Crop Area Statistics

Raju, K V and Hegde, V R and Hegde, S A (2018) Crop Area Statistics. In: Geospatial Technologies for Agriculture : Case Studies from India. Springer, pp. 3-14. ISBN 978-3-319-96645-8

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Generation of crop statistics in India dates back to Kautilya’s Arthashastra (an ancient Indian treatise on statecraft belonging to third century BC) as well as Moghul era (sixteenth century). Currently, the crop statistics are generated based on land revenue system for major food crops and non-food crops. The data is received from the State Agricultural Statistics Authorities in various states and union territories. Methods for crop area estimation based on different sampling techniques have been successful but cost-effective methods, especially in developing or underdeveloped nations, are needed. New technologies like remote sensing, GPS, and GIS have played a major role. Crop area estimation at the national level is more established. Addressing accuracy first, it is important to address national versus small area estimation; in terms of accuracy, it seems to be a choice between accuracy and cost, assuming each has an approximate level of timeliness. Methods using satellite images have the essential component of reference of ground truths. In a mixed cropping pattern with small and fragmented holdings, the extent of ground truths was found to be inadequate, and studies indicate that manual extraction of field boundaries with thorough knowledge of the landscape provides useful results and provides control on datasets for further validation, while field inventory is done adopting an integrated approach.

Item Type: Book Section
Divisions: Research Program : Asia
Uncontrolled Keywords: Crop statistics, Land revenue system, Satellite images, Mixed cropping pattern, Fragmented holding, Ground truth, Field boundaries
Subjects: Others > Agriculture
Others > Agricultural Statistics
Depositing User: Mr Ramesh K
Date Deposited: 11 Dec 2018 09:00
Last Modified: 11 Dec 2018 09:00
Acknowledgement: UNSPECIFIED
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