scholarly journals Evaluation of Florpyrauxifen-Benzyl Herbicides for Control on Common Weeds in Transplanted Rice

2021 ◽  
Vol 1 (1) ◽  
pp. 590-596
Author(s):  
Abdul Rizal ◽  
Dyah Arbirawati
Keyword(s):  
Metsulfuron Methyl ◽  
Rice Plants ◽  
Central Java ◽  
Transplanted Rice ◽  
Experimental Area ◽  
Knapsack Sprayer ◽  
Jet Nozzle ◽  
Hand Weeding

The research to test the effectiveness of the herbicide Florpyrauxifen-Benzylin in controlling weeds in rice was carried out in Sragen, Central Java. March to August 2021. The herbicides tested are: T1) Florpyrauxifen-Benzyl 400 ml/ha, T2) Florpyrauxifen-Benzyl 600 ml/ha, T3) Florpyrauxifen-Benzyl 800 ml/ha, T4) Florpyrauxifen-Benzyl 1000ml/ha, T5) Aryloxyphenoxy propionate 800 ml/ha, T6) Penoxsulam 800 ml/ha, T7) Natrium Byspiribac 300 ml/ha T8) Metsulfuron Methyl, T9) Hand Weeding and T10) Untreated. The herbicides were applied with the help of a knapsack sprayer by using a T-jet nozzle. The calibration of the knapsack sprayer was done by spraying on a non-experimental area. The volume of water used for spray was 300 L per ha. The results showed that the application of florpyrauxifen-benzyl in various doses did not show toxicity to rice plants. application of florpyrauxifen-benzyl starting at a dose of 600 ml/ha had the same effectiveness in controlling weeds as companion herbicides. At the end of the study, E. crus-galli and L. chinensis still seemed to dominate all plots in all herbicide applications.

IMPACT OF WHEAT ESTABLISHMENT METHODS AND WEED MANAGEMENT PRACTICES ON WEED FLORA, YIELD AND NUTRIENT UPTAKE OF WHEAT IN RICE-WHEAT CROPPING SYSTEM

2019 ◽  
Vol 6 (02) ◽  
Author(s):  
MOHAN SINGH ◽  
OMBIR SINGH ◽  
ROHITASAV SINGH
Keyword(s):  
Nutrient Uptake ◽  
Weed Management ◽  
Conventional Tillage ◽  
Research Centre ◽  
Zero Tillage ◽  
Phalaris Minor ◽  
Weed Population ◽  
Metsulfuron Methyl ◽  
Transplanted Rice ◽  
Weed Flora

A field experiment was conducted at the Crop Research Centre of Govind Ballabh Pant University of Agriculture and Technology Pantnagar, Udham Singh Nagar during continuous two years to study the weed flora, yield and nutrient uptake of wheat (Triticum aestivum L.) under different wheat establishment methods in main plots and seven weed management in sub plots. Phalaris minor was the most dominant weed at 60 DAS contributed 55.0 per cent of total weed population. Melilotusindica was the major non grassy weeds in wheat which contributed 11 per cent to total weed population during respective years. Sowing of wheat with zero tillage significantly reduced the Phalaris minor density as compared to conventionally tilled wheat after transplanted rice, 60 per cent Phalaris minor emerged from 0-3 cm in reduced and conventional tillage where as in zero tillage after transplanted rice there was 55 per cent emergence from 0-3 cm layer.The highest grain yield was obtained in two hand weedings done at 30 and 60 DAS and was at par with Isoproturon 1.0 kg ha-1 + Metsulfuron methyl 4 g ha-1 at 30 DAS and Clodinafop – Propargyl 60 g ha-1 at 30 DAS fb. Metsulfuron methyl 4 g ha-1 at 37 DAS. Zero tillage resulted in significantly higher uptake of NPK by wheat plants as compared to conventional tillage, whereas reduced tillage recorded minimum NPK, which was significantly lower over the other treatments of wheat establishment methods.

scholarly journals Economics of Weed Control Methods in Transplanted Rice Fields in Mid-hill of Nepal

2020 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Robinson Adhikary ◽  
Bishnu Bilas Adhikari ◽  
Bishnu Prasad Kandel
Keyword(s):  
Weed Control ◽  
Computer Software ◽  
R Package ◽  
Cost Ratio ◽  
Block Designs ◽  
Control Methods ◽  
Benefit Cost Ratio ◽  
Transplanted Rice ◽  
Hand Weeding ◽  
Benefit Cost

To assess economic of different weed control methods on transplanted rice, a research was conducted at farmers’ fields, Bhanu-11, Rupakot, Nepal during the rainy season of 2017. The experiment was laid out using single factorial Randomized Complete Block Designs (RCBD) with three replications of ten treatments as one hand weeding at 21 Days After Transplanting (DAT) (T1); two hand weedings at 21 and 42 DAT (T2); three hand weedings at 21 42 & 63 DAT (T3); single conoweeding at 21 DAT (T4); double cono weedings at 21 &42 DAT (T5); triple cono weedings at 21, 42 &63 DAT (T6); butachlor as pre emergence (T7); butachlor with single manual weeding at 21 DAT (T8); butachlor with double manual weedings at 21 & 42 DAT (T9) and weedy check (T10). All collected data were subjected to analyzed by computer software R package. The results revealed that butachlor as pre-emergence (T7), showed that significantly higher gross return (Rs. 167.51thousand/ha), net profit (Rs. 96.11thousand/ha) and higher benefit-cost ratio (2.346), which is economically viable and profitable and can recommend to the farmers for rainfed lowland condition.

Effect of herbicides and herbicide mixtures on weeds in wheat

2016 ◽  
Vol 50 (2) ◽  
Author(s):  
Dhirender Choudhary ◽  
P. K. Singh ◽  
N. K. Chopra ◽  
S. C. Rana
Keyword(s):  
Triticum Aestivum ◽  
Weed Control ◽  
Harvest Index ◽  
Dry Weight ◽  
Field Investigation ◽  
Weed Density ◽  
Metsulfuron Methyl ◽  
Weed Control Efficiency ◽  
Herbicide Mixtures ◽  
Hand Weeding

A field investigation was carried out to evaluate the effect of herbicides and their mixtures on weeds in wheat (<italic>Triticum aestivum</italic> L.) cv. PBW-343. Minimum weed density per m<sup>2</sup> and weed dry weight (5.13 and 17.31g) was recorded with sulfosulfuron at 25g ha<sup>−1</sup> followed by clodinofop at 60g + metsulfuron methyl at 4g ha<sup>−1</sup> (5.19 and 18.45g), metribuzin at 200gha<sup>−1</sup>(5.85 and 25.98g), pendimethalin at 1000g fb 2,4-Dat400g ha<sup>−1</sup> (6.49 and 31.73g) and hand weeding twice(7.01 and 35g), respectively. Also, maximum weed control efficiency was recorded under sulfosulfuron at 25g ha<sup>−1</sup> (83.85%) followed by clodinofop at 60g + metsulfuron methyl at 4g ha<sup>−1</sup> (83.17%) and metribuzin at 200g ha<sup>−1</sup> (75.85%), respectively. All the weed control treatments recorded significantly higher harvest index than the weedy check (40.24). Among various herbicidal treatments, application of clodinofop at 60g + metsulfuron methyl at 4g ha<sup>−1</sup> recorded highest harvest index (41.91) followed by sulfosulfuron at 25 gha<sup>−1</sup> (41.83) and pendimethalin at 1000g fb2,4-Dat 400gha<sup>−1</sup> (41.25) respectively. The harvest index recorded under clodinofop at 60g + metsulfuron methyl at 4g ha<sup>−1</sup> and sulfosulfuron at 25 g ha<sup>−1</sup> was significantly at par with weed free (42.06).

scholarly journals Factors Influencing the Phytotoxicity of Cafenstrole to Transplanted Rice Plants in Paddy Fields.

2001 ◽  
Vol 46 (3) ◽  
pp. 169-174 ◽  
Author(s):  
Mitsuru Kanzaki ◽  
Kazuo Toriu ◽  
Hiromi Oishi ◽  
Norio Shirakawa
Keyword(s):  
Paddy Fields ◽  
Rice Plants ◽  
Transplanted Rice ◽  
Factors Influencing

scholarly journals Integrated weed management in transplanted rice: Options for addressing labor constraints and improving farmers’ income in Bangladesh

2021 ◽  
pp. 1-34
Author(s):  
Sharif Ahmed ◽  
Virender Kumar ◽  
Murshedul Alam ◽  
Mahbubur Rahman Dewan ◽  
Khairul Alam Bhuiyan ◽  
...  
Keyword(s):  
Grain Yield ◽  
Weed Control ◽  
Weed Management ◽  
Cost Effective ◽  
Integrated Weed Management ◽  
Control Cost ◽  
Control Practice ◽  
Net Returns ◽  
Transplanted Rice ◽  
Hand Weeding

Abstract In Bangladesh, weeds in transplanted rice are largely controlled by labor-intensive and costly manual weeding, resulting in inadequate and untimely weed control. Labor scarcity coupled with intensive rice production has triggered increased use of herbicides. These factors warrant a cost-effective and strategic integrated weed management (IWM) approaches. On-farm trials with transplanted rice were conducted during monsoon (‘Aman’) season in 2016 and 2017 and winter (‘Boro’) season in 2016 to 2017 in agroecological zones 11 and 12 with ten treatments - seven herbicide-based IWM options, one mechanical weed control-based option, and two checks – farmers’ current weed control practice and weed-free, to assess effects on weed control, grain yield, labor use, and profitability. Compared to farmers’ practice, herbicide-based IWM options with mefenacet+bensulfuron-methyl as preemergence (PRE) followed by (fb) either bispyribac-sodium or penoxsulam as postemergence (POST) fb one hand-weeding (HW) were most profitable alternatives, with reductions in labor requirement by 11 to 25 persons-day ha−1 and total weed control cost by USD 44 to 94 ha−1, resulting in net returns increases by USD 54 to 77 ha−1 without compromising on grain yield. In contrast, IWM options with bispyrbac-sodium or penoxsulam as POST application fb one HW reduced yields by 12 to 13% and profits by USD 71 to 190 ha−1. Non-chemical option with mechanical weeding fb one HW performed similarly to farmers’ practice on yield and profitability. We suggest additional research to develop feasible herbicide-free approaches to weed management in transplanted rice that can offer competitive advantages to current practices.

scholarly journals Effect of Novel Herbicides and Herbicide Mixtures on Yield and Economics of Transplanted Rice

2020 ◽  
pp. 159-163
Author(s):  
B. Venkatesh ◽  
Y. S. Parameswari ◽  
M. Madhavi ◽  
T. Ram Prakash
Keyword(s):  
Cost Ratio ◽  
Benefit Cost Ratio ◽  
Net Returns ◽  
Transplanted Rice ◽  
Plot Yield ◽  
Herbicide Mixture ◽  
Herbicide Mixtures ◽  
High Benefit ◽  
Hand Weeding ◽  
Benefit Cost

A field experiment was conducted during kharif, 2019 at Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad. The experiment done with twelve treatments and three replications. The study was taken to find out which herbicide mixture most effective in controlling of weeds leads to maximum yields with higher benefit cost ratio. The results revealed that, application of herbicide mixture florpyrauxifen-benzyl + cyhalofop-butyl 10% EC 150 g/ha PoE fb hand weeding at 40 days after transplanting (DAT) gave higher yields and net returns with high benefit cost ratio (B: C) which was statistically on par with minimum competitive plot. Unweeded plot yield was deviated about 48 % compare to florpyrauxifen-benzyl + cyhalofop-butyl 10% EC 150 g/ha PoE fb hand weeding at 40 days after transplanting.

scholarly journals Use of potted seedlings for reducing damage by rice water weevil in transplanted rice plants

2015 ◽  
Vol 50 (4) ◽  
pp. 115-126
Author(s):  
Takashi Motobayashi ◽  
Minoru Yoshida ◽  
Humiya Yamaguchi ◽  
koji Matsukawa
Keyword(s):  
Rice Plants ◽  
Rice Water Weevil ◽  
Transplanted Rice ◽  
Rice Water

scholarly journals Weed control efficiency and weed index as influenced by weed management practices in machine transplanted rice (Oryza sativa L.)

2016 ◽  
Vol 8 (4) ◽  
pp. 1947-1952
Author(s):  
R. B. Negalur ◽  
A. S. Halepyati
Keyword(s):  
Oryza Sativa ◽  
Weed Control ◽  
Weed Management ◽  
Management Practices ◽  
Oryza Sativa L ◽  
Dry Weight ◽  
Weed Population ◽  
Transplanted Rice ◽  
Hand Weeding ◽  
Row Space

Field experiment on effect of different weed management practices in machine transplanted rice (Oryza sativa L.) was conducted at ARS, Gangavathi, University of Agricultural Sciences, Raichur, Karnataka during kharif, 2012 and 2013 under irrigated condition in clay soil. Pooled mean indicated that, application of butachlor 50 EC fb passing of power operated low land rice weeder twice at 20 and 30 DAT with hand weeding in intra row space recorded significantly lower grassy weed population and dry weight at 40, 60 DAT and at harvest (1.98, 2.47, 2.97/0.25 m2 and 1.00, 1.20, 1.47 g /0.25 m2, respectively), sedge weed population and dry weight (2.61, 3.21, 3.52 /0.25 m2 and 1.19, 1.48, 1.71 g /0.25 m2, respectively) and broad leaved weed population and dry weight (1.68, 2.10, 2.52 / 0.25 m2 and 0.91, 1.06, 1.28 g /0.25 m2, respectively). Significantly higher WCE (87.53%), lower weed index (3.11 %), grain and straw yield (5160 and 6482 kg ha-1, respectively), gross and net returns (Rs. 92,212 and 50,410 ha-1, respectively), and B:C of 2.22 over unweeded check. Hence, application of butachlor 50 EC fb passing of power operated low land rice weeder at 20 and 30 DAT with hand weeding in intra row space was found to be the best weed control method as it recorded higher B:C. Present conventional manual weeding is which is not advantageous as it is costlier, time consuming and labour may trample and damage rice seedlings. Mechanical weeder and sequential application can overcome the same.

Evaluation of New Herbicide Molecules on Sustainable Weed Management in Transplanted Rice

2017 ◽  
Vol 104 (4 - 6) ◽  
Author(s):  
Deiveegan M ◽  
◽  
Muralikrishnasamy S ◽  
Ravichandran S ◽  
◽  
...  
Keyword(s):  
Weed Control ◽  
Weed Management ◽  
Tamil Nadu ◽  
Field Experiments ◽  
Clay Loam ◽  
Control Efficiency ◽  
Transplanted Rice ◽  
Breeding Station ◽  
Weed Control Efficiency ◽  
Hand Weeding

Field experiments were conducted during Rabi 2014, at Paddy Breeding Station, Tamil Nadu Agricultural University, Coimbatore to study the effect of pre-emergence / early post emergence herbicides along with hand weeding options on weed control in transplanted rice. The soil of the experimental field was clay loam in texture with pH 8.23. The performance of different pre-emergence application of butachlor 50% EC 1.5 kg a.i. ha-1, flucetosulfuron 10% WG in two doses at 20 g a.i ha-1 and 25 g a.i ha-1, pyrazosulfuron-ethyl 10% WB 75 g a.i ha-1, early post emergence application of penoxsulam + cyhalofop-butyl in two doses at 120 g a.i ha-1 and 135 g a.i. ha-1, bispyribac sodium 10% SC 35 g a.i ha-1 were evaluated along with pre-emergence application of pretilachlor 50% EC 1.0 kg a.i ha-1 + HW at 45 DAT, butachlor 50% EC 1.0 kg a.i ha-1 + HW at 45 DAT in comparison with hand weeding twice at 20 and 40 DAT, unweeded control and weed free check. The test variety used in this experiment was Co (R) 50. The experimental results revealed that weed free check had 100% weed control efficiency (WCE) in all the stages of crop growth. Among the various treatments tested, At 90 DAT, weed control efficiency (WCE) was maximum with early post emergence application of penoxsulam + cyhalofop-butyl135 g a.i. ha-1 (T5) recorded the maximum weed control efficiency of 85.78%. The number of productive tillers m-2 recorded ranged between 441 in T5 and 295 in unweeded control (T11). Grain yield ranged between 7717 kg ha-1 in weed free check (T12) and 5194 kg ha-1 in unweeded control (T11). The maximum straw yield of 9277 kg ha-1 was recorded in weed free check (T12). This was on par with early post emergence application of penoxsulam+ cyhalofop-butyl 135 g a.i. ha-1 (T5) and hand weeding twice at 20 and 40 DAT (T10) with 9206 kg ha-1 and 9019 kg ha-1.

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