PR-738: 2017 Long-Term Summary of Kentucky Forage Variety Trials

Gene Olson, Ray Smith, Chris Teutsch | Dec. 20, 2017 (New)

Forage crops occupy approximately 7 million acres in Kentucky. Forages provide a majority of the nutrition for beef, dairy, horse, goat, sheep, and wildlife in the state. In addition, forage crops play an environmentally friendly role in soil conservation, water quality, and air quality. There are over 60 forage species adapted to the climate and soil conditions of Kentucky. Only 10 to 12 of these species occupy the majority of the acreage, but within these species there is a tremendous variation in varieties. This publication was developed to provide a user-friendly guide to choosing the best variety for producers based on a summary of forage yield and grazing tolerance trials conducted in Kentucky over the past 12 to 15 years.

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PR-737: 2017 Annual Grass Report: Warm Season and Cool Season (Cereals)

Bill Bruening, Gene Olson, Ray Smith, Chris Teutsch | Dec. 20, 2017 (New)

The major factor in selecting a variety of summer annual grass is yield, both total and seasonal. Growth after first cutting is strongly dependent on available moisture and nitrogen fertilization. Summer annual grasses generally have different characteristics and uses. The major factors in selecting cool season cereal grass varieties are yield, winter survival and regrowth.

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PR-735: 2017 Cool-Season Grass Grazing Tolerance Report

Joey Clark, Gene Olson, Tim Phillips, Ray Smith, Chris Teutsch | Dec. 18, 2017 (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-736: 2017 Cool-Season Grass Horse Grazing Tolerance Report

Laurie Lawrence, Gene Olson, Tim Phillips, Ray Smith, Chris Teutsch | Dec. 13, 2017 (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-733: 2017 Alfalfa Grazing Tolerance Report

Joey Clark, Gene Olson, Ray Smith, Chris Teutsch | Dec. 11, 2017 (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-734: 2017 Red and White Clover Grazing Tolerance Report

Joey Clark, Gene Olson, Ray Smith, Chris Teutsch | Dec. 11, 2017 (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-740: 2017 Kentucky Soybean Performance Tests

Brandon Roberts, Claire Venard | Dec. 7, 2017 (New)

The Kentucky Soybean Variety Performance Tests are conducted to provide an unbiased and objective estimate of the relative performance of soybean varieties commercially available in Kentucky. This information may be used by growers and seed producers to aid in selecting varieties that will give the highest total production in a specific situation. Soybean cultivars in the 2017 tests were entered by soybean growers, commercial companies, state and federal institutions. Forty soybean tests were planted in 2017 in Kentucky, at the eight test locations.

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PR-732: 2017 Annual and Perennial Ryegrass and Festulolium Report

Gene Olson, Tim Phillips, Ray Smith, Chris Teutsch | Dec. 6, 2017 (New)

This report provides current yield data on annual and perennial ryegrass varieties in trials in Kentucky as well as guidelines for selecting varieties. Tables 14, 15, and 16 show summaries of all annual and perennial ryegrass and festulolium varieties tested in Kentucky for the last 17 years. The UK Forage Extension website at www.uky.edu/Ag/Forage contains electronic versions of all forage variety test-ing reports from Kentucky and surrounding states and a large number of other forage publications.

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PR-739: 2017 Fruit and Vegetable Research Report

Doug Archbold, Ty Cato, Steve Diver, Bob Geneve, June Johnston, Dave Lowry, Emily Pfeufer, Chris Smigell, John Snyder, John Strang, Ginny Travis, Joseph Tucker, Dwight Wolfe | Dec. 5, 2017 (New)

Fruit and vegetable production continues to show sustained growth in Kentucky. As the industry grows around a diverse collec-tion of marketing tactics (wholesale, farmers markets, CSAs, and direct to restaurants) as well as various production systems, there continues to be a need for applied practical information to support the industry. The 2017 Fruit and Vegetable Crops re-search report includes results for 16 projects.

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PR-729: 2017 Orchardgrass Report

Gene Olson, Tim Phillips, Ray Smith, Chris Teutsch | Dec. 1, 2017 (New)

This report provides current yield data on orchardgrass varieties included in yield trials in Kentucky as well as guidelines for selecting orchardgrass varieties. Table 11 shows a summary of all orchardgrass varieties tested in Kentucky for the last 15 years. The UK Forage Extension website, at www.uky.edu/Ag/Forage, contains electronic versions of all forage variety testing reports from Kentucky and surrounding states and from a large number of other forage publications.