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dc.contributor.authorNekesa, P
dc.contributor.authorMaritim, H. K
dc.contributor.authorOkalebo, J. R
dc.contributor.authorWoomer, P. L
dc.identifier.citationP. Nekesa, H. K. Maritim, J. R. Okalebo And P. L. Woomer (1999). Economic analysis of maize–bean production using a soil fertility replenishment product (PREP-PAC) in Western Kenya. African Crop Science Journal, Vol. 7. No. 4, pp. 585-590, 1999en
dc.description.abstractThe Phosphate Rock Evaluation Project (PREP) is testing PREP-PAC, a soil fertility replenishment product specifically designed to ameliorate nutrient-depleted "patches" symptomatic of the worst maize-bean intercrops of smallholders’ fields in western Kenya. PREP-PAC contains two kg Minjingu rock phosphate, 0.2 kg urea, legume seed, rhizobial seed inoculant, seed adhesive and lime pellet, is assembled and is sold for Ksh. 42 (US $ 0.76) and is intended for 25 m2 areas. PREP-PAC was tested on 52 farms in four districts of western Kenya during 1998 and compared with adjacent control plots. Farmers selected either a local bush or climbing variety (cv. Flora) of Phaseolus vulgaris as an intercrop with maize (Zea mays). Use of the combined PREP-PAC and climbing bean package increased maize and bean yields by 0.72 and 0.25 t ha-1, respectively (P < 0.001), resulting in a 161% return on investment. Total revenue from low pH soils (<5.2) was Ksh. 25 for the control and Ksh. 47 for PREP-PAC. In moderate soil pH >(5.3), total revenue was Ksh. 31 for control and Ksh. 68 for PREP-PAC (P < 0.05). Opportunity exists to distribute an affordable soil fertility restoration package among smallhold farmers but the profitability from its use is dependent upon soil conditions and accompanying legume intercrops.en
dc.titleEconomic analysis of maize–bean production using a soil fertility replenishment product (PREP-PAC) in Western Kenyaen
local.publisherFaculty of Agriculture, Moi Universityen
local.publisherDepartment of Soil Science, University of Nairobien

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