ID-143: Rotational Grazing

Roy Burris, Bob Coleman, Jimmy Henning, Garry Lacefield, Jeff Lehmkuhler, Ray Smith | Nov. 21, 2016 (Reprinted)

A rotational grazing program can generally be defined as use of several pastures, one of which is grazed while the others are rested before being regrazed. Continuous grazing is the use of one pasture for the entire grazing season.

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PR-718: 2016 Cool-Season Grass Horse Grazing Tolerance Report

Laurie Lawrence, Gene Olson, Tim Phillips, Ray Smith | Nov. 18, 2016 (New)

Cool-season grasses such as Kentucky bluegrass, tall fescue, and orchardgrass are dominant pasture grasses for horses in Kentucky. Variety evaluations for yield have been carried out for many years, but little work has been done to establish the effect of variety on persistence when subjected to close, continuous grazing by horses. The purpose of this report is to summarize current research on the grazing tolerance of varieties of tall fescue, orchardgrass, and other species when subjected to continuous heavy grazing pressure by horses within the grazing season. The main focus will be on stand survival.

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PR-717: 2016 Cool-Season Grass Grazing Tolerance Report

Joey Clark, Gene Olson, Tim Phillips, Ray Smith | Nov. 18, 2016 (New)

Cool-season grasses such as tall fescue, orchardgrass, and Kentucky bluegrass are the primary pasture grasses in Kentucky. Other species such as perennial ryegrass, festulolium, and the brome grasses can be used in pasture systems. Little is known about the effect of variety on the grazing tolerance of these cool-season grass species. The purpose of this report is to summarize current research on the grazing tolerance of varieties of tall fescue, orchardgrass, perennial ryegrass, and other species when they are subjected to continuous, heavy grazing pressure by cattle within the grazing season. The main focus will be on plant stand survival.

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PR-715: 2016 Alfalfa Grazing Tolerance Report

Joey Clark, Gene Olson, Ray Smith | Nov. 17, 2016 (New)

Alfalfa (Medicago sativa) is the highest-yielding, highest-quality forage legume grown in Kentucky. It forms the basis of Kentucky's cash hay enterprise and is an important component in dairy, horse, beef, and sheep diets. Recent emphasis on its use as a grazing crop and the release of grazing-tolerant varieties have raised the following question: Do varieties differ in tolerance to grazing? We have chosen to use the standard tolerance test recommended by the North American Alfalfa Improvement Conference. This test uses continuous heavy grazing to sort out differences in grazing tolerance in a relatively short period of time. This report summarizes research on the grazing tolerance of alfalfa varieties when subjected to continuous heavy grazing pressure during the grazing season.

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PR-716: 2016 Red and White Clover Grazing Tolerance Report

Joey Clark, Gene Olson, Ray Smith | Nov. 17, 2016 (New)

Red clover (Trifolium pratense L.) is a high-quality, short-lived perennial legume that is used in mixed or pure stands for pasture, hay, silage, green chop, soil improvement, and wildlife habitat. White clover (Trifolium repens L.) is a low-growing, perennial pasture legume with white flowers. It differs from red clover in that the stems (stolons) grow along the surface of the soil and can form adventitious roots that may lead to the development of new plants. This report summarizes research on the grazing tolerance of clover varieties when subjected to continuous grazing pressure.

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PR-708: 2016 Kentucky Hybrid Corn Performance Test

Ron Curd, Cam Kenimer, Chad Lee, Brandon Roberts | Oct. 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.

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AGR-224: Identifying Wheat Growth Stages

Carrie Knott | Sep. 30, 2016 (New)

Identifying growth stages of any crop is important to enable timely crop management decisions that maximize yields and profitability. There are several wheat growth stages that are important for Kentucky producers to recognize for optimal crop management and to maximize grain yield and profitability.

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AGR-223: Identifying Soybean Growth Stages

Carrie Knott, Chad Lee | Sep. 30, 2016 (New)

Accurate identification of soybean growth stages is important to maximize grain yield and profitability, because most management decisions are based upon the growth stage of soybean plants within the fields. Key features of soybean growth stages are highlighted within this guide.

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AGR-222: Estimating Carrying Capacity of Cool Season Pastures in Kentucky Using Web Soil Survey

Krista Lea, Ray Smith | Aug. 10, 2016 (New)

While many factors influence how many animals a farm can carry, soil type has a major influence and should be considered when purchasing, leasing, planning, or managing livestock on pastures.

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AGR-221: Wildlife Benefits of Switchgrass Production in Kentucky

Tom Keene, Krista Lea, Laura Schwer, Ray Smith | Jul. 26, 2016 (New)

Switchgrass is a versatile grass that can be utilized for forage or biomass production. Establishing and maintaining switchgrass is also beneficial to many types of wildlife by providing suitable habitat and cover.