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Performance of rice ( Oryza sativa) varieties at different spacing under system of rice intensification (SRI) in mid hill acid soils of Sikkim Himalayas.

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Title Performance of rice ( Oryza sativa) varieties at different spacing under system of rice intensification (SRI) in mid hill acid soils of Sikkim Himalayas.
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Creator R.K Avasthe,
S. Verma
Ashok Kumar
H. Rahman.
 
Subject Acid soils, long duration rice, manure, mid-hills, mountain regions, medium-duration rice, nutrient uptake, water use efficiency.
 
Description Not Available
Field experiments were conducted at the ICAR Sikkim research farm, Tadong located at an altitude of 1450 mamsl in the per- humid mid hill acidic soils during kharif (Rainy season) of 2008 and 2009 to evaluate the performance of four rice (Oryza sativa.L) varieties viz. RCPL 1-87-8' (medium duration 125 days). Pusa Sugandh-2'(medium duration- 130 days), RC Maniphou-7, (long duration- 150 days) and one local cultivar 'Thulo Attey' (long duration, 155 days) under different spacing in system of rice intensification(SRI) compared with conventional rice cultivation. 'RC Maniphou- 7' recorded the highest grain yield (6.73 t/ha), N uptake(124.8 kg/ha), P uptake (40.5 kg/ha),K uptake (84.3 kg/ha), water use efficiency (2.879kg/ha-mm), net return (Rs- 72,750) and benefit : cost (2.09) at 20x20 cm in RCLP 1-87-8, RC- Maniphou-7' and local cv 'Thulo Attey' over conventional rice cultivation. The optimum spacing undr system of rice intensification for RCPL 1-87-8', 'RC Maniphou-7', and local cv 'Thulo Attey' was 20cm x 20cm. 'Pusa sugandh' recorded a 2.0% yield decrease at SRI 10cm x 10cm, as compared to conventional rice cultivation and did not respond to SRI.
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Date 2020-02-22T09:45:44Z
2020-02-22T09:45:44Z
2012-03-01
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/32247
 
Language English
 
Relation Not Available;
 
Publisher Not Available