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United States Department of Agriculture

Agricultural Research Service

Research Project: Using Agricultural and Industrial Byproducts to Improve Crop Production Systems and Environment Quality

Location: National Soil Dynamics Laboratory

Title: Evaluation of N products for cotton and corn

Authors
item Mitchell, Charles -
item Watts, Dexter
item Moore, Don -

Submitted to: ASA-CSSA-SSSA Annual Meeting Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: October 21, 2013
Publication Date: October 21, 2013
Citation: Mitchell, C.C., Watts, D.B., Moore, D. 2013. Evaluation of N products for cotton and corn. ASA-CSSA-SSSA Annual Meeting Abstracts. CDROM.

Technical Abstract: Because of high fertilizer N prices, growers are interested in using less expensive sources of N and using fertilizer additives to reduce ammonia volatilization losses from urea sources. An experiment on a Lucedale fine sandy loam (fine-loamy, siliceous, thermic Rhodic Paleudults) in Central Alabama was conducted in 2007 through 2011 to compare traditional and non-traditional sources of N for high-residue, conservation tilled corn and cotton under non-irrigated conditions. Treatments varied slightly each year. Materials evaluated included urea, ammonium nitrate, urea-ammonium sulfate blends, UAN solutions, Agrotain®, Nutrisphere®, ESN®, Nitamin N-fusion®, poultry broiler litter, calcium chloride, and others. Yield differences in N sources were minor and generally would not justify one product over another. Ammonia volatilization losses in the field were measured for 14 d after sidedress application. Most volaltilization occurred within two or three days after application.

Last Modified: 11/24/2014
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