Seasonal water production functions and yield response factors for maize and onion in Perkerra, Kenya

Water production functions (wpf) giving the relation between crop yield and water application under furrow irrigation on a clay loam soil in the semi-arid region in Kenya (Perkerra) were derived for maize and onion. Due to deep percolation the functions were found to be curvilinear. The seasonal yie...

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Published inAgricultural water management Vol. 56; no. 3; pp. 229 - 240
Main Authors Kipkorir, E.C, Raes, D, Massawe, B
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 31.08.2002
Elsevier Science
Elsevier
SeriesAgricultural Water Management
Subjects
Agricultural and forest climatology and meteorology. Irrigation. Drainage
Agricultural and forest meteorology
Agronomy. Soil science and plant productions
Biological and medical sciences
Deficit irrigation
Fundamental and applied biological sciences. Psychology
General agronomy. Plant production
Kenya, Perkerra
Maize
Onions
Water balance and requirements. Evapotranspiration
Water production functions
Yield response factors
Kenya
Africa
Water production functions
Yield response factors
Maize
Deficit irrigation
Onions
Allium cepa
Monocotyledones
Zea mays
Water balance
Water use efficiency
Production function
Experimental study
Cereal crop
Clay loam soil
Liliaceae
Vegetable crop
Gramineae
Water regime
Seasonal variation
Semi arid zone
Angiospermae
Spermatophyta
Furrow irrigation
Yield
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Abstract Water production functions (wpf) giving the relation between crop yield and water application under furrow irrigation on a clay loam soil in the semi-arid region in Kenya (Perkerra) were derived for maize and onion. Due to deep percolation the functions were found to be curvilinear. The seasonal yield response factors K y, giving the relationship between evapotranspiration deficit and yield depression for maize and onion for the area was computed as 1.21 and 1.28, respectively. Analytical analysis using the derived wpf for maize and existing conditions in an irrigation system located in the area confirmed that if rainfall is significant, deficit irrigation will be more attractive, and at a certain point, it is profitable to cultivate all available area.
AbstractList Water production functions (wpf) giving the relation between crop yield and water application under furrow irrigation on a clay loam soil in the semi-arid region in Kenya (Perkerra) were derived for maize and onion. Due to deep percolation the functions were found to be curvilinear. The seasonal yield response factors Ky, giving the relationship between evapotranspiration deficit and yield depression for maize and onion for the area was computed as 1.21 and 1.28, respectively. Analytical analysis using the derived wpf for maize and existing conditions in an irrigation system located in the area confirmed that if rainfall is significant, deficit irrigation will be more attractive, and at a certain point, it is profitable to cultivate all available area.
Water production functions (wpf) giving the relation between crop yield and water application under furrow irrigation on a clay loam soil in the semi-arid region in Kenya (Perkerra) were derived for maize and onion. Due to deep percolation the functions were found to be curvilinear. The seasonal yield response factors K y, giving the relationship between evapotranspiration deficit and yield depression for maize and onion for the area was computed as 1.21 and 1.28, respectively. Analytical analysis using the derived wpf for maize and existing conditions in an irrigation system located in the area confirmed that if rainfall is significant, deficit irrigation will be more attractive, and at a certain point, it is profitable to cultivate all available area.
Author Kipkorir, E.C
Massawe, B
Raes, D
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Cites_doi 10.1061/(ASCE)0733-9437(1995)121:3(234)
10.1016/0022-1694(83)90045-8
10.1029/WR008i005p01204
10.17660/ActaHortic.1981.119.11
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Issue 3
Keywords Water production functions
Yield response factors
Maize
Deficit irrigation
Onions
Allium cepa
Monocotyledones
Zea mays
Water balance
Water use efficiency
Production function
Experimental study
Cereal crop
Clay loam soil
Liliaceae
Vegetable crop
Gramineae
Water regime
Seasonal variation
Semi arid zone
Angiospermae
Spermatophyta
Furrow irrigation
Yield
Language English
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Snippet Water production functions (wpf) giving the relation between crop yield and water application under furrow irrigation on a clay loam soil in the semi-arid...
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StartPage 229
SubjectTerms Agricultural and forest climatology and meteorology. Irrigation. Drainage
Agricultural and forest meteorology
Agronomy. Soil science and plant productions
Biological and medical sciences
Deficit irrigation
Fundamental and applied biological sciences. Psychology
General agronomy. Plant production
Kenya, Perkerra
Maize
Onions
Water balance and requirements. Evapotranspiration
Water production functions
Yield response factors
Title Seasonal water production functions and yield response factors for maize and onion in Perkerra, Kenya
URI https://dx.doi.org/10.1016/S0378-3774(02)00034-3
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