Numerous investigations in the past have shown that nitrogen fertilizers may exert a rather pronounced stimulative effect upon certain biological soil processes. The results of such a stimulation may prove distinctly beneficial to crop growth and the effects of the treatment may, therefore, be of economic significance.
Proceedings of the Iowa Academy of Science
©1928 Iowa Academy of Science, Inc.
Brown, P.E. and Mendell, F. H.
"Some Biological Effects of Certain Nitrogen Fertilizers,"
Proceedings of the Iowa Academy of Science, 35(1), 87-95.
Available at: https://scholarworks.uni.edu/pias/vol35/iss1/12