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On-farm legume experimentation to improve soil fertility in Zimuto communal area, Zimbabwe: farmer perceptions and feedback

By: Kamanga, B.C.G | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT) Kenya | 7. Proceedings of the Eastern and Southern Africa Regional Maize Conference Nairobi (Kenya) 5-11 Feb 2002.
Contributor(s): Friesen, D.K.|Palmer, A.F.E [eds.] | Shamudzarira, Z [coaut.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: Nairobi (Kenya) KARI|CIMMYT : 2002Description: p. 495-507.ISBN: 970-648-120-6.Subject(s): Crop husbandry | Experimentation | Farmers | Feeding systems | Fertilizer application | Food crops | Mineral content | Yield increases | Zimbabwe | CIMMYT | KARI | Soil fertility AGROVOCDDC classification: 338.16 Summary: A study was conducted in 2000-01 in the semi-arid Zimuto Communal Area in Zimbabwe to compare mineral fertilizer application methods with farmers. Three fertilizer application methods, the flexible Fertilizer Management Package (FMP), the AGRITEX extension method and the FARMER method were compared in 10 farmers. fields. The FMP is a flexible package where N is applied in relation to rainfall and crop growth. Compound D (8: 14:7 NPK) was broadcast when the maize was planted. Ammonium Nitrate (AN) was applied at 10 days after crop emergence, and at 30 days and 60 days in relation to rainfall and crop growth. The AGRITEX package provided Compound D at planting and AN was applied once when the crop reached knee high. In the FARMER practice, fertilizer management was done following the farmers' planned concepts of fertilizer management, and this generally involved little fertilizer and combination with cattle manure. Farmers managed the fields. Results showed high observed Nitrogen Use Efficiency (NUE) values of 80 kg grain per kg N applied at rates below 20 kg N/ha but very low NUEs (- 5 kg of grain per kg of N) with fertilizer rates above 90 kg. The NUEs declined as more N was applied. The FARMER practice was lowest and the FMP being highest. The homestead fields gave highest maize yields. There were no differences between the FMP and Agritex packages on maize yields. Farmer management of the fertilizer packages revealed that extension information on fertilizer management was limited. Farmers tended to modify the packages towards their fertilizer management concepts. Feedback from farmers suggested that the farmers best liked the FMP package, but suggested they will need support to access the N fertilizer it needs. Farmers suggested promoting a simplified FM P package with a maximum of two timings/doses of topdress N fertilizer.Collection: CIMMYT Publications Collection
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Book CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

CIMMYT Publications Collection 338.16 FRI (Browse shelf) 1 Available 2I630188
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A study was conducted in 2000-01 in the semi-arid Zimuto Communal Area in Zimbabwe to compare mineral fertilizer application methods with farmers. Three fertilizer application methods, the flexible Fertilizer Management Package (FMP), the AGRITEX extension method and the FARMER method were compared in 10 farmers. fields. The FMP is a flexible package where N is applied in relation to rainfall and crop growth. Compound D (8: 14:7 NPK) was broadcast when the maize was planted. Ammonium Nitrate (AN) was applied at 10 days after crop emergence, and at 30 days and 60 days in relation to rainfall and crop growth. The AGRITEX package provided Compound D at planting and AN was applied once when the crop reached knee high. In the FARMER practice, fertilizer management was done following the farmers' planned concepts of fertilizer management, and this generally involved little fertilizer and combination with cattle manure. Farmers managed the fields. Results showed high observed Nitrogen Use Efficiency (NUE) values of 80 kg grain per kg N applied at rates below 20 kg N/ha but very low NUEs (- 5 kg of grain per kg of N) with fertilizer rates above 90 kg. The NUEs declined as more N was applied. The FARMER practice was lowest and the FMP being highest. The homestead fields gave highest maize yields. There were no differences between the FMP and Agritex packages on maize yields. Farmer management of the fertilizer packages revealed that extension information on fertilizer management was limited. Farmers tended to modify the packages towards their fertilizer management concepts. Feedback from farmers suggested that the farmers best liked the FMP package, but suggested they will need support to access the N fertilizer it needs. Farmers suggested promoting a simplified FM P package with a maximum of two timings/doses of topdress N fertilizer.

English

0410|AGRIS 0401|AL-Maize Program

Juan Carlos Mendieta

CIMMYT Publications Collection

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