Maize Sole Crop and Intercrop Response to Fertilizer in Mali and Niger

Core Ideas Applying N for maize production in semi‐arid west Africa can be profitable.The profit potential of N application is great for maize–groundnut intercrop.Application of P and K has low and inconsistent profit potential for maize production in semi‐arid west Africa.Nutrient response function...

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Published inAgronomy journal Vol. 110; no. 2; pp. 728 - 736
Main Authors Maman, Nouri, Traore, Lamine, Garba, Maman, Dicko, Mohamed, Gonda, Abdou, Wortmann, Charles
Format Journal Article
LanguageEnglish
Published The American Society of Agronomy, Inc 01.03.2018
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Abstract Core Ideas Applying N for maize production in semi‐arid west Africa can be profitable.The profit potential of N application is great for maize–groundnut intercrop.Application of P and K has low and inconsistent profit potential for maize production in semi‐arid west Africa.Nutrient response functions can be determined for maize–groundnut intercrop from maize sole crop data. Maize (Zea mays L.) is important in semiarid West Africa where the increase in demand exceeds the increase in production. Yield is often constrained by inadequate nutrient availability even though the occurrence of soil water deficits may overall be more constraining. Research was conducted in semiarid Mali and Niger to determine the yield and profit responses of maize sole crop (MzSC) to N, P, and K and to develop a procedure for determining maize–groundnut (Arachis hypogaea L.) intercrop (MzGnI) nutrient response functions from MzSC functions. Trials were conducted in 2014 and 2015 at five locations spanning 14 degrees of longitude and two degrees of latitude. Mean MzSC grain yield increase due to 50 kg ha−1 N was 0.69 Mg ha−1 in Mali and 0.42 Mg ha−1 in Niger, and due to 10 kg ha−1 P was 0.14 Mg ha−1 in Niger with inconsistent P effects in Mali. Responses to K were negligible. Productivity and profit potential with N application was more with MzGnI compared with MzSC, but profit potential for applied P and K were not improved with MzGnI. Considering the fodder value of stover added to production value but did not have much effect on profits from fertilizer use. The procedure for determining MzGnI nutrient response functions by adapting MzSC functions was developed, providing a means to improve fertilizer use efficiency for MzGnI. Productivity and returns to applied N, on a maize grain value equivalent, are greater with MzGnI compared to MzSC.
AbstractList Core Ideas Applying N for maize production in semi‐arid west Africa can be profitable.The profit potential of N application is great for maize–groundnut intercrop.Application of P and K has low and inconsistent profit potential for maize production in semi‐arid west Africa.Nutrient response functions can be determined for maize–groundnut intercrop from maize sole crop data. Maize (Zea mays L.) is important in semiarid West Africa where the increase in demand exceeds the increase in production. Yield is often constrained by inadequate nutrient availability even though the occurrence of soil water deficits may overall be more constraining. Research was conducted in semiarid Mali and Niger to determine the yield and profit responses of maize sole crop (MzSC) to N, P, and K and to develop a procedure for determining maize–groundnut (Arachis hypogaea L.) intercrop (MzGnI) nutrient response functions from MzSC functions. Trials were conducted in 2014 and 2015 at five locations spanning 14 degrees of longitude and two degrees of latitude. Mean MzSC grain yield increase due to 50 kg ha−1 N was 0.69 Mg ha−1 in Mali and 0.42 Mg ha−1 in Niger, and due to 10 kg ha−1 P was 0.14 Mg ha−1 in Niger with inconsistent P effects in Mali. Responses to K were negligible. Productivity and profit potential with N application was more with MzGnI compared with MzSC, but profit potential for applied P and K were not improved with MzGnI. Considering the fodder value of stover added to production value but did not have much effect on profits from fertilizer use. The procedure for determining MzGnI nutrient response functions by adapting MzSC functions was developed, providing a means to improve fertilizer use efficiency for MzGnI. Productivity and returns to applied N, on a maize grain value equivalent, are greater with MzGnI compared to MzSC.
Author Dicko, Mohamed
Traore, Lamine
Gonda, Abdou
Wortmann, Charles
Maman, Nouri
Garba, Maman
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Snippet Core Ideas Applying N for maize production in semi‐arid west Africa can be profitable.The profit potential of N application is great for maize–groundnut...
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Title Maize Sole Crop and Intercrop Response to Fertilizer in Mali and Niger
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