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Fertilizer use by maize in response to rainfall regimes

By: Nandwa, S.M | Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico).
Contributor(s): Chege, A.G [coaut.] | Ransom, J.K.|Palmer, A.F.E.|Zambezi, B.T.|Mduruma, Z.O.|Waddington, S.R.|Pixley, K.V.|Jewell, D.C [eds.].
Material type: materialTypeLabelBookAnalytics: Show analyticsPublisher: Addis Ababa (Ethiopia) CIMMYT : 1997ISBN: 92-9146-025-7.Subject(s): Fertilizer application | Fertilizers | Intercropping | Plant response AGROVOC | Rain AGROVOC | CIMMYT | Zea mays AGROVOC | Yields AGROVOCDDC classification: 633.15 Summary: Katumani Composite B and Coast Composite maize varieties were grown as sole crop or intercropped with cowpea at Tunyai and Mtwapa FURP trial sites respectively between 1987 and 1990 in a randomized complete block design with two replications. Tunyai has a bimodal while Mtwapa has a unimodal cropping system. Nitrogen and phosphorus were applied to maize in a four by four factorial experiment. This study found that intercropping had no significant (p > 0.05) effect on maize grain yields at both sites. Grain yield was increased by fertilizer application at Tunyai. There was a significant (p < 0.01) correlation between rainfall and grain yield and fertilizer use efficiency (FUE) with intercropping. At Mtwapa rainfall was not significantly (p > 0.05) correlated to either grain yield or FUE. However, without fertilizer application at Mtwapa, both grain yield and FUE in intercropping were significantly (p < 0.001) correlated to rainfall. Intercropping maize with cowpea is recommended as it does not significantly lower yields, and can increase fertilizer use efficiency.Collection: CIMMYT Publications Collection
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Conference proceedings CIMMYT Knowledge Center: John Woolston Library

Lic. Jose Juan Caballero Flores

 

CIMMYT Publications Collection 633.15 EAS No. 5 (Browse shelf) 1 Available 1Q624172
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Katumani Composite B and Coast Composite maize varieties were grown as sole crop or intercropped with cowpea at Tunyai and Mtwapa FURP trial sites respectively between 1987 and 1990 in a randomized complete block design with two replications. Tunyai has a bimodal while Mtwapa has a unimodal cropping system. Nitrogen and phosphorus were applied to maize in a four by four factorial experiment. This study found that intercropping had no significant (p > 0.05) effect on maize grain yields at both sites. Grain yield was increased by fertilizer application at Tunyai. There was a significant (p < 0.01) correlation between rainfall and grain yield and fertilizer use efficiency (FUE) with intercropping. At Mtwapa rainfall was not significantly (p > 0.05) correlated to either grain yield or FUE. However, without fertilizer application at Mtwapa, both grain yield and FUE in intercropping were significantly (p < 0.001) correlated to rainfall. Intercropping maize with cowpea is recommended as it does not significantly lower yields, and can increase fertilizer use efficiency.

English

9801|AGRIS 9702

Jose Juan Caballero

CIMMYT Publications Collection

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Lunes –Viernes 9:00 am. 17:00 pm. Si tiene cualquier pregunta, contáctenos a CIMMYT-Knowledge-Center@cgiar.org