HENV-402: Water Quality and Nutrient Management at Home

Rick Durham, Brad Lee, Gregg Munshaw, Suzette Walling | Jul. 2, 2019 (New)

Fertilizers and other lawn amendments benefit the residential landscape by providing or supplementing the essential nutrients for plant growth and maintenance. Commercial fertilizers are commonly formulated based on three major nutrients, nitrogen (N), phosphorus (P), and potassium (K) and each plays an important role in plant development. However, improper application of fertilizers and amendments may increase the risk of non-point source pollution of surface and ground waters.

---

PPFS-AG-T-5: Maintaining the Efficacy of Foliar Fungicides for Tobacco Disease Management

Bob Pearce, Emily Pfeufer | Jul. 1, 2019 (Minor Revision)

Management of resistance to fungicides is based on alternating the use of particular modes of action, or FRAC groups, which essentially presents multiple different challenges to the fungal population. Overall, fungi that are naturally resistant to a mode of action are very rare in the environment. Challenging a population with multiple different modes of action will reduce the chance of developing widespread resistance, which will prolong the efficacy of these chemicals.

---

AGR-239: Calibrating Boom Sprayers for Turf Applications

Gregg Munshaw, Travis Shaddox | Mar. 12, 2019 (New)

Calibrating application equipment is something many people avoid because they believe it is too time consuming or that the math involved is too confusing. Calibration, however, is critical. Applying too little can result in poor pest control and can lead to pesticide resistance. Whereas, over applying can be bad for the environment, damage the grass, and wastes money. There are several methods for calibrating sprayers. Choose the one that makes the most sense to you. Three different methods are described below. All these methods are reliable and will provide very similar application accuracy.

---

PR-759: Kentucky Corn Silage Hybrid Performance Report, 2018

Ricky Arnett, Matthew Campbell, Chad Lee, Linda McClanahan, Nick Roy, Julia Santoro, Will Stallard | Dec. 18, 2018 (New)

The objective of the Silage Corn Hybrid Performance Test is to provide unbiased forage yield and quality data for corn hybrids commonly grown for silage in Kentucky.

---

PR-758: 2018 Kentucky Soybean Performance Tests

Claire Venard | Dec. 11, 2018 (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 2018 tests were entered by soybean growers, commercial companies, state and federal institutions. Forty soybean tests were planted in 2018 in Kentucky, at the eight test locations shown below. However, due to weed pressure, one location was discontinued.

---

PR-753: 2018 Annual Grass Report: Warm Season and Cool Season (Cereals)

Bill Bruening, Jimmy Henning, Gene Olson, Ray Smith, Chris Teutsch | Dec. 5, 2018 (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.

---

PR-754: 2018 Long-Term Summary of Kentucky Forage Variety Trials

Jimmy Henning, Gene Olson, Ray Smith, Chris Teutsch | Dec. 5, 2018 (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.

---

PR-752: 2018 Cool-Season Grass Horse Grazing Tolerance Report

Jimmy Henning, Laurie Lawrence, Gene Olson, Tim Phillips, Ray Smith, Chris Teutsch | Nov. 30, 2018 (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.

---

PR-748: 2018 Annual and Perennial Ryegrass and Festulolium Report

Jimmy Henning, Gene Olson, Tim Phillips, Ray Smith, Chris Teutsch | Nov. 27, 2018 (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 15, 16, and 17 show summaries of all annual and perennial ryegrass and festulolium varieties tested in Kentucky for the last 17 years.

---

PR-749: 2018 Alfalfa Grazing Tolerance Report

Joey Clark, Jimmy Henning, Gene Olson, Ray Smith, Chris Teutsch | Nov. 27, 2018 (New)

This report summarizes research on the grazing tolerance of alfalfa varieties when subjected to continuous heavy grazing pressure during the grazing season. Table 5 shows a summary of all alfalfa varieties tested in Kentucky during the last 18 years.