Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

Soil Science

1994

Corn

Articles 1 - 3 of 3

Full-Text Articles in Entire DC Network

Control Of Rodents In No-Till Corn, Lloyd W. Murdock Jan 1994

Control Of Rodents In No-Till Corn, Lloyd W. Murdock

Soil Science News and Views

The prairie vole is probably the primary rodent that reduces no-till crop plant stands in Kentucky. Because the vole requires a full canopy cover for protection from predators, established grass or legume sod fields and field borders (including wheat or rye stubble, set-aside and cover crop seedings) provide an ideal habitat.


An Estimate Of The Source And Uptake Of Nitrogen In Continuous No-Till Com Grain Production, Kenneth L. Wells Jan 1994

An Estimate Of The Source And Uptake Of Nitrogen In Continuous No-Till Com Grain Production, Kenneth L. Wells

Soil Science News and Views

The U.S. Environmental Protection Agency (EPA) has established a maximum nitrate nitrogen (NO3-N) content of 10 parts per million (ppm) for safe drinking water. Because of this, the effect of commercial nitrogen (N) fertilizers in agricultural production as a contributor of NO3-N to surface and groundwater is now being widely examined. Since corn production in the US is the largest single source of fertilizer N use, averaging perhaps 100-150 lbs N/A on the 70-80 million acres of corn produced annually, an understanding of N utilization and losses in corn production is helpful in determining the role …


Estimated Nutrient Content And Uptake By Kentucky's Crops, Kenneth L. Wells, William O. Thom Jan 1994

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 …