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Life Sciences Commons

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

Environmental Sciences

2014

Iowa State Research Farm Progress Reports

Agricultural and Biosystems Engineering

Articles 1 - 2 of 2

Full-Text Articles in Life Sciences

Diesel Fuel Consumption During Field Operations, H. Mark Hanna, Dana D. Schweitzer Jan 2014

Diesel Fuel Consumption During Field Operations, H. Mark Hanna, Dana D. Schweitzer

Iowa State Research Farm Progress Reports

Direct energy expenses (diesel, gasoline, propane, electricity) total more than $1 billion annually for Iowa’s farmers. Farm management techniques such as adjusting tractor gear and throttle settings or reducing tillage depths can reduce diesel fuel consumption for row crop production. This study is being conducted over multiple years to measure the effects of energy management techniques on tractor fuel consumption during spring and fall field operations.


Impact Of Liquid Swine Manure Application And Cover Crops On Groundwater Quality, Carl H. Pederson, Matthew J. Helmers, Rameshwar S. Kanwar, Antonio P. Mallarino Jan 2014

Impact Of Liquid Swine Manure Application And Cover Crops On Groundwater Quality, Carl H. Pederson, Matthew J. Helmers, Rameshwar S. Kanwar, Antonio P. Mallarino

Iowa State Research Farm Progress Reports

The primary objective of this project was to determine the impact of appropriate rates of swine manure applications to corn and soybeans based on nitrogen and phosphorus requirements of crops, soil phosphorus accumulation, and the potential of nitrate and phosphorus leaching to groundwater. Another purpose of this long-term experimental study was to develop and recommend appropriate manure and nutrient management practices to producers to minimize water contamination potential and enhance the use of swine manure as fertilizer. A third component of this study was to determine the potential effects of rye as a cover crop to reduce nitrate loss to ...