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-198: Sulfur Fertilization in Kentucky

Greg Schwab | Oct. 23, 2008 (New)

There are a lot of misunderstandings regarding sulfur (S) nutrition for Kentucky crops. Sulfur is considered a seconda r y pla nt nutrient because, although the crop requirement for S is relatively large, it is usually found in soil at concentrations adequate for plant growth and yield so that no fertilizer S is needed. For many years, soil S was maintained by atmospheric deposition. However, more stringent clean air standards require greater removal of S during burning of fossil fuels. That fact, along with increasing crop yields, has caused many Kentucky grain producers to begin to question if S fertilization will increase yield.

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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.

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AGR-192: Evaluating Early Season Frost Damage in Corn

Chad Lee | Jul. 27, 2007 (New)

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AGR-195: Replanting Options for Corn

J.D. Green, Jim Herbek, Chad Lee, Jim Martin, Paul Vincelli | Jul. 27, 2007 (New)

Evaluating damaged corn stands and determining when to replant is often a difficult task. Survival, health, and expected yield of the current stand must be weighed against replanting costs, additional management, and expected yield of a replanted crop. The options are rarely clear-cut because damaged corn is rarely uniform throughout the field. The following information will help when making evaluations and management decisions.

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AGR-193: Evaluating Flood Damage in Corn

Jim Herbek, Chad Lee, Lloyd Murdock, Greg Schwab | Jul. 27, 2007 (New)

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AGR-194: Estimating Hail Damage in Corn

Chad Lee | Jul. 27, 2007 (New)

Hail is precipitation in the form of irregular shapes of ice. Hail can shred leaves off corn plants, bruise stalks, and turn a beautiful field of corn into bare stalks with a few ragged leaves. The initial sight of hail damage is sickening to any farmer. Small corn, with the growing point below the soil surface (see corn staging below) is highly tolerant to hail damage. As the growing point moves above the soil surface and the corn plant gets closer to tasseling, corn becomes more susceptible to hail damage. Corn is most susceptible to hail damage from the period just prior to tasseling
through early milk. Once corn passes the early milk stage, it becomes more
tolerant to hail damage.

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AGR-154: Dark Tobacco Sucker Control

Andy Bailey | Jul. 11, 2007 (Minor Revision)