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Understanding biophysical and socio-economic determinants of maize (Zea mays L.) yield variability in eastern India

Author: Banerjee, H.
Author: Goswami, R.
Author: Chakraborty, S.
Author: Dutta, S.
Author: Majumdar, K.
Author: Satyanarayana, T.
Author: Jat, M.L.
Author: Zingore, S.
Year: 2014
ISSN: 1573-5214
URI: https://hdl.handle.net/10883/19738
Abstract: The aim of this paper was to investigate the key factors limiting maize (Zea mays L.) productivity in eastern India to develop effective crop and nutrient management strategies to reduce yield gap. A series of farm surveys was conducted in two distinct agro-ecological zones of eastern India to evaluate the importance of crop management and structural constraints for maize productivity in a range of socio-economic settings prevalent in smallholder farms. Surveys revealed yield gap and yield variations among farms across growing seasons. Lower yields of farmers were mainly associated with farmer's ethnic origin, availability of family labor, land ownership, legumes in cropping sequence, irrigation constraints, seed type, optimal plant population, labor and capital investment, and use of organic manure. These constraints varied strongly between sites as well as growing seasons. Stochastic Frontier Analysis suggested intensification of farm input use and removal of socio-economic and structural constraints for increasing efficiency in maize production. The use of multivariate classification and regression tree analysis revealed that maize yield was affected by multiple and interacting production constraints, differentiating the surveyed farms in six distinct resource groups. These farm types lend scope for introducing typology-specific crop management practices through appropriate participatory on-farm evaluation/trials. Summarily, this research indicated that interacting production constraints should be addressed simultaneously, considering the need of different farm types, if significant productivity improvements are to be achieved. This will be, however, more challenging for less endowed farms due to lack of social and financial capital to improve management intensity.A typology-specific farm support strategy may be formulated to offset this lack of entitlement among resource-poor farmers.
Format: PDF
Language: English
Publisher: Elsevier
Publisher: Royal Netherlands Society for Agricultural Sciences
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Type: Article
Country focus: Western India
Place of Publication: Netherlands
Pages: 79-93
Volume: 70-71
DOI: 10.1016/j.njas.2014.08.001
Keywords: Classification and regression tree
Keywords: Farm typology
Keywords: Production constraints
Keywords: Smallholder farms
Keywords: Stochastic Frontier Analysis
Country of Focus: Western India
Agrovoc: CLASSIFICATION SYSTEMS
Agrovoc: REGRESSION ANALYSIS
Agrovoc: FARM TYPOLOGY
Agrovoc: PRODUCTION FACTORS
Agrovoc: SMALLHOLDERS
Agrovoc: STOCHASTIC MODELS
Agrovoc: YIELD GAP
Journal: NJAS - Wageningen Journal of Life Sciences


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  • Sustainable Intensification
    Sustainable intensification agriculture including topics on cropping systems, agronomy, soil, mechanization, precision agriculture, etc.

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