[The production of certain food-producing crops : the drought 1984 compared to a normal year (1986), the monthly distribution of the agricultural production and its possible impact on the alimentary strategy : seminar document and debates]

alimentos batata cassava drought food security foods haricot commun kidney beans mais maize mandioca manioc nutritive value papa patate douce pomme de terre potatoes produit alimentaire rwanda seguridad alimentaria sorgho sorghum grain sweet potatoes valeur nutritive valor nutritivo