Fertilizers and their use: A pocket guide for extension officers, fourth edition
Food and Agriculture Organization
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This handbook was prepared originally for use by extension officers working for the FAO Fertilizer Programme. The first edition was published in 1965, third edition was published in 1978, reprinted in 1986. For this new, 2000 edition, much of the 1978 text has been completely revised. Information on new technical developments and knowledge has been incorporated. The handbook explains the need for mineral fertilizers, their role in plants and the soil characteristics which are relevant to fertilization. A new section provides general recommendations for selected crops.
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Crews, T.E.; Peoples, M.B. (Elsevier B.V., 2003)During the 20th century, farmers around the world replaced legume rotations and other traditional sources of nitrogen (N) fertility with synthetic N fertilizers. A sizable percentage of the human population now depends on ...
Wallace, M.B.; Knausenberger, W.I. (Washington, D.C.: USAID, 1997)The objective of this review is to synthesize the state of knowledge regarding the positive and potential negative impacts of fertilizer use in sub-Saharan Africa (SSA), in the context of USAID and other assistance programs. ...
Marenya, P.P.; Barrett, C.B. (International Association of Agricultural Economists, 2009)Low fertilizer use perpetuates the slow yield growth in Sub Saharan Africa (in comparison to Asia and Latin America) as well as subsequent rates of hunger and malnutrition. Current models use primarily market-level factors ...