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Combining 4R Practices Avoids Pollution Swapping
Author(s) -
John Doe
Publication year - 2017
Publication title -
csa news
Language(s) - English
Resource type - Journals
eISSN - 2325-3584
pISSN - 1529-9163
DOI - 10.2134/csa2017.62.1207
Subject(s) - pollution , environmental science , biochemical engineering , business , environmental planning , computer science , engineering , biology , ecology
New research published in the Journal of Environmental Quality examines the effects of N-placement and N-source on corn grain yield, ammonia and N2O emissions. Broadcast urea without inhibitors lost 50% of the applied N (64.4 kg N/ ha), whereas adding a urease and nitrification inhibitor with urea reduced ammonia losses by 64% and injecting UAN reduced losses by 60%. The combination of injection and the two inhibitors was the most effective, virtually eliminating ammonia losses and increasing yields by 19%.