Soil Management Practices to Improve Nutrient-use Efficiencies and Reduce Risk in Millet-based Cropping Systems in the Sahel

Low soil fertility and moisture deficit are among the main constraints to sustainable crop yields in the Sahel. A study therefore, was conducted at the ICRISAT Sahelian Center, Sadore in Niger to test the hypothesis that integrated soil husbandry practices consisting of manure, fertilizer and crop r...

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Main Authors: Koala, S., Shapiro, B., Bationo, A., Yamoah, CF.
Format: Article
Language:English
Published: Presses Agronomiques de Gembloux 2003-01-01
Series:Tropicultura
Subjects:
Online Access:http://www.tropicultura.org/text/v21n2/66.pdf
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author Koala, S.
Shapiro, B.
Bationo, A.
Yamoah, CF.
author_facet Koala, S.
Shapiro, B.
Bationo, A.
Yamoah, CF.
author_sort Koala, S.
collection DOAJ
description Low soil fertility and moisture deficit are among the main constraints to sustainable crop yields in the Sahel. A study therefore, was conducted at the ICRISAT Sahelian Center, Sadore in Niger to test the hypothesis that integrated soil husbandry practices consisting of manure, fertilizer and crop residues in rotational cropping systems use organic and mineral fertilizes efficiently, thereby resulting in higher yields and reduced risk. Results from an analysis of variance showed that choice of cropping systems explained more than 50% of overall variability in millet and cowpea grain yields. Among the cropping systems, rotation gave higher yields than sole crop and intercropping systems and increased millet yield by 46% without fertilizer. Rainfall-use efficiency and partial factor productivity of fertilizer were similarly higher in rotations than in millet monoculture system. Returns from cowpea grown in cowpea-millet rotation without fertilizer and the medium rates of fertilizers (4 kg P.ha-1 + 15 kg N.ha-1) were found to be most profitable in terms of high returns and low risk, principally because of a higher price of cowpea than millet. The study recommends crop diversification, either in the form of rotations or relay intercropping systems for the Sahel as an insurance against total crop failure.
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spelling doaj.art-07901e021a7e41249119e9b97f432b182022-12-22T00:11:28ZengPresses Agronomiques de GemblouxTropicultura0771-33122003-01-012126672Soil Management Practices to Improve Nutrient-use Efficiencies and Reduce Risk in Millet-based Cropping Systems in the SahelKoala, S.Shapiro, B.Bationo, A.Yamoah, CF.Low soil fertility and moisture deficit are among the main constraints to sustainable crop yields in the Sahel. A study therefore, was conducted at the ICRISAT Sahelian Center, Sadore in Niger to test the hypothesis that integrated soil husbandry practices consisting of manure, fertilizer and crop residues in rotational cropping systems use organic and mineral fertilizes efficiently, thereby resulting in higher yields and reduced risk. Results from an analysis of variance showed that choice of cropping systems explained more than 50% of overall variability in millet and cowpea grain yields. Among the cropping systems, rotation gave higher yields than sole crop and intercropping systems and increased millet yield by 46% without fertilizer. Rainfall-use efficiency and partial factor productivity of fertilizer were similarly higher in rotations than in millet monoculture system. Returns from cowpea grown in cowpea-millet rotation without fertilizer and the medium rates of fertilizers (4 kg P.ha-1 + 15 kg N.ha-1) were found to be most profitable in terms of high returns and low risk, principally because of a higher price of cowpea than millet. The study recommends crop diversification, either in the form of rotations or relay intercropping systems for the Sahel as an insurance against total crop failure.http://www.tropicultura.org/text/v21n2/66.pdfDiversificationCropping systemsNutrientuse efficiencyRiskSoil managementNiger
spellingShingle Koala, S.
Shapiro, B.
Bationo, A.
Yamoah, CF.
Soil Management Practices to Improve Nutrient-use Efficiencies and Reduce Risk in Millet-based Cropping Systems in the Sahel
Tropicultura
Diversification
Cropping systems
Nutrient
use efficiency
Risk
Soil management
Niger
title Soil Management Practices to Improve Nutrient-use Efficiencies and Reduce Risk in Millet-based Cropping Systems in the Sahel
title_full Soil Management Practices to Improve Nutrient-use Efficiencies and Reduce Risk in Millet-based Cropping Systems in the Sahel
title_fullStr Soil Management Practices to Improve Nutrient-use Efficiencies and Reduce Risk in Millet-based Cropping Systems in the Sahel
title_full_unstemmed Soil Management Practices to Improve Nutrient-use Efficiencies and Reduce Risk in Millet-based Cropping Systems in the Sahel
title_short Soil Management Practices to Improve Nutrient-use Efficiencies and Reduce Risk in Millet-based Cropping Systems in the Sahel
title_sort soil management practices to improve nutrient use efficiencies and reduce risk in millet based cropping systems in the sahel
topic Diversification
Cropping systems
Nutrient
use efficiency
Risk
Soil management
Niger
url http://www.tropicultura.org/text/v21n2/66.pdf
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