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Journal of Agronomy
  Year: 2006 | Volume: 5 | Issue: 2 | Page No.: 232-238
DOI: 10.3923/ja.2006.232.238
 
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Maize Yield Response in a Long-term Rotation and Intercropping Systems in the Guinea Savannah Zone of Northern Ghana

W.A. Agyare , V.A. Clottey , H. Mercer-Quarshie and J.M. Kombiok

Abstract:
To sustain crop production, cowpea, groundnut, soybean, sorghum and cassava were compared for their potential in crop rotation or as an intercropping partner to maize over an eleven-year period in Northern Ghana. The trial in each year consisted of 12 treatments arranged in an RCBD with five replicates. There was a gradual decline in maize yield for groundnut-maize, soybean-maize and cassava-maize as compared to a rapid decline in the other rotation combinations over the years. The best combination was maize-groundnut rotation with grain yields above 3.0 t ha-1. Intercropping advantage for most combinations in the first two years was not sustained in later years, except for sorghum-maize and cassava-maize systems. Sorghum-maize combination was the best in terms of crop yield, based on Land Equivalent Ratio (LER). Cassava-maize and soybean-maize systems were the best in terms of energy value and protein yield respectively. Maize yields obtained were comparatively better in rotation than intercrops, underlining the superiority of rotation to intercropping in the long-term, consequently its potential to improve on household food security. The results so far indicate that good cropping system and proper agronomic practices can sustain maize production on the same piece of land for more than 10 years.
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How to cite this article:

W.A. Agyare , V.A. Clottey , H. Mercer-Quarshie and J.M. Kombiok , 2006. Maize Yield Response in a Long-term Rotation and Intercropping Systems in the Guinea Savannah Zone of Northern Ghana. Journal of Agronomy, 5: 232-238.

DOI: 10.3923/ja.2006.232.238

URL: https://scialert.net/abstract/?doi=ja.2006.232.238

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