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Cotton Productivity, Profitability and Changes in Soil Properties under Different Nutrient Management Practices

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Title Cotton Productivity, Profitability and Changes in Soil Properties under Different Nutrient Management Practices
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Creator M. Ranjith, S. Sridevi, M. Venkata Ramana and P. Chandrasekhar Rao
 
Subject Bt cotton, nutrient management, productivity, profitability, nutrient availability, economics
 
Description Not Available
Cotton is an important fibre crop of global significance, which is, cultivated in tropical and sub-tropical
regions of more than seventy countries the world over. A field experiment was conducted during kharif,
2013 to evaluate the nutrient requirement of Bt cotton vis-a-vis fertilizer practices in vogue. At different
growth stages, except control, all other treatments recorded higher number of monopodial and sympodial
branches than 100% RDF. Incremental doses of fertilizers increased number of bolls plant-1 but very high
doses practiced by farmers did not help in increasing boll number. Kapas yield increased with increasing
fertilizer dose from 100 to 150% but was on par with the yield realized in 100% NPK and soil test based
fertilizer application. Quality parameters like seed index, lint index and ginning out turn were not
influenced by the fertilizer treatments. Availability nitrogen was lowest in control and highest in farmers’
practice. Availability phosphorus and potassium was lowest in control and highest in soil test based
fertilizer application. Available sulphur content in soil was lowest in control and highest in 150% RDF + S
@ 30 kg ha-1. Micronutrient status in soil at flowering and harvest stages was not significantly influenced
by the fertilizer treatments. Economic analysis also indicated that application of very high doses of
fertilizers did not help in getting higher net returns or higher benefit cost ratio. It is logical to resortof soil
test based fertilizer application or to adopt the present recommendation of 150:60:60 kg NPK ha-1 for
profitable cultivation of Bt cotton in Warangal district of Telangana state
Not Available
 
Date 2019-12-05T04:36:54Z
2019-12-05T04:36:54Z
2015-12-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/27664
 
Language English
 
Relation Not Available;
 
Publisher Soil Science