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Lint yield, fibre quality and its nutrient uptake in Bt cotton (Gossypium hirsutum)– groundnut (Arachis hypogaea) intercropping system using different fertility levels

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Title Lint yield, fibre quality and its nutrient uptake in Bt cotton (Gossypium hirsutum)– groundnut (Arachis hypogaea) intercropping system using different fertility levels
Not Available
 
Creator RAMAN JEET SINGH
I P S AHLAWAT
 
Subject Bt cotton, Fertility, Fibre, Groundnut, Lint, Nitrogen, Nutrient uptake
 
Description Not Available
A field experiment was carried out during the rainy (kharif) seasons of 2006 and 2007 at the Indian Agricultural
Research Institute, New Delhi to study the lint yield, fibre quality and its nutrient uptake in Bt cotton (Gossypium
hirsutum L.) – groundnut (Arachis hypogaea L.) intercropping system using different fertility levels. Intercropping of
groundnut with cotton significantly increased the lint yield by 10 % (130 kg/ha) and fibre production efficiency by 8.5 %
(0.5 kg/ha-day) over sole cotton. However, it did not influence any of the fibre quality traits and its nutrient uptake except
ferrous, manganese and zinc. Substitution of 25 % recommended dose of nitrogen (RDN) by FYM produced additional
180 kg lint /ha over no substitution, whereas substitution of 50 % RDN through FYM reduced lint yield by 150 kg/ha over
no substitution. Substitution of 25 % RDN through FYM and 100 % RDN (150 kg/ha) through urea maintained similar
uptake of macronutrients (N,P and K) in fibre, but 25 % RDN substitution through FYM recorded significantly higher
uptake of micronutrients (Fe, Mn, Zn and Cu) over other treatments. For producing 100 kg lint of Bt cotton in fertilized
treatments, it accumulated 590 g N, 400 g P, 380 g K, 55 g S, 21 g Fe, 4 g Mn, 2.5 g Zn and 2 g Cu in fibre. Substitution
of 25 % RDN through FYM being on par with 100 % RDN recorded higher values of seed index, lint index and micronaire
over other treatments. Fibre length and micronaire showed strong correlation with seed weight. Similarly fibre length and
micronaire showed strong correlation with fibre N content. Results from this study supports that fibre properties of Bt
cotton (RCH 134) are highly genetically influenced and least affected by management practices
Not Available
 
Date 2020-02-26T09:19:28Z
2020-02-26T09:19:28Z
2012-12-01
 
Type Research Paper
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/33390
 
Language English
 
Relation Not Available;
 
Publisher Not Available