Effect of Nitrogen on Weed Infestation and Performance of Boro Rice Under Two Selected Herbicides

Morshed, MM; Bari, M. N.; Khaliq, Q. A.; Alam, M. S.

doi:10.3329/baj.v18i2.28906

Cited by 2 publications

(3 citation statements)

References 5 publications

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“…Kumar et al,(2013) reported that among various herbicides, application of Pretilachlor 750 g ha -1 (pre-emergence) fb Azimsulfuron 35 g ha -1 + NIS (0.25%) at 15 DAT recorded significantly highest net returns (27,461 ha-1) and B:C ratio (1.32). Morshed et al,(2015) found that application of Pyrazosulfuron ethyl @ 150 g ha -1 at 15 DAS + N @ 202 kg ha -1 fetched highest gross and net returns whereas, maximum B: C ratio in Pyrazosulfuron ethyl @ 150g ha -1 at 15 DAS + N @ 151.8 kg ha -1 . Prashanth et al, (2016) reported that among the different herbicide treatments, application of Bispyribac Na @ 25 g ha -1 at 15 DAT has recorded maximum net returns and B:C ratio fb Bensulfuron-methyl + Pretilachlor @ 10 g ha -1 at 8 DAT.…”

Section: Yield Attributes and Yieldsmentioning

confidence: 92%

“…Sudeshna et al,(2014) results revealed that maximum grain yield was recorded in 2 HW at 20 and 40 DAT and it was fb HW at 20 DAT along with Oxadiargyl @ 0.1 kg -1 . Morshed et al, (2015) reported that application of Pyrazosulfuran ethyl (150 g ha -1 ) at 15 DAT along with N @ 200.4 kg ha -1 showed higher no. of tiller hill -1 , total dry matter, panicle hill -1 , filled grains panicle -1 (125.20) and grain yield (6.46 t ha -1 ).…”

Section: Weed Management Practices In Boro Ricementioning

confidence: 99%

“…ha -1 . Morshed et al,(2015) reported that application of post-emergence herbicide i.e. Pyrazosulfuran ethyl (150 g ha -1 ) at 15 DAT recorded lowest weed population as well as WCE compared to pre-emergence herbicide i.e.…”

Section: Weed Management Practices In Boro Ricementioning

confidence: 99%

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A study on chemical weed management in boro rice: A review

Kumawat¹,

Kumar²,

Singh³

et al. 2018

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Characteristically boro rice is winter season, photo-insensitive, transplanted rice cultivated on supplemental irrigation, often under conditions, where farmers’ are not able to take any other rabi season crop. Butachlor, pretilachlor, bispyribac-sodium and anilofos are the most commonly used herbicides for control of weeds in boro rice. Weed competition is one of the prime yield limiting biotic constraints resulting in yield reduction to the tune of 28 to 45%. Echinochloa spp., Cynodon dactylon, Portulaca quadrifida and Cyperus spp. are the major weeds responsible for yield reduction in boro rice. However, continuous and indiscriminate use of herbicides for a longer period may result in buildup of problematic weeds and also development of herbicide resistance in weeds. It is therefore, necessary to review the performance of promising herbicides for chemical weed management to improve the production and productivity of boro rice under the climate change scenario.

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Section: Yield Attributes and Yieldsmentioning

confidence: 92%

Section: Weed Management Practices In Boro Ricementioning

confidence: 99%

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A study on chemical weed management in boro rice: A review

Kumawat¹,

Kumar²,

Singh³

et al. 2018

View full text Add to dashboard Cite

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Response of Eleusine indica to herbicides and N fertilizer in dry seeded rice

Mohtarrudin¹,

Gunavathy²,

Chuah³

et al. 2017

Afr. J. Agric. Res.

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Weed has become one of the most serious problems in dry seeded rice (DSR). To increase the competitiveness with weeds and achieve the optimum growth of rice, weed management in DSR needs an integration of herbicides and optimum nitrogen (N) fertilizer rates. In this study, the bioassay species were treated with a series of pre-emergence (pretilachlor and pendimethalin) and early post-emergence (propanil+thiobencarb) herbicide concentrations and N fertilizer. It was found that pretilachlor at an application rate of 0.25 and 0.50 kg ai ha -1 almost completely inhibit the emergence and shoot growth of E. indica by 100% inhibition, at 50, 100 and 150 kg ha -1 N, respectively, but it showed severe injury symptom to the root of rice seedlings. Meanwhile, pendimethalin and N fertilizer at moderate application rate gave a strong reduction of weed emergence (>50% inhibition) and shoot fresh weight (>85% inhibition), with negligible effect on the rice seedlings growth. Significant inhibitory effects on weed emergence (60% inhibition) and shoot growth (90% inhibition) also were noticed at the highest application rate of propanil + thiobencarb (3.6 kg ai ha -1 ) and N fertilizer (150 kg ha -1 N), with stimulation effects on the growth of rice seedlings. This promising effect showed combination of propanil + thiobencarb and N fertilizer (3.60 kg ai ha -1 propanil + thiobencarb + 150 kg ha -1 N) was the most efficient treatment for E. indica control in dry seeded rice.

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Effect of Nitrogen on Weed Infestation and Performance of Boro Rice Under Two Selected Herbicides

Cited by 2 publications

References 5 publications

A study on chemical weed management in boro rice: A review

A study on chemical weed management in boro rice: A review

Response of Eleusine indica to herbicides and N fertilizer in dry seeded rice

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