Herbicide options for effective weed management in dry direct-seeded rice under scented rice-wheat rotation of western Indo-Gangetic Plains

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dc.contributor.authorSingh, Vijayen
dc.contributor.authorJat, Mangi L.en
dc.contributor.authorGanie, Zahoor A.en
dc.contributor.authorChauhan, Bhagirath S.en
dc.contributor.authorGupta, Raj K.en
dc.date.accessioned2020-08-06T00:47:05Zen
dc.date.available2020-08-06T00:47:05Zen
dc.date.issued2016-03-01en
dc.date.updated2020-08-06T00:47:01Zen
dc.description.abstractFarmers' participatory field trials were conducted at Madhuban, and Taraori, the two participatory experimental sites/locations of the Cereal Systems Initiative for South Asia (CSISA), a collaborative project of IRRI and CIMMYT in Karnal district of Haryana, India, during Kharif (wet season) 2010 and 2011. This research aimed to evaluate preemergence (PRE) and postemergence (POST) herbicides for providing feasible and economically viable weed management options to farmers for predominant scented rice varieties. Treatments with pendimethalin PRE fb bispyribac-sodium + azimsulfuron POST had lower weed biomass at 45 days after sowing (DAS). At Madhuban, highest grain yield of scented basmati rice (3.43 t ha(-1)) was recorded with the sequential application of pendimethalin PRE fb bispyribac-sodium + azimsulfuron POST. However, at Taraori, yields were similar with pendimethalin or oxadiargyl PRE fb bispyribac-sodium and/or azimsulfuron POST. Applying oxadiargyl by mixing with sand onto flooded field was less effective than spray applications in non-flooded field. The benefit-cost ratio of rice crop was higher with herbicide treatments at both sites as compared with the non-treated weed-free check except single PRE and POST applications and sequential application of oxadiargyl PRE fb oxadiargyl PRE. In a separate experiment conducted at Nagla and Taraori sites, scented rice cultivars' ('CSR 30' and 'Pusa 1121') tolerance to three rates of azimsulfuron (15, 25, and 35 g ai ha(-1)) was evaluated over two years (2010 and 2011). CSR 30 (superfine, scented) was more sensitive to higher rates (35 g ai ha(-1)) of azimsulfuron as compared to Pusa 1121 (fine, scented). Crop injuries were 8 and 28% in case of CSR 30; 5 and 15% in Pusa 1121 when applied with azimsulfuron 25 and 35 g ai ha(-1), respectively. Azimsulfuron applied at 35 g ai ha(-1) reduced yield in both cultivars but in CSR 30 yield reduction was twofold (11.5%) as that of Pusa 1121 (5.2%).en
dc.description.versionPublished (Publication status)en
dc.format.extentPages 168-176en
dc.format.extent9 page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1016/j.cropro.2015.12.021en
dc.identifier.eissn1873-6904en
dc.identifier.issn0261-2194en
dc.identifier.otherPMC4767026 (pmc)en
dc.identifier.otherS0261-2194(15)30190-3 (PII)en
dc.identifier.pmid26941471en
dc.identifier.urihttp://hdl.handle.net/10919/99487en
dc.identifier.volume81en
dc.language.isoenen
dc.publisherElsevieren
dc.rightsCreative Commons Attribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectLife Sciences & Biomedicineen
dc.subjectAgronomyen
dc.subjectAgricultureen
dc.subjectB:C ratioen
dc.subjectCrop injuryen
dc.subjectDry direct-seeded riceen
dc.subjectHerbicidesen
dc.subjectWeed managementen
dc.subjectGROWTH-RESPONSEen
dc.subjectIRRIGATED RICEen
dc.subjectWATERen
dc.subjectPRODUCTIVITYen
dc.subjectEMERGENCEen
dc.subjectSYSTEMSen
dc.subject0703 Crop and Pasture Productionen
dc.subjectEntomologyen
dc.titleHerbicide options for effective weed management in dry direct-seeded rice under scented rice-wheat rotation of western Indo-Gangetic Plainsen
dc.title.serialCrop Protectionen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.otherArticleen
dc.type.otherJournalen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciencesen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/Eastern Shore ARECen
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/CALS T&R Facultyen
pubs.organisational-group/Virginia Techen

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