-187
2,000 printed copies | 2 pages | - | 15 downloads | PDF: 135 kb


2005 Kentucky Hybrid Corn Performance Test
11/30/2005 (new)

| PR-518
3,500 printed copies | 28 pages | - | - | PDF: 370 kb


Late-Season Frost Damage to Corn Grown for Silage
1/30/2005 (new)

| AGR-183
1,000 printed copies | 2 pages | - | - | PDF: 135 kb


2004 Kentucky Hybrid Corn Performance Test
11/21/2004 (new)

| PR-503
3,500 printed copies | 32 pages | - | - | PDF: 538 kb


Corn Stalk Nitrate Test
8/27/2004 (new)

| AGR-180
3,000 printed copies | 2 pages | - | 8 downloads | PDF: 136 kb


Grazing Corn: an Option for Extending the Grazing Season in Kentucky
7/15/2004 (reprinted)

| ID-152
3,000 printed copies | 4 pages | - | 16 downloads | PDF: 266 kb


2003 Kentucky Hybrid Corn Performance Test
11/15/2003 (new)

| PR-485
8,000 printed copies | 30 pages | - | - | PDF: 578 kb


2002 Kentucky Hybrid Corn Performance Test
11/1/2002 (new)

| PR-467
8,000 printed copies | 32 pages | - | - | PDF: 200 kb


2001 Kentucky Hybrid Corn Performance Test
11/7/2001 (new)

| PR-449
8,000 printed copies | 32 pages | - | - | PDF: 190 kb


A Comprehensive Guide to Corn Management in Kentucky
9/30/2001 (new)

The corn grown in Kentucky is used mainly for livestock feed and as a cash crop. As a cash crop sold from the farm, corn ranks third behind tobacco and soybeans but is the number one row crop in terms of acreage. Because the cost of producing an acre of corn is high and the value per bushel has declined in recent years, producers must manage and market their corn crop more carefully for adequate profits. The goal of this publication is to serve as a guide for corn production strategies that focus on efficient use of resources and provide the principles and practices for obtaining maximum, profitable corn yields. | ID-139
7,500 printed copies | 64 pages | 37,214 words | 52 downloads | PDF: 639 kb


2000 Kentucky Hybrid Corn Performance Test
11/13/2000 (new)

| PR-434
8,000 printed copies | 30 pages | - | - | PDF: 587 kb


1999 Kentucky Hybrid Corn Performance Test
11/30/1999 (new)

| PR-421
8,000 printed copies | 32 pages | - | 1 download | PDF: 474 kb


1998 Hybrid Corn Performance Test
11/1/1998 (new)

| PR-407
8,000 printed copies | 32 pages | - | 3 downloads | PDF: 168 kb


1997 Hybrid Corn Variety Trials
11/1/1997 (new)

| PR-397
10,000 printed copies | 32 pages | - | - | PDF: 174 kb


1996 Hybrid Corn Variety Trials
12/1/1996 (new)

| PR-388
10,000 printed copies | 28 pages | - | 3 downloads | PDF: 235 kb


Cutworm Management in Corn
3/1/1994 (reprinted)

| ENT-59
1,500 printed copies | 4 pages | - | 2 downloads | PDF: 175 kb


Managing Slowly Permeable Soils for Tobacco and Corn Production in Kentucky
1/1/1990 (new)

| AGR-143
5,000 printed copies | - | - | 2 downloads | HTML: 16 kb


Using Drought-Stressed Corn Harvesting, Storage, Feeding, Pricing and Marketing
8/1/1988 (new)

| ID-86
7,500 printed copies | - | - | 1 download | HTML: 32 kb


Fertilization and Liming for Corn
2/1/1983 (new)

| AGR-105
10,000 printed copies | - | - | 10 downloads | HTML: 21 kb