Fertilizer guide for food grains in the tropics and subtropics
By: by J. G. de Geus.
Contributors: Centre d'e tude de l'azote.
Publisher: Centre d'Etude de l'Azote
Published: 1970
Place of publication: Zurich
Language: eng
Number of pages: 119
Subjects: Fertilizers.; Grain.; Tropical crops.
Notes: Pre-print of a chapter from the 2d ed. of the author's Fertilizer guide for the tropics and subtropics.  Published on the occasion of the Second World Food Congress, the Hague, June 1970.