Moisture Stress Assessment through NDVI and Climate Tools for Crop Management at Anantpur District, AP

Rao, A V R K and Nageswara Rao, D V K and Wani, S P and Minhas, P S and Ahmed, M I and Madhukar, G (2013) Moisture Stress Assessment through NDVI and Climate Tools for Crop Management at Anantpur District, AP. In: Geospatial Technologies for Natural Resources Management. New India Publishing Agency, New Delhi, India, pp. 363-374. ISBN 9381450803

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Abstract

Anantapur is the driest district of Andhra Pradesh and hence, agriculture conditions are very often precarious. Groundnut grows where other crops fail and thus it is the predominant crop of Anantapur district. Groundnut is grown in about 7.5 lakh ha in Anantapur district; however the average yields are low af 500 kg ha-1. Among various available vegetation indices, normalised difference vegetation index (ND VI) is widely used for all reasons, which is a single numerical indicator of presence and condition of green vegetation. ND VI mapping at a regional scale helps to assess the spatial changes in the vigour of green vegetation and thus occurrence of any moisture stress. Climate tOQls have a great role in understanding the crop performance and estimating the yields. This study was taken up by using freely available MODIS data to understand ND VI in terms of abiotic stresses over Anantapur district and linking with the actual rainfall conditions, groundnut crop acreage and production. Results indicate that low groundnut yields in general,could be related to ND VI-based stress measurements and rainfall quantum and distribution in the area however, with a few exceptions. It is hoped that by combining improved practices through IWM with climate-adapted crop varieties, rainfed farmers of Anantapur district can sustain their crop production under present climate variability and become resilient to future climate change

Item Type: Book Section
Divisions: UNSPECIFIED
CRP: UNSPECIFIED
Uncontrolled Keywords: Climate, MODIS, NDVI, Anantapur, Groundnut, Integrated Watershed Management
Subjects: Others > Agriculture-Farming, Production, Technology, Economics
Others > Climate Change
Depositing User: Mr Sanat Kumar Behera
Date Deposited: 15 Mar 2013 05:37
Last Modified: 15 Mar 2013 05:37
URI: http://oar.icrisat.org/id/eprint/6656
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