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Weed dynamics, wheat (Triticum aestivum) yield and irrigation water-use efficiency under conservation agriculture

Weed dynamics, wheat (Triticum aestivum) yield and irrigation water-use efficiency under conservation agriculture

Authors :
TARUN SHARMA
T K DAS
SUSAMA SUDHISHRI
PRAGATI PRAMANIK MAITY
SUNANDA BISWAS
PRABHU GOVINDASAMY
RISHI RAJ
SUMAN SEN
TEEKAM SINGH
AMRIT KUMAR PAUL
ARKAPRAVA ROY
PRIYANKA SAHA
SUBHASH BABU
Source :
The Indian Journal of Agricultural Sciences, Vol 93, Iss 3 (2023)
Publication Year :
2023
Publisher :
Indian Council of Agricultural Research, 2023.

Abstract

A field experiment was conducted to evaluate the impacts of a 12-year old conservation agriculture (CA)- based pigeon pea-wheat system on weeds, wheat crop, and resource use during winter (rabi) 2021–22. Results indicated that surface retention of residue irrespective of ZT permanent bed and N dose led to significant reduction in weed interference at 60 DAS. CA-based systems reduced weed density and dry weight considerably than CT. CA- based systems led to significantly higher wheat grain yield (by 11.6–14.9%) and net B:C (by 24.0 –28.0%) than CT, and PFBR100N and PBBR100N were slightly superior to others. PBBR100N and PBBR75N had lower irrigation water use and significantly higher irrigation water productivity than CT. Contrast analysis showed that wheat yield and water productivity were comparable between 75% N and 100% N in CA, indicating a saving of 25% N under CA.

Details

Language :
English
ISSN :
00195022 and 23943319
Volume :
93
Issue :
3
Database :
Directory of Open Access Journals
Journal :
The Indian Journal of Agricultural Sciences
Publication Type :
Academic Journal
Accession number :
edsdoj.59b1288d6cdb4bca8ce3d71d5afd0704
Document Type :
article
Full Text :
https://doi.org/10.56093/ijas.v93i3.132171