|Author:||Spillman, W. J.|
|Title:||Use of the Exponential Yield Curve in Fertilizer Experiments.|
|Publication info:||Beltsville, MD: U.S. Department of Agriculture, National Agricultural Library, Alternative Farming Systems Information Center
|Rights/Permissions:||Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S.|
Use of the Exponential Yield Curve in Fertilizer Experiments.
Spillman, W. J.
Washington DC: : United States Department of Agriculture, April 1933
Fertilizers Mathematical models
J500 Soil Fertility, Fertilzers, and Manures
X100 Mathematics and Statistics
mathematics and statistics