Numbered Publications: Plant and Soil Sciences
PR-815: 2022 Kentucky Hybrid Corn Performance Test
Cam Kenimer, Chad Lee, Dalton Mertz, Phillip Shine | Nov. 2, 2022 (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.
ID-217: Forage-Related Disorders in Cattle: Nitrate Poisoning
Michelle Arnold, Jeff Lehmkuhler, Megan Romano, Ray Smith | Oct. 24, 2022 (Minor Revision)
Nitrates are natural constituents of all plants. Under normal conditions, plants take up nitrate through their roots and transport it to the leaves for use in photosynthesis. However, photosynthesis decreases under adverse environmental conditions (e.g., drought; leaf damage due to disease, hail, frost, insects, or herbicides; cool and cloudy weather; and other plant stressors). When photosynthesis is reduced, nitrate transportation to the leaves slows also. Potentially toxic nitrate concentrations can remain in the lower stalks and stems.
AGR-267: Ordering/Casing Burley and Dark Tobacco - Post-Curing Management Practices
Andy Bailey, Bob Pearce | Sep. 8, 2022 (New)
Market preparation of burley and dark tobacco involves removing cured tobacco from the curing facilities (takedown), removing the stalks from the stick (bulking), removing cured leaves from tobacco stalks (stripping) and packaging for the market (baling). These processes can only be performed when cured leaves are sufficiently pliable to avoid breakage.
AGR-50: Lawn Establishment in Kentucky
Gregg Munshaw | Jul. 29, 2022 (Minor Revision)
The methods you use, the grass you select and the time of year that you plant your lawn will often determine the quality and ease of maintenance. When it comes to establishing a new lawn, the key is to do everything properly from the start so you will not have to try to fix the lawn once it is established.
PR-813: 2022 Kentucky Small Grain Variety Performance Trial
Bill Bruening, John Connelly, Gene Olson, Phillip Shine, Sandy Swanson, Dave Sanford | Jul. 12, 2022 (New)
The objective of the Kentucky small grain variety performance trial is to evaluate varieties of wheat, oat, barley, triticale, and cereal rye that are commercially available or may soon be available to Kentucky farmers. New varieties continually are being developed by agricultural experiment stations and commercial firms. Annual evaluation of small grain varieties and selections provides farmers, seed producers, and other agricultural workers with current information to help them select the varieties best adapted to their localities and individual requirements.
AGR-266: Chemical Topping of Burley Tobacco
Andy Bailey, Bob Pearce | Jun. 17, 2022 (New)
Pastures for sheep and goats are fertilized to ensure a reliable supply of energy, protein, and other nutrients for a long season of grazing. Management of plant nutrients maintains a balance of improved grasses and legumes and improves forage species competitiveness with many pasture weeds. The most important part of obtaining fertilizer recommendations is collecting a representative soil sample to send to the lab.
ID-2: Guide to Plants of Kentucky Potentially Poisonous to Livestock
Michelle Arnold, J.D. Green, Megan Romano | Apr. 22, 2022 (Minor Revision)
Poisonous plants are responsible for considerable losses to farmers and stockmen in Kentucky. Many cases of plant poisoning are never diagnosed or even suspected. There are nearly 100 different species of plants growing in Kentucky that under certain conditions may be poisonous to livestock, although only one third of these are likely to cause serious trouble. The primary purpose of this publication is to enable individuals to recognize, at sight, some plants which are known to be dangerously poisonous, and to have knowledge of those additional plants, which, under certain conditions, may cause trouble.
PR-809: 2021 Annual Grass Report: Warm Season and Cool Season (Cereals)
Bill Bruening, Jimmy Henning, Gene Olson, Ray Smith, Chris Teutsch | Dec. 21, 2021 (New)
Summer annual grasses provide an important forage crop option for producers in Kentucky. These grasses are mainly used as emergency or supplemental hay and pasture crops, but little information is available on their yield potential. The purpose of this publication is to summarize the University of Kentucky 2008-2021 forage yield trials with sudangrass, sorghum/sudangrass, millets, teff, and cereal crops. Cool season annual grasses (specifically cereal crops) are also used as forages crops for hay, baleage or grazing. The cereal crops used in this report are wheat (Triticum aestivum), rye (Secale cereale), oats (Avena sativa) and triticale (Triticum secale).
PR-810: 2021 Long-Term Summary of Kentucky Forage Variety Trials
Jimmy Henning, Gene Olson, Ray Smith, Chris Teutsch | Dec. 21, 2021 (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 twenty years.
PR-807: 2021 Cool-Season Grass Grazing Tolerance Report
Joao Costa, Jimmy Henning, Gene Olson, Tim Phillips, Ray Smith, Chris Teutsch | Dec. 7, 2021 (New)
Cool-season forages such as tall fescue, orchardgrass, and Kentucky bluegrass are the primary pasture grasses in Kentucky. Other species such as perennial ryegrass and festulolium can also 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 growing season. Overgrazing is not a recommended practice, but is done in these studies to determine how different varieties perform under conditions that are worse than occur during the life of a typical pasture. Varieties are primarily rated for percent survival but data on seedling vigor and grazing preference are also presented.