Experiments with nitrogen fertilizers on cotton soils
Skinner, J.J. and Others
Experiments with nitrogen fertilizers on cotton soils - Washington 1934 - 1-28 p. - Experiment , Fertilizers, Cotton, Soil United States Department of Agriculture. Technical Bulletin No. 452 .
Experiments with nitrogen fertilizers on cotton soils - Washington 1934 - 1-28 p. - Experiment , Fertilizers, Cotton, Soil United States Department of Agriculture. Technical Bulletin No. 452 .