Determination of crop coefficients and spatial distribution of evapotranspiration and net irrigation requirement for three commonly cultivated crops in South‐East Nigeria. (22nd April 2020)
- Record Type:
- Journal Article
- Title:
- Determination of crop coefficients and spatial distribution of evapotranspiration and net irrigation requirement for three commonly cultivated crops in South‐East Nigeria. (22nd April 2020)
- Main Title:
- Determination of crop coefficients and spatial distribution of evapotranspiration and net irrigation requirement for three commonly cultivated crops in South‐East Nigeria
- Authors:
- Okechukwu, M.E.
Mbajiorgu, C.C. - Abstract:
- Abstract: Effective crop production is one major way of ensuring food security, but basic information on evapotranspiration and net irrigation requirement are needed. ETc, NIR and their spatial distribution were studied for three commonly cultivated crops in south‐east Nigeria, namely African spinach ( Amarathus hybridus ), Nsukka yellow pepper ( Capsicum Chinese Nsukkadrilus ) and maize ( Zea mays ). The average daily ETc from lysimetric water balance studies and K c were 3.9, 4.20 and 3.7 mm and 0.87, 0.93 and 0.82 for spinach, pepper, and, maize, respectively. The statewide annual evapotranspiration for the crops was between 1070 and 1450 mm. The average annual ranges of NIR were 408–706, 524–706 and 450–621 mm for African spinach, Nsukka yellow pepper and maize, respectively. Statewide, Imo and Abia states do not require irrigation annually. Mapping spatially interpolated evapotranspiration and NIR has not only provided information on areas where weather stations are not available but have also provided information for farmers, water managers and policy makers for effective water resources management and improved crop production for food security in the south‐east of Nigeria. © 2020 John Wiley & Sons, Ltd. Résumé: Une production agricole efficace est l'un des principaux moyens d'assurer la sécurité alimentaire, mais des informations de base sur l'évapotranspiration des cultures et les besoins nets d'irrigation sont nécessaires. L' ETc, le NIR et leur distributionAbstract: Effective crop production is one major way of ensuring food security, but basic information on evapotranspiration and net irrigation requirement are needed. ETc, NIR and their spatial distribution were studied for three commonly cultivated crops in south‐east Nigeria, namely African spinach ( Amarathus hybridus ), Nsukka yellow pepper ( Capsicum Chinese Nsukkadrilus ) and maize ( Zea mays ). The average daily ETc from lysimetric water balance studies and K c were 3.9, 4.20 and 3.7 mm and 0.87, 0.93 and 0.82 for spinach, pepper, and, maize, respectively. The statewide annual evapotranspiration for the crops was between 1070 and 1450 mm. The average annual ranges of NIR were 408–706, 524–706 and 450–621 mm for African spinach, Nsukka yellow pepper and maize, respectively. Statewide, Imo and Abia states do not require irrigation annually. Mapping spatially interpolated evapotranspiration and NIR has not only provided information on areas where weather stations are not available but have also provided information for farmers, water managers and policy makers for effective water resources management and improved crop production for food security in the south‐east of Nigeria. © 2020 John Wiley & Sons, Ltd. Résumé: Une production agricole efficace est l'un des principaux moyens d'assurer la sécurité alimentaire, mais des informations de base sur l'évapotranspiration des cultures et les besoins nets d'irrigation sont nécessaires. L' ETc, le NIR et leur distribution spatiale ont été étudiés pour trois cultures couramment cultivées dans le sud‐est du Nigéria, à savoir les épinards africains ( Amarathus hybridus ), le poivron jaune Nsukka ( Capsicum Chinese Nsukkadrilus ) et le maïs ( Zea mays ), respectivement. L'ETc quotidien moyen des études de bilan hydrique lysimétrique et K c étaient de 3.9, 4.20 et 3.7 mm; et 0.87, 0.93 et 0.82 pour les épinards, le poivron et le maïs, respectivement. L'évapotranspiration annuelle des cultures à l'échelle de l'État pour les cultures se situait entre 1070 et 1450 mm. Les fourchettes annuelles moyennes de NIR étaient respectivement de 408 à 706 mm, de 524 à 706 mm et de 450 à 621 mm pour les épinards africains, le poivron jaune Nsukka et le maïs. Dans tout l'État, les États d'Imo et d'Abia n'ont pas besoin d'irrigation chaque année. La cartographie de l'évapotranspiration des cultures interpolée spatialement et des besoins nets d'irrigation a non seulement fourni des informations sur les zones où les stations météorologiques ne sont pas disponibles, mais a également fourni des informations aux agriculteurs, aux gestionnaires de l'eau et aux décideurs politiques pour une gestion efficace des ressources en eau et une meilleure production agricole pour la sécurité alimentaire dans le au sud‐est du Nigéria. © 2020 John Wiley & Sons, Ltd. … (more)
- Is Part Of:
- Irrigation and drainage. Volume 69:Number 4(2020)
- Journal:
- Irrigation and drainage
- Issue:
- Volume 69:Number 4(2020)
- Issue Display:
- Volume 69, Issue 4 (2020)
- Year:
- 2020
- Volume:
- 69
- Issue:
- 4
- Issue Sort Value:
- 2020-0069-0004-0000
- Page Start:
- 743
- Page End:
- 755
- Publication Date:
- 2020-04-22
- Subjects:
- evapotranspiration -- spatial interpolation -- inverse distance weighting -- net irrigation requirement -- crop water management
évapotranspiration des cultures -- interpolation spatiale -- pondération de distance inverse -- besoins nets d'irrigation -- gestion de l'eau des cultures
Irrigation engineering -- Periodicals
Drainage -- Periodicals
Flood control -- Periodicals
Sustainable agriculture -- Periodicals
627.52 - Journal URLs:
- http://onlinelibrary.wiley.com/ ↗
- DOI:
- 10.1002/ird.2447 ↗
- Languages:
- English
- ISSNs:
- 1531-0353
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 4580.946000
British Library DSC - BLDSS-3PM
British Library STI - ELD Digital store - Ingest File:
- 14428.xml