The importance of cassava relative to other crops in the cropping system was almost total; cassava was present in 70% of arable fields; maize and beans or peas were each present in 13% of arable fields and all other crops were present in 4%. Cassava was produced mostly for sale, yet it was not as important around market centers as in remote areas because imported rice and wheat products were easily accessible.
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Library ResourceJournal Articles & BooksDecember, 2000Nigeria, Africa, Western Africa
Library ResourceConference Papers & ReportsDecember, 2000Cameroon, Africa, Middle Africa
In sub-Saharan Africa, intensification of agriculture and rational use of arable land are essential for long-term growth (Gros, 1979, Johnston, 1990, Oluf et al., 990). Extensive cultivation methods and the population explosion are pushing the limits of cultivated land every day; deforestation accelerates; the productive capacity of the land is reduced
Library ResourceJournal Articles & BooksDecember, 2000Mexico, Central America
Library ResourceJournal Articles & BooksDecember, 2000United States of America, India, Australia, Egypt
This publication reports on a study of the increase in river salinity and the implemented control programs in five major irrigated basins in the arid zone. The study is limited to salinity.
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