Fertilizers guide for food grains in the tropics and subtropics
De Geus, J.G.
Fertilizers guide for food grains in the tropics and subtropics by J.G. De Geus - Hague Centre d'Etude de I'Azote Zuirch 1970 - 119 p.
Fertilizers
631.8:633(213) / D 278 F
Fertilizers guide for food grains in the tropics and subtropics by J.G. De Geus - Hague Centre d'Etude de I'Azote Zuirch 1970 - 119 p.
Fertilizers
631.8:633(213) / D 278 F