AGR-202: Corn Growth Stages and Growing Degree Days: A Quick Reference Guide

Chad Lee | Sep. 13, 2011 (New)

Corn growth stages are based on the leaf collar method, where fully emerged leaves (leaf collar visible) are used to stage vegetative development. Growing degree days (GDDs) are used to relate temperature to corn growth and development.

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AGR-203: Improving the Productivity of Landscapes with Little or No Topsoil

Edwin Ritchey | Aug. 16, 2011 (New)

Landscapes with little or no topsoil can make it difficult to produce a garden, lawn, or other plants. Topsoil, dark in color compared to the underlying soil, is the part of a soil that is most biologically active, nutrient rich, and easily managed. It also is usually more easily worked than underlying soil, supplies most of the plant's water and nutrients, and is generally best for plant growth.

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AGR-201: Switchgrass for Biomass Production in Kentucky

Laura Schwer, Kenton Sena, Ray Smith | Mar. 14, 2011 (New)

Switchgrass (Panicum virgatum L.) is a warm-season, perennial bunch-type grass native to the North American Tallgrass Prairie that has been investigated as a bioenergy crop due to its adaptation to a wide range of environmental conditions and soil types as well as its high stable yields. Switchgrass is recommended for soil conservation and wildlife habitat in both monoculture and in mixed stands of native warm-season grasses and forbs as well as for summer grazing in pasture systems and as a hay crop for cattle.

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AGR-191: Using a Grazing Stick for Pasture Management

Adam Probst, Ray Smith | May. 18, 2010 (Minor Revision)

Good management of livestock feeding enterprises requires an understanding of feed inventories and their use. This publication is intended to help producers meet animal forage needs in a rotational grazing system by mastering the use of a grazing stick to estimate pasture yield and pasture allocation.

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AGR-185: Nitrogen Transformation Inhibitors and Controlled-Release Urea

Lloyd Murdock, Greg Schwab | Apr. 21, 2010 (Major Revision)

The soaring cost of fossil fuels is an indicator that nitrogen fertilizer prices are going to remain high for the foreseeable future. With higher N prices, many producers are trying to evaluate the usefulness of several N additive products in their production systems. High N prices make these products more attractive because it takes fewer pounds of saved N to offset the price of the additive. Producers should have a good understanding of how these products work in order to make informed decisions regarding their use.

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AGR-26: Renovating Hay and Pasture Fields

Garry Lacefield, Ray Smith | Apr. 8, 2009 (Minor Revision)

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AGR-145: Warm Season Perennial Grasses for Forages in Kentucky

Tom Keene, Garry Lacefield, Ray Smith | Mar. 10, 2009 (Minor Revision)

Native warm-season perennial grasses are well adapted for production in Kentucky's climate and soils. In this publication, native warm-season perennial grasses that have the greatest forage potential for Kentucky are described. Management techniques necessary to establish stands and keep them productive are also discussed.

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AGR-197: Compaction, Tillage Method, and Subsoiling Effects on Crop Production

Dottie Call, John James, Lloyd Murdock | Jan. 11, 2008 (New)

No-tillage is the preferred method of crop production for most Kentucky farmers. No-tillage has been proven to increase soil quality and decrease the risk of soil compaction as compared to crop production using annual tillage. However, with the use of heavy farm equipment, soil compaction is always a threat with either tillage or no-tillage. The possibility of soil compaction and its effect on crop production is a constant concern to
many farmers using no-tillage. If soil compaction occurs, is there a difference between the two tillage systems on how it affects crop production and the recovery of the soil with and without subsoil tillage? The following study was conducted to help producers and advisors understand soil compaction and its effects on corn and soybean production as well as the ability of the two tillage systems to recover from soil compaction.

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AGR-17: Double-Cropping Land for Silage Production

Chad Lee, Lloyd Murdock, Greg Schwab | Oct. 31, 2007 (Minor Revision)

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AGR-196: Double Crop Curing Dark Fired Tobacco

Andy Bailey | Sep. 18, 2007 (New)

Double crop curing is the practice of curing two crops of tobacco in the same barn and growing season. The practice of double crop curing has been utilized by some dark-fired tobacco growers for several years but has increased in recent years as growers have attempted to consolidate operations a nd incre a se efficienc y of production. Tobacco buying companies have started accepting the crop earlier than in the past to better accommodate this practice.