Soil quality and fertilizer use rates among smallholder farmers in western Kenya
Marenya, P. P.
Barrett, C. B.
MetadataShow full item record
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 in their analyses on fertilizer input use. However, increasing research indicates that nonmarket factors are also important determinants. The purpose of this study is to validate the accuracy of a soil carbon content (SCC) threshold in a switching regression model to determine fertilizer use in 260 farm households in Kenya. The model revealed that, in addition to market factors, fertilizer use was dependent upon SCC, and improved market level factors were less likely to increase its use in low SCC households. These results suggest that SCC improvement and favorable fertilizer market conditions must occur in tandem.
Showing items related by title, author, creator and subject.
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. ...
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 ...
IFA; Food and Agriculture Organization (Rome: FAO and IFA (International Fertilizer Industry Association), 2000)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, ...