Ten-year study of the effect of fertilizers on the soluble plant food in the soil and on the crop yield
Ellett, W.B., Hill, H.H.
Ten-year study of the effect of fertilizers on the soluble plant food in the soil and on the crop yield - Virginia 1917 - 45-72 p. - Fertilizers, Plant, Food, Soil, Crop, Yield Virginia Agricultural Experiment Station. Technical Bulletin No. 13 .
Ten-year study of the effect of fertilizers on the soluble plant food in the soil and on the crop yield - Virginia 1917 - 45-72 p. - Fertilizers, Plant, Food, Soil, Crop, Yield Virginia Agricultural Experiment Station. Technical Bulletin No. 13 .