Cropping systems options in relation to ENSO phase for Nandyal in Andhra Pradesh - a simulation analysis

Singh, P and Srinivas, K and Nageswara Rao, V and Krishna, T G (2008) Cropping systems options in relation to ENSO phase for Nandyal in Andhra Pradesh - a simulation analysis. Journal of Agrometeorology, 10 (1). pp. 150-158.

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Abstract

In rainfed environments, the productivity of cropping systems is primarily determined by the amount and distribution of rainfall. In southern India, the ENSO condition to some degree determines the potential of the ensuing rainy season in terms of amount of summer monsoon rainfall that is likely to be received in the region. Although it is difficult to predict the distribution of rainfall at a site or region, the prediction of rainfall amount would help farmers to plan cropping strategies to minimize climatic risks to crop production. Using crop simulation models and long-term weather records (1961 to 2006), productivity and net income of three sequential cropping systems (maize-chickpea, soybean-chickpea and groundnut-chickpea) and three intercrop systems (maize/pigeonpea, soybean/pigeonpea and groundnut/pigeonpea) were evaluated for the three ENSO conditions for Nandyal situated in the Kurnool district of Andhra Pradesh. The simulation analysis showed that groundnut-chickpea sequential, groundnut/pigeonpea and soybean/pigeonpea intercrop systems during the La-Niña years, while maize/pigeonpea and groundnut/pigeonpea intercrop systems during the El Niño years gave higher net income at low risk among the cropping systems studied. During Neutral years, groundnut/pigeonpea intercrop systems was the most promising in terms of net income The study has demonstrated that assessing the potential of seasons based on ENSO condition would help farmers maximize incomes and reduce climatic risks by providing more efficient cropping systems options in the region.

Item Type: Article
Divisions: UNSPECIFIED
CRP: UNSPECIFIED
Subjects: Others > Agriculture-Farming, Production, Technology, Economics
Depositing User: Library ICRISAT
Date Deposited: 27 Oct 2011 14:26
Last Modified: 19 Dec 2013 03:58
URI: http://oar.icrisat.org/id/eprint/2698
Official URL:
Projects: UNSPECIFIED
Funders: UNSPECIFIED
Acknowledgement: UNSPECIFIED
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