Residual Effect of Slow Release Herbicide Formulations on Weed and Bhendi in the Rice-Bhendi Crop Sequence

Bommayasamy, N.; Chinnamuthu, C. R.

doi:10.29321/maj.2019.000271

Cited by 2 publications

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“…It might be owing to greater weed count and dry biomass production in preceding rice and bhendi crop which depleted more resource. Similar line of findings was reported by Bommayasamy and Chinnamuthu (2019;2022). Herbicide residual influence on crop growth attributes Herbicide residue of preceding crops weed management treatments exerted marked influence on leaf area index, plant biomass production, length of roots and its dry weight at 25 DAS (Table The impact of weed control treatments on dry matter production was well exhibited at 25 days after of sampling.…”

Section: Environment Conservation Journalsupporting

confidence: 91%

Effect of preceding rice herbicide residue towards control of weeds and urdbean productivity in rice -Bhendi-urdbean sequence under high rainfall area

Bommayasamy

Chinnamuthu

2022

ECJ

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Field experiment was conducted at Field Crops Research unit, ICAR- Central Island Research Institute, Bloomsdale, Port Blair during summer season, 2018. To study the preceding rice herbicide residual effect in control of weeds, growth and yield of urdbean in rice-bhendi-urdbean sequence under high rainfall area. At 20 DAS, grassy weeds (48.00 weeds/m2) were predominant species of weeds followed by sedges and broad leaf weeds of 29.67 and 22.67 nos./m2 respectively. Among the irrespective of weed control treatments, at 20 DAS, residual effect of 1.25 kg/ha butachlor at 3 DAP + manual weeding at 40 DAP in rice + two manual weeding on 20 and 40 DAS in both bhendi and urdbean recorded significantly lower grass, sedges, broad leaf weeds population and weed biomass of 11.67, 8.67, 6.67 weeds/m2 and 2.93, 2.02, 1.84 g/m2 respectively. Residual effect of 1.25 kg/ha butachlor applied at 3 DAP along with manual weeding at 40 DAP in rice + two manual weeding on 20 and 40 DAS in both bhendi and urdbean obtained 299 kg/ha higher seed yield as compared to weedy control.

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Section: Environment Conservation Journalsupporting

confidence: 91%

Effect of preceding rice herbicide residue towards control of weeds and urdbean productivity in rice -Bhendi-urdbean sequence under high rainfall area

Bommayasamy

Chinnamuthu

2022

ECJ

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“…This might be due to the residual effect of preceding crop and HW twice reduced the weed density and weed dry weight. Similar result was reported by Bommayasamy and Chinnamuthu (2019). Residual effect of butachlor at 1.25 kg/ha on 3 DAT fb HW on 40 DAT in rice+ HW twice at 20 and 40 DAS (T 6 ) in okra and blackgram recorded 8.75 and 7.44 times reduction in total weed dry weight under main and island ecosystem, respectively at 20 DAS.…”

Section: Total Weed Density and Dry Weightsupporting

confidence: 87%

Preceding (Rice-Okra) Crops Herbicide Residual Effects on Weed, Growth, Yield and Economics of Succeeding Blackgram Under Different Ecosystem

Bommayasamy

Chinnamuthu

2020

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Field experiments were carried out during summer seasons of 2017 and 2018 to study the effect of preceding (Rice-Okra) crops herbicide residue on weed, growth, yield and economics of succeeding blackgram. Residual effect of butachlor at 1.25 kg/ha on 3 days after transplanting (DAT) fb hand weeding (HW) on 40 DAT imposed in the first season rice crop and followed by hand weeding (HW) twice at 20 and 40 days after sowing (DAS) (T6) in okra and blackgram significantly influenced the reduction of weed dry weight accumulation by 8.75 and 7.44 times in mainland and island ecosystem, respectively at 20 DAS. The same treatment recorded the highest weed control efficiency (WCE) of 88.6, 86.5 and 86.2, 80.7 % observed at 20 and 40 DAS under mainland and island ecosystem, respectively. Among, the weed control treatments, residual effect of butachlor at 1.25 kg/ha on 3 DAT fb HW on 40 DAT to rice and HW twice at 20 and 40 DAS (T6) to okra and blackgram has recorded 64.8 and 65.0% higher seed yield of blackgram under main and island ecosystem, respectively.

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Residual Effect of Slow Release Herbicide Formulations on Weed and Bhendi in the Rice-Bhendi Crop Sequence

Cited by 2 publications

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Effect of preceding rice herbicide residue towards control of weeds and urdbean productivity in rice -Bhendi-urdbean sequence under high rainfall area

Effect of preceding rice herbicide residue towards control of weeds and urdbean productivity in rice -Bhendi-urdbean sequence under high rainfall area

Preceding (Rice-Okra) Crops Herbicide Residual Effects on Weed, Growth, Yield and Economics of Succeeding Blackgram Under Different Ecosystem

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