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- W70879440 abstract "Madhya Pradesh in Central India is endowed with Vertisols and associated soils along with assured rainfall(700–1200 mm yr-1). The Vertisols contain high (40–60%) montmorillintic clay and exhibit typical swelling andshrinking characteristics under moist and dry conditions. Vertisols have poor hydraulic conductivity and conse-quently, are frequently poorly drained. Traditionally farmers grow a secured postrainy season crop on stored soilmoisture and keep the fields fallow during rainy season. The most dense region of rainy season fallowing in semi-arid tropical India covers areas endowed with Vertisols. Realizing the potential of Vertisols in supporting a short-duration crop during rainy season, whichotherwise is left fallow, a pilot study was taken up by ICRISAT to delineate the rainy season (kharif) fallows inMadhya Pradesh. The Indian Remote Sensing Satellite (IRS-IC/-ID/-P3) Wide Field Sensor (WiFS) data acquiredduring peak kharif, post-kharif, and mid-rabi cropping season was used. The analytical approach employedinvolves geo-referencing and radiometric normalization of multi-temporal WiFS data, and delineation of khariffallows in a Silicon Graphic Work Station using ERDAS/IMAGINE software anda per-pixel Gaussian maximum likelihood algorithm and limited field check. While mid-kharif and post-kharifseason WiFS data enabled detection of lands that remain fallow during kharif season, mid-rabi season WiFS dataallowed further verification of the delineation since such lands have been found supporting mostly wheat cropduring rabi season. An estimated area of 2.02 million ha, accounting for 6.57% of the total area of the state islying fallow. Utilization of kharif fallows for short-duration pulse crops like soybean may help not only to boostagriculture production but also to improve the sustainability of the agro-ecosystem and minimize land degrada-tion." @default.
- W70879440 created "2016-06-24" @default.
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- W70879440 date "2002-01-01" @default.
- W70879440 modified "2023-09-26" @default.
- W70879440 title "Spatial Distribution of Rainy Season Fallows in Madhya Pradesh: Potential for Increasing Productivity and Minimizing Land Degradation.Global Theme 3: Water, Soil, and Agrobiodiversity Management for Ecosystem Health Report no. 3" @default.
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