Effect of different colloidal soil materials on the efficiency of superphosphate
Gile, P.L.
Effect of different colloidal soil materials on the efficiency of superphosphate - Washington 1933 - 1-49 p. - Soil United States Department of Agriculture. Technical Bulletin No. 371 .
Effect of different colloidal soil materials on the efficiency of superphosphate - Washington 1933 - 1-49 p. - Soil United States Department of Agriculture. Technical Bulletin No. 371 .