A High Plant Density and the Split Application of Chemical Fertilizer Increased the Grain and Protein Content of Cowpea (<i>Vigna unguiculata</i>) in Burkina Faso, West Africa

In West Africa, cowpea (<i>Vigna unguiculata</i>) is an important source of protein for many people. To meet the protein demands, the cowpea yields per unit area and its seed protein content must be increased. We evaluated the effects of the planting density and topdressing (fertilisatio...

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Main Authors: Haruki Ishikawa, Benoît Joseph Batieno, Christian Fatokun, Ousmane Boukar
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Agriculture
Subjects:
Online Access:https://www.mdpi.com/2077-0472/12/2/199
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author Haruki Ishikawa
Benoît Joseph Batieno
Christian Fatokun
Ousmane Boukar
author_facet Haruki Ishikawa
Benoît Joseph Batieno
Christian Fatokun
Ousmane Boukar
author_sort Haruki Ishikawa
collection DOAJ
description In West Africa, cowpea (<i>Vigna unguiculata</i>) is an important source of protein for many people. To meet the protein demands, the cowpea yields per unit area and its seed protein content must be increased. We evaluated the effects of the planting density and topdressing (fertilisation) timing on the cowpea yield and its protein content. High density (HD: 40 × 40 cm) and super high density (SHD: 40 × 20 cm) plantings were the most efficient approaches for enhancing cowpea yields. Across different regions in Burkina Faso, under such approaches, the yield significantly increased by as much as 214.5%, with an average value of 88.9%. Fertilisation was not required to achieve the significant increases in cowpea production following dense planting. Although the yield increased, the seed weight per plant decreased with the increase in planting density. Applying topdressing when the plants started flowering increased the seed protein content significantly by up to 24.4%. Simple and robust technologies, such as high-density planting and topdressing, can be rapidly disseminated for increased cowpea yields and protein content improvement for Burkina Faso and for other countries.
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spelling doaj.art-79c469f8e5b24732abb4fb367c3863532023-11-23T18:16:15ZengMDPI AGAgriculture2077-04722022-01-0112219910.3390/agriculture12020199A High Plant Density and the Split Application of Chemical Fertilizer Increased the Grain and Protein Content of Cowpea (<i>Vigna unguiculata</i>) in Burkina Faso, West AfricaHaruki Ishikawa0Benoît Joseph Batieno1Christian Fatokun2Ousmane Boukar3International Institute of Tropical Agriculture (IITA), PMB 5320, Oyo Road, Ibadan 200001, Oyo, NigeriaInstitut de l’Environnement et de Recherches Agricoles (INERA), Ouagadougou 04 BP 8645, Burkina FasoInternational Institute of Tropical Agriculture (IITA), PMB 5320, Oyo Road, Ibadan 200001, Oyo, NigeriaInternational Institute of Tropical Agriculture (IITA), PMB 5320, Oyo Road, Ibadan 200001, Oyo, NigeriaIn West Africa, cowpea (<i>Vigna unguiculata</i>) is an important source of protein for many people. To meet the protein demands, the cowpea yields per unit area and its seed protein content must be increased. We evaluated the effects of the planting density and topdressing (fertilisation) timing on the cowpea yield and its protein content. High density (HD: 40 × 40 cm) and super high density (SHD: 40 × 20 cm) plantings were the most efficient approaches for enhancing cowpea yields. Across different regions in Burkina Faso, under such approaches, the yield significantly increased by as much as 214.5%, with an average value of 88.9%. Fertilisation was not required to achieve the significant increases in cowpea production following dense planting. Although the yield increased, the seed weight per plant decreased with the increase in planting density. Applying topdressing when the plants started flowering increased the seed protein content significantly by up to 24.4%. Simple and robust technologies, such as high-density planting and topdressing, can be rapidly disseminated for increased cowpea yields and protein content improvement for Burkina Faso and for other countries.https://www.mdpi.com/2077-0472/12/2/199legumescowpeafertilizationseed yieldplanting densityseed protein content
spellingShingle Haruki Ishikawa
Benoît Joseph Batieno
Christian Fatokun
Ousmane Boukar
A High Plant Density and the Split Application of Chemical Fertilizer Increased the Grain and Protein Content of Cowpea (<i>Vigna unguiculata</i>) in Burkina Faso, West Africa
Agriculture
legumes
cowpea
fertilization
seed yield
planting density
seed protein content
title A High Plant Density and the Split Application of Chemical Fertilizer Increased the Grain and Protein Content of Cowpea (<i>Vigna unguiculata</i>) in Burkina Faso, West Africa
title_full A High Plant Density and the Split Application of Chemical Fertilizer Increased the Grain and Protein Content of Cowpea (<i>Vigna unguiculata</i>) in Burkina Faso, West Africa
title_fullStr A High Plant Density and the Split Application of Chemical Fertilizer Increased the Grain and Protein Content of Cowpea (<i>Vigna unguiculata</i>) in Burkina Faso, West Africa
title_full_unstemmed A High Plant Density and the Split Application of Chemical Fertilizer Increased the Grain and Protein Content of Cowpea (<i>Vigna unguiculata</i>) in Burkina Faso, West Africa
title_short A High Plant Density and the Split Application of Chemical Fertilizer Increased the Grain and Protein Content of Cowpea (<i>Vigna unguiculata</i>) in Burkina Faso, West Africa
title_sort high plant density and the split application of chemical fertilizer increased the grain and protein content of cowpea i vigna unguiculata i in burkina faso west africa
topic legumes
cowpea
fertilization
seed yield
planting density
seed protein content
url https://www.mdpi.com/2077-0472/12/2/199
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