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Interventions of high residual sodium carbonate water-degraded soils amelioration technology in Indian Thar Desert and farmers’ response

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Title Interventions of high residual sodium carbonate water-degraded soils amelioration technology in Indian Thar Desert and farmers’ response
Not Available
 
Creator Mahesh Kumar
Amal Kar
Raj Singh
 
Subject Arid soil, high RSC-water, irrigation, gypsum application, wheat yield
 
Description Not Available
Eight on-farm trials were conducted during 2008-2011 to investigate the effect of various levels of gypsum application (100, 50, 25 and 0 % of GR) on soil properties and yield of wheat grown on Typic Haplocambids soils irrigated with high residual sodium carbonate (RSC) water. Gypsum requirement (GR) was calculated on the basis of soil gypsum requirement plus quantity of gypsum required to neutralize RSC of irrigation water in excess of 3 me/L. The study indicated that gypsum application at the rate of 100% GR decreased soil pH by 0.3-1.0 units and SAR by 10.9-13.1 over control at 0-15 cm soil depth. The grain yield of wheat increased by 600-1700 kg/ha with the gypsum application at the rate of 100% GR. During on-farm trials opinions received from 45 farmers revealed 100% agreement on the efficacy of the technology, and a promise for its continuation. A repeat survey during 2013 of the area revealed only 30% adoption of technology. About 60% of the non-adopters intended to follow the technology if inputs were given to them, while 30% cited non-availability of inputs in time, and 10% suggested high input cost. These results suggest some attitudinal problems in adoption rather than any in the technology, and may need serious attention of social scientists and policy planners.
ICAR-CAZRI
 
Date 2019-05-13T11:40:08Z
2019-05-13T11:40:08Z
2016-07-01
 
Type Article
 
Identifier 01
0250-541X
http://krishi.icar.gov.in/jspui/handle/123456789/19421
 
Language English
 
Relation Not Available;
 
Publisher Springer