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Effect of rate, placement and source of potassium on yield and mineral content of potatoes and phosphorus forms and equilibria in selected Peruvian soils

Effect of rate, placement and source of potassium on yield and mineral content of potatoes and phosphorus forms and equilibria in selected Peruvian soils

Valverde, Carlos Suarez

Text (1970)

Part of Electronic Theses & Dissertations

$Residual effects of nitrogen fertilizers and lime on fractional distribution of aluminum and associated elements$

Residual effects of nitrogen fertilizers and lime on fractional distribution of aluminum and associated elements

Tantiwiramanond, Darunee

Text (1981)

Part of Electronic Theses & Dissertations