Maize Temporal Yield Variability under Long‐Term Manure and Fertilizer Application: Fractal Analysis
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A long-term study was established in 1912 in western Nebraska as part of a rotation study. In 1953, each plot was divided into manure (27 Mg ha-1annually) and no-manure sections to which fertilizer treatments were applied annually. Environmental factors like hail, fall freezing, and temperature variation during the growing season had a significant effect on the grain yield over the years. Although management practices can reduce temporal grain yield variability in some crops, variations in environmental factors in this study were great enough to dominate the yearly maize grain yield, regardless of soil fertility amendments. -from Authors
author list (cited authors)
Eghball, B., Power, J. F., Binford, G. D., Baltensperger, D. D., & Anderson, F. N.