Maize-bean intercrop response to nutrient application relative to maize sole crop response

Ndungu-Magiroi, K.W. and Wortmann, C.S. and Kibunja, C. and et al, . (2017) Maize-bean intercrop response to nutrient application relative to maize sole crop response. Nutrient Cycling in Agroecosystems, 109 (1). pp. 17-27.

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Maize-bean intercropping is important in sub-Saharan Africa. Maize sole crop (MSC) nutrient response has been much studied but data is scarce for determination of intercrop functions. A procedure for adapting MSC functions for the maize-bean intercrop was developed. Maize sole crop and intercrop responses were near parallel with notable exceptions for P in high potential areas for maize and for K.Mean intercrop bean yield with no nutrient application was about 0.4 Mg ha-1 and increased on average by 24, 11 and -3% with N, P and K application, respectively. Response function coefficients for MSC adjusted with the ratio of bean to maize grain value as the dependent variable accounted for nearly all variation in intercrop response coefficients providing the basis for determining intercrop response functions from MSC functions......

Item Type: Article
Uncontrolled Keywords: Asymptotic functions, Curvilinear to plateau, Economically optimal rate, Net return to fertilizer, Nitrogen, Optimization, Phosphorus, Potassium, Response functions, Yield equivalent
Author Affiliation: Kenya Agricultural and Livestock Research Organization (KALRO) Kitale, P.O. Box 450-30200, Kitale, Kenya
Subjects: Plant Protection
Divisions: Maize
Depositing User: Mr B Krishnamurthy
Date Deposited: 01 Dec 2017 08:54
Last Modified: 01 Dec 2017 08:54
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