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Effect of micro-irrigation on water productivity in system of rice (Oryza sativa) and wheat (Triticum aestivum) intensification

Indian Agricultural Research Journals

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Title Effect of micro-irrigation on water productivity in system of rice (Oryza sativa) and wheat (Triticum aestivum) intensification
 
Creator KUMAR, AJAY
SINGH, S K
KAUSHAL, K K
PURUSHOTTAM, PURUSHOTTAM
 
Subject Check basin irrigation, Irrigation method, Micro-irrigation, System of Rice Intensification (SRI), System of Wheat Intensification (SWI), Water productivity
 
Description A field experiment was conducted during 2011-2013 to study the performance of different irrigation methods on water productivity in system of rice and wheat intensification (SRI and SWI) at research farm of ICAR-Research Complex for Eastern Region, Patna. Three methods of irrigation, Low Energy Water Application (LEWA), microsprinkler and check basin irrigation methods were combined with three establishment methods SRI/SWI, line transplanting/sowing and farmers’ practices of transplanting/sowing respectively, in rice (Oryza sativa L.) and wheat (Triticum aestivum L.) crops laid out in 32 factorial randomized block design. SRI under micro irrigation system (LEWA and micro-sprinkler) resulted in significantly higher (128 and 123 %) grain yield of rice as compared to farmers’ practice of rice transplanting under check basin irrigation (3.80 tonnes/ha). However, the grain yield variation between LEWA and micro-sprinkler irrigation under different establishment methods was insignificant. Whereas, a combination of SRI and micro-irrigation (LEWA and micro-sprinkler) significantly increased water productivity by 153 and 156 % respectively in comparison to check basin under framers’ practices of rice establishment (0.34 kg/m3). There was a mean saving of 27 and 39% water observed in LEWA and micro sprinkler irrigation, respectively as compared to check basin irrigation (340 mm) in rice crop. In case of wheat, SWI in combination with micro-irrigation system (LEWA and micro-sprinkler) recorded significantly higher (132 and 131%) grain yield in comparison to farmers’ practice of wheat establishment under check basin irrigation (3.10 tonne/ha). Whereas, a combination of SWI and micro-irrigation (LEWA and micro-sprinkler) significantly increased water productivity by 190 and 233 % respectively in comparison to check basin under framers’ practices of wheat establishments (1.07 kg/m3). There was a mean saving of 23 and 36% water observed in LEWA and micro-sprinkler irrigation respectively as compared to check basin irrigation (249 mm) in wheat crop. It has been clearly established that SRI and SWI in combination with micro-irrigation played crucial role in enhancing the grain yield and water productivity of rice and wheat.
 
Publisher The Indian Journal of Agricultural Sciences
 
Contributor —
 
Date 2015-10-06
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/52300
 
Source The Indian Journal of Agricultural Sciences; Vol 85, No 10 (2015)
0019-5022
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAgS/article/view/52300/22033
 
Rights Copyright (c) 2015 The Indian Journal of Agricultural Sciences