Soil type and soil management factors in hemp production
Vessel, A.J., Black, C.A.
Soil type and soil management factors in hemp production - Iowa 1947 - 384-424 p. - Hemp Production, Soil Iowa Agricultural Experiment Station. Research Bulletin No. 352 .
Soil type and soil management factors in hemp production - Iowa 1947 - 384-424 p. - Hemp Production, Soil Iowa Agricultural Experiment Station. Research Bulletin No. 352 .