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Unconventional methods of fertilizer placement to reduce losses of fall applied nitrogen
In two field experiments conducted in 1978-79, fall application of incorporated urea, or banded aqua ammonia, produced much less increase in yield and N-uptake than did spring application for barley grain. However, when ...
The rate of oxidation of elemental sulphur fertilizers
Uncropped field experiments were begun in June, 1979, and continued from 12 to 15 weeks after the addition of sulphur fertilizer on three soils, to determine the rate of conversion of elemental sulphur to soluble sulphate. ...