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Splitting Nitrogen Applications Reduced Nitrous Oxide Emissions
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/csa2017.62.0210
Subject(s) - nitrous oxide , environmental science , nitrogen , greenhouse gas , oxide , nitrogen oxides , environmental chemistry , materials science , chemistry , engineering , waste management , geology , metallurgy , oceanography , organic chemistry
While many soils in the Upper Midwest of the U.S. are extensively tile drained, substantial cropland remains poorly drained, negatively affecting nitrogen (N) fertilizer use efficiency and possibly degrading the environment. Increasingly, farmers are using split N fertilizer applications, instead of a single early-season application, to enhance fertilizer efficiency and minimize environmental impacts. Despite an intuitive linkage between soil drainage, N fertilizers, and nitrous oxide (N20) emissions, evaluation of N20 emissions of single and split applications under different soil drainage conditions are lacking.