Numbered Publications: Plant and Soil Sciences
AGR-227: Identifying Canola Growth Stages
Carrie Knott | Feb. 6, 2017 (New)
To effectively manage canola in Kentucky, the ability to identify key developmental growth stages is important. The most common canola growth stage system describes developmental stages. Several canola growth stages are important for Kentucky producers to recognize for optimal crop management and to maximize grain yield and profitability.
AGR-225: Turfgrass Weed Control for Professionals, 2017
Gregg Munshaw | Jan. 19, 2017 (New)
This newly expanded guide provides weed identification and control information that turfgrass professionals can use to develop effective weed control programs for golf courses, athletic fields, sod farms, lawns, and other turfgrass systems. The recommendations apply to the majority of the United States, with input from experts in Illinois, Indiana, Iowa, Kansas, Kentucky, Michigan, Minnesota, Missouri, Nebraska, New York, Ohio, and Wisconsin. Available for purchase from Purdue University.
AGR-226: Identification and Control of Henbit and Purple Deadnettle
Mike Barrett, Gregg Munshaw | Dec. 30, 2016 (New)
Most of the winter annual broadleaf weeds are distinguishable from each other and thus fairly easy to key out or identify. However, there are two that show up each spring that often get people scratching their heads as to which is which--is it purple deadnettle? Or is it henbit? There are several similarities between these weeds--both are members of the mint family, both have square stems, both have sparsely hairy oval- to egg-shaped leaves, leaves of both are opposite, and both have small purple flowers that appear in the axils of the upper leaves during the spring.
PR-710: 2016 Red and White Clover Report
Gene Olson, Ray Smith | Dec. 13, 2016 (New)
Red clover (Trifolium pratense L.) is a high-quality, short-lived, perennial legume used in mixed or pure stands for pasture, hay, silage, green chop, soil improvement, and wildlife habitat. This species is adapted to a wide range of climatic and soil conditions. Stands of improved varieties generally are productive for 2.5 to 3 years, with the highest yields occurring in the year following establishment. Red clover is used primarily as a renovation legume for grass pastures and hay fields. This report provides current yield data on red and white clover varieties included in yield trials in Kentucky as well as guidelines for selecting clover varieties.
PR-709: 2016 Alfalfa Report
Gene Olson, Ray Smith | Dec. 13, 2016 (New)
Alfalfa (Medicago sativa) has historically been the highestyielding, highest-quality forage legume grown in Kentucky. It is an important part of Kentucky's cash hay enterprise and is an important component in dairy, horse, beef, and sheep diets. Choosing a good variety is a key step in establishing a stand of alfalfa. The choice of variety can impact yield, thickness of stand, and persistence. This report provides yield data on alfalfa varieties included in current yield trials in Kentucky as well as guidelines for selecting alfalfa varieties.
PR-720: 2016 Long-Term Summary of Kentucky Forage Variety Trials
Gene Olson, Ray Smith | Dec. 12, 2016 (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-722: 2016 Kentucky Soybean Performance Tests
Joshua Duckworth, Claire Venard | Dec. 9, 2016 (New)
The Kentucky Soybean Variety Performance Tests are conducted to provide an unbiased and objective estimate of the relative performance of soybean varieties sold 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 2016 tests were entered by soybean growers, commercial companies, and state and federal institutions.
PR-719: 2016 Annual Grass Report: Warm Season and Cool Season (Cereals)
Bill Bruening, Gene Olson, Ray Smith | Dec. 6, 2016 (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-714: 2016 Annual and Perennial Ryegrass and Festulolium Report
Gene Olson, Tim Phillips, Ray Smith | Dec. 5, 2016 (New)
Annual ryegrass (Lolium multiflorum) and perennial ryegrass (Lolium perenne) are high-quality, productive, cool-season grasses used in Kentucky. Both have exceptionally high seedling vigor and are highly palatable to livestock. In Kentucky, winter survival can be an issue for many annual ryegrass varieties, so before planting, review winter survival results in this publication. The severe winter of 2013-2014 showed those varieties that are not adapted to Kentucky. Festuloliums are hybrids between various fescues and ryegrasses with higher quality than tall fescue and improved stand survival over perennial ryegrass. Their use in Kentucky is still limited since they do not survive as long as tall fescue but some of the newer varieties are more adapted to Kentucky environmental conditions. This report provides current yield data on annual and perennial ryegrass varieties in trials in Kentucky as well as guidelines for selecting varieties, as well as summaries of all annual and perennial ryegrass and festulolium varieties tested in Kentucky for the last 15 years.
PR-713: 2016 Timothy and Kentucky Bluegrass Report
Gene Olson, Tim Phillips, Ray Smith | Dec. 5, 2016 (New)
Timothy (Phleum pratense) is the fourth most widely sown cool-season perennial grass used in Kentucky for forage--after tall fescue, orchardgrass, and Kentucky bluegrass. It is a late-maturing bunchgrass that is primarily harvested as hay, particularly for horses. It also can be used for grazing or wildlife habitat. Management is similar to that for other cool-season grasses. Kentucky bluegrass (Poa pratensis) is a high-quality, highly palatable, long-lived pasture plant with limited use for hay. It tolerates close, frequent grazing better than most grasses. It has low yields and low summer production and becomes dormant and brown during hot, dry summers. Kentucky bluegrass is slow to establish. This report provides maturity and yield data on timothy and Kentucky bluegrass varieties included in yield trials in Kentucky.