|Authors :||Mehring, Arnon L., Cumings, Glenn A.|
|Title:||Factors Affecting the Mechanical Application of Fertilizers to the Soil.|
|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.|
Factors Affecting the Mechanical Application of Fertilizers to the Soil.
Mehring, Arnon L., Cumings, Glenn A.
Washington DC: : United States Department of Agriculture, April 1930
J500 Soil Fertility, Fertilizers, and Manures