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Fertilizer Guide for the Tropics and Subtropics

J. G. de Geus

出版	Centre d'etude de l'azote, 1973
URL	http://books.google.com.hk/books?id=_udFAAAAYAAJ&hl=&source=gbs_api

註釋

Soils and fertilizers, cereals, sugar crops, root crops, fibre crops, oil crops, stimulants, various crops, fruit crops, commercial vegetable growing, grasses and grassland.