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Integrated Management of Fertilizers, Weed and Rice Genotypes Can Improve Rice Productivity

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The influence of weed control on fertilizer nitrogen use efficiencies (NUEs) by rice genotypes was studied in the Senegal River valley of West Africa with a field experiment during four rice growing seasons. It was hypothesized that integrated management of technologies could improve rice productivity. The objective was to develop integrated high-return technologies that improve irrigated rice-based systems productivity and profitability. Data indicated that rice grain yields were affected by N fertilizer, genotypes and plant densities. In good weed control conditions, optimum doses of recommended N fertilizer varied from 80 to 180 kg N ha–1. Fertilizer N use efficiencies by genotypes were affected by weed control. Profitable management options of genotypes and N fertilizer recommendations have been identified. With a good control of weed, varieties and N fertilizer recommendations were suggested as integrated management options for farmers. But poor control of weed increased N lost, decreased grain yields and profitability. Two genotypes (WAS 55-B-B-2-1-2-5 and WAS 191-1-1-7 FKR) were found to be most competitive against weeds. However, no more than 60 kg N ha–1 should ever be recommended when weeds are poorly controlled. It was concluded that productivity and profitability of irrigated rice-based systems could be improved with integrated management options of genotypes, fertilizers and weed.


  • Fertilizer
  • Nitrogen
  • Weed
  • Varieties
  • Rice

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  • DOI: 10.1007/978-90-481-2543-2_16
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Correspondence to B.V. Bado .

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© 2011 Springer Science+Business Media B.V.

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Bado, B., Traore, K., Devries, M., Sow, A., Gaye, S. (2011). Integrated Management of Fertilizers, Weed and Rice Genotypes Can Improve Rice Productivity. In: Bationo, A., Waswa, B., Okeyo, J., Maina, F., Kihara, J. (eds) Innovations as Key to the Green Revolution in Africa. Springer, Dordrecht.

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