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Research Article
 

Evaluation of Maize Yield in an On-Farm Maize-Soybean and Maize-Lablab Crop Rotation Systems in the Northern Guinea Savanna of Nigeria



J.A. Okogun , N. Sanginga and R.C. Abaidoo
 
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ABSTRACT

An attempt was made to solving the problem of shortfall of fertilizer to maize production in the Northern Guinea Savanna (NGS) of Nigeria by harnessing the potentials of legume/cereal crop rotation in on-farm trials. The yield of maize that succeeded two soybean varieties and Lablab in a two-cycle of soybean/maize and Lablab/maize crop rotation in NGS Nigeria was assessed in researcher-managed and farmer-managed plots. Though maize that followed the soybean received between 5 kg N ha-1 from improved soybean variety (TGx 1448-2E) and 17 kg N ha-1 from farmer soybean variety (Samsoy-2) as N balance, this did not significantly (p = 0.05) affect the maize yields. The soybean shed 90-100% of its leaves at physiological maturity which resulted in about 110 kg N ha-1 N uptake. This source of N might be one of the factors responsible for the increase in maize yield that followed soybean (20 to 24%) compared with continuous maize yield plot. Maize yield in previous Lablab plot was significantly (p = 0.05) higher than in all other treatments. Maize yield in farmer-managed plot ranged between 0.13 and 4.53 t ha-1, maize yield in researcher-managed plot was over 200% higher than maize yield in farmer-managed plot because of poor crop management on the part of the farmer.

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  How to cite this article:

J.A. Okogun , N. Sanginga and R.C. Abaidoo , 2007. Evaluation of Maize Yield in an On-Farm Maize-Soybean and Maize-Lablab Crop Rotation Systems in the Northern Guinea Savanna of Nigeria. Pakistan Journal of Biological Sciences, 10: 3905-3909.

DOI: 10.3923/pjbs.2007.3905.3909

URL: https://scialert.net/abstract/?doi=pjbs.2007.3905.3909

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