Dumenil, LloydNicholson, R.2021-02-252021-02-251952-03-01https://dr.lib.iastate.edu/handle/20.500.12876/96007<p>Many farmers believe nitrogen fertilizer is rapidly lost from the soil. In some areas it is. But 4 years of tests in Iowa have shown that both nitrogen carry-over and resulting increased yields may be greater than you expect.</p>articleisulib-bepress-aws-west165620169304farmscience/vol6/iss9/3Agriculture