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Nitrogen effects on maize yield following groundnut in rotation on smallholder farms in sub-humid Zimbabwe

Author: Jeranyama, P.
Author: Waddington, S.R.
Author: Hesterman, O.B.
Author: Harwood, R.R.
Year: 2007
ISSN: 1684-5315
Abstract: Rotating maize (Zea mays L.) with groundnut (Arachis hypogaea L.) has been proposed as a way to maintain soil fertility and prevent maize productivity declines in the smallholder cropping systems of sub-humid Zimbabwe. Field experiments with fertilizer-N on maize in rotation with groundnut were conducted at three locations with sandy typic Kandiustalf soils. The specific objectives were to (i) evaluate the response to fertilizer-N of maize in rotation with groundnut compared with continuous maize and, (ii) determine the fertilizer-N replacement value of groundnut. Maize grain yields were increased up to 0.7 tha-1 following groundnut compared with continuous maize when no fertilizer was applied to both cropping systems. Maize yield response to fertilizer-N was higher after groundnut than continuous maize. The small groundnut yields were associated with little yield improvement for a subsequent maize crop. Fertilizer needs on maize were reduced by 0 - 64 kgNha-1 when maize followed groundnut.
Format: PDF
Language: English
Publisher: Academic Journals
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Type: Article
Country focus: Zimbabwe
Region: Southern Africa
Pages: 1503-1508
Issue: 13
Volume: 6
DOI: 10.5897/AJB2007.000-2214
Publisher URI:
Agrovoc: MAIZE
Journal: African Journal of Biotechnology

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  • Sustainable Intensification
    Sustainable intensification agriculture including topics on cropping systems, agronomy, soil, mechanization, precision agriculture, etc.

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