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Full-Text Articles in Physical Sciences and Mathematics
Effect Of Magnesium And Sulfur Fertilization Of Alfalfa, Kenneth L. Wells, James E. Dollarhide
Effect Of Magnesium And Sulfur Fertilization Of Alfalfa, Kenneth L. Wells, James E. Dollarhide
Soil Science News and Views
In response to concerns that high yields of alfalfa need to be fertilized with sulfur (S) because of soil depletion of S and less S entering the soil from atmospheric fallout, studies were conducted during 1998-1999, to test for S response by alfalfa. Additionally, alfalfa was tested for magnesium (Mg) response because previous hay analysis from the study site had shown very low levels of Mg.
Drawdown Of Soil Test Phosphorus And Potassium Levels By Alfalfa, Kenneth L. Wells, James E. Dollarhide
Drawdown Of Soil Test Phosphorus And Potassium Levels By Alfalfa, Kenneth L. Wells, James E. Dollarhide
Soil Science News and Views
Alfalfa hay production removes large amounts of phosphorus (P) and potassium (K) from soils. Because of this, there is always interest in the reduction of soil test phosphorus (STP) and soil test potassium (STK) levels by high-yielding alfalfa. Periodic soil sampling for 2 years during an on-farm· fertilizer study on a high yielding alfalfa field provided an insight into this.
Estimated Nutrient Content And Uptake By Kentucky's Crops, Kenneth L. Wells, William O. Thom
Estimated Nutrient Content And Uptake By Kentucky's Crops, Kenneth L. Wells, William O. Thom
Soil Science News and Views
A commonly asked question by crop producers is, "how many pounds of plant nutrients do my crops take up?" While the absolute answer to this varies by yield and soil fertility, useful estimates can be made from research data to enable a producer to have a "ballpark" value for nutrient up-take by some of the major crops of Kentucky. The following tables contain estimates of nitrogen (N), phosphorus (P),and potassium (K) contained in certain crops and the amount of N, phosphate (P2O5), and potash (K,O) taken up by tobacco, corn, soybeans, wheat, alfalfa hay, clover grass …
Use Of Fluorogypsum To Reduce Subsoil Acidity In A Fragipan Soil, Grant W. Thomas, Gerald R. Haszler
Use Of Fluorogypsum To Reduce Subsoil Acidity In A Fragipan Soil, Grant W. Thomas, Gerald R. Haszler
Soil Science News and Views
In western Kentucky, there are several million acres of fragipan soils which are characterized by both acid subsoils and fragipans which commence at depths of 20 to 30 inches below the soil surface. The combination of subsoil acidity and a fragipan with massive structure impedes root growth and water movement, diminishing, somewhat, the usefulness of the soils for crop production. Alfalfa, a crop which is very sensitive to soil acidity and to poor drainage, was chosen as a test crop to measure the effects of adding fluorogypsum to Sadler silt loam, a soil representative of the fragipan soils found in …
Seedbed Preparation For Fall Seeded Alfalfa, Kenneth L. Wells, J. Kenneth Evans
Seedbed Preparation For Fall Seeded Alfalfa, Kenneth L. Wells, J. Kenneth Evans
Soil Science News and Views
With the increased interest developed during the past few years on production of alfalfa hay for cash sales, the acreage seeded each year has increased • And. although UK forage specialists prefer spring seeding of alfalfa to fall seeding. some growers will and should opt for fall seeding. This is particularly true on fields which have a history of legumes and/or are contaminated with Johnsongrass. Those who do so should begin planning now to have the seedbed prepared for planting by mid-August to mid-September.
Fertilizing Alfalfa For Optimum Yields, William O. Thom
Fertilizing Alfalfa For Optimum Yields, William O. Thom
Soil Science News and Views
Alfalfa is one of the most important forage crops in Kentucky. It is grown on a wide range of soil types, has the ability to produce high yields, and will respond to good management including a sound soil fertility program.
Effect Of Irrigation On Corn, Soybeans And Alfalfa Yields In Kentucky, Lloyd W. Murdock
Effect Of Irrigation On Corn, Soybeans And Alfalfa Yields In Kentucky, Lloyd W. Murdock
Soil Science News and Views
Irrigation is not widely used in Kentucky for two reasons: 1) high average yearly rainfall, and 2) lack of easily accessible and dependable water sources. However, even with the high yearly rainfall, droughts do occur during the growing season. According to past history, they are more likely to occur in West Kentucky than Central Kentucky and least likely to occur in East Kentucky.