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ARS Home » Plains Area » Bushland, Texas » Conservation and Production Research Laboratory » Livestock Nutrient Management Research » Research » Publications at this Location » Publication #346025
Research Project: Improved Practices to Conserve Air Quality, Maintain Animal Productivity, and Enhance Use of Manure and Soil Nutrients of Cattle Production Systems for the Southern Great Plains

Location: Livestock Nutrient Management Research

Title: Nutrient content of wheat and corn in response to the application of urea and the urease inhibitor NPBT

Author
item HEFLEY, CHALONE - West Texas A & M University
item RHOADES, MARTY - West Texas A & M University
item BLASER, BROCK - West Texas A & M University
item Parker, David

Submitted to: ASABE Annual International Meeting
Publication Type: Proceedings
Publication Acceptance Date: 3/1/2017
Publication Date: 7/17/2017
Citation: Hefley, C., Rhoades, M., Blaser, B., Parker, D.B. 2017. Nutrient content of wheat and corn in response to the application of urea and the urease inhibitor NPBT. ASABE Annual International Meeting. Paper No. 1701426. July 16-19, 2017, Spokane, Washington. p.1-11. https://doi: 10.13031/aim.201701426

Interpretive Summary:

Technical Abstract: A field study was conducted to evaluate the effects of the addition of two different urease inhibitors on the volatilization of ammonia from top dressed ammonia sources on winter wheat and dent corn. Two commercial urease inhibitors (NY and AG) were tested. Treatments included compost, compost+NY, urea, urea+NY, urea+AG, or control (no fertilizer). Total nitrogen (N) concentrations in wheat straw ranged from 0.64 percent in the control to 1.36 percent in urea+NY. Total N concentrations in wheat grain ranged from 2.09 percent in the control to 3.52 percent in urea+NY. Similarly, N concentrations in the corn stover ranged from 0.81 percent in compost to 1.80 percent in urea+AG. Total P concentrations in wheat straw ranged from 0.08 percent in the control to 0.17 percent in urea+NY. Total P concentrations in wheat grain ranged from 0.47 percent in the control to 0.57 percent in compost+NY. In field conditions, while the application of urea fertilizer greatly increased N concentrations in wheat and corn, the addition of NBPT to urea before field application did not significantly increase N concentrations over that of urea alone.