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Revisiting Agro-ecological sub regions of India – A case study of two major food production zones

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Title Revisiting Agro-ecological sub regions of India – A case study of two major food production zones
Not Available
 
Creator Mandal, C. et al.
 
Subject Agro-ecological sub-regions, food production zones, land-use planning, length of growing period.
 
Description Not Available
The sustenance of food and nutritional security are
the major challenges of the 21st century. The domestic
food production needs to increase per annum at the
rate of 2% for cereals and 0.6% for oilseeds and pulses
to meet the demand by 2030. The Indo-Gangetic Plains
(IGP) and the black soil regions (BSR) are the two major
food production zones of the country. Since irrigation
potential is limited and expansion of irrigated area
is tardy, rainfed agriculture holds promise to satisfy
future food needs. Frontline demonstrations of these
two regions have shown that there is a large gap at the
farmers’ and achievable levels of yields. This gap can be
filled by adopting scientific approach of managing the
natural resources. There is tremendous pressure of biotic
and abiotic stresses hindering the crop production
and that warrants for a systematic appraisal of natural
resources. The National Bureau of Soil Survey and
Land Use Planning (NBSS&LUP) under the Indian
Council of Agricultural Research (ICAR) divided the
country into 60 agro-ecological sub-regions (AESRs) in
1994 by superimposing maps on natural resources like
soils, climate and length of growing period (LGP) for
crops and other associated parameters. With the
passage of nearly two decades and the advent of modern
facilities of database management and improved knowledge
base on natural resources, a need was felt to revise
the existing AESR map to reach near the ground reality
of crop performance. The new database stored in soil
and terrain digital database (SOTER) has helped
in modifying the AESR delineations of the BSR
(76.4 m ha) and the IGP (52.01 m ha). The estimated
available water content, saturated hydraulic conductivity
and use of pedo-transfer functions in assessing the
drainage conditions and soil quality have helped in
computing with improved precision the LGP, and revise
the earlier AESRs in BSR and IGP areas. This innovative
exercise will be useful for the future AESR-based
agricultural land use planning.
Not Available
 
Date 2018-11-29T05:40:36Z
2018-11-29T05:40:36Z
2014-11-10
 
Type Research Paper
 
Identifier Mandal, C. et al. 2014. Revisiting Agro-ecological sub regions of India – A case study of two major food production zones. Current Science 107(9):1519-1536
0011-3891
http://krishi.icar.gov.in/jspui/handle/123456789/13968
 
Language English
 
Relation Not Available;
 
Publisher CURRENT SCIENCE ASSOCIATION