Evaluation of flucetosulfuron and ready-mix of penoxsulam + bentazone as post-emergent weed control options in direct seeded and transplanted rice

2019 ◽  
Vol 11 (3) ◽  
Author(s):  
Rajender Singh Chhokar ◽  
Ramesh Kumar Sharma ◽  
Subhash Chander Gill ◽  
Ankur Chaudhary ◽  
Ram Kumar Singh
Keyword(s):  
Weed Control ◽  
Transplanted Rice ◽  
Control Options ◽  
Direct Seeded

scholarly journals Crop Establishment and Weed Control Options for Sustaining Dry Direct Seeded Rice Production in Eastern India

Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 389 ◽  
Author(s):  
Sanjoy Saha ◽  
Sushmita Munda ◽  
Sudhanshu Singh ◽  
Virender Kumar ◽  
Hemant Kumar Jangde ◽  
...  
Keyword(s):  
Weed Control ◽  
Weed Management ◽  
Dry Weight ◽  
Net Income ◽  
Crop Establishment ◽  
Transplanted Rice ◽  
Establishment Method ◽  
Control Options ◽  
Wide Scale ◽  
Direct Seeded

Dry direct seeded rice (DSR) has emerged as an economically viable alternative to puddled transplanted rice to address emerging constraints of labor and water scarcity and the rising cost of cultivation. However, wide adoption of DSR is seriously constrained by weed management trade-off. Therefore, the availability of effective weed control options is critical for the success and wide-scale adoption of DSR. A field study was conducted at ICAR-National Rice Research Institute, Cuttack, India, in the dry seasons of 2015 and 2016 to evaluate the performance of three crop establishment methods and five weed control practices on weed management, productivity, profitability and energetics of dry DSR. The results demonstrated that weed density and weed dry weight was lower in drill seeding than broadcast seeding by 26–36% and manual line-seeding by 16–24%, respectively, at 30 and 60 days after crop emergence (DAE). Among herbicides, post-emergence application (17 DAE) of azimsulfuron was most effective in controlling weeds compared to early post application of bispyribac-sodium and bensulfuron-methyl+pretilachlor. Weed competition in the weedy check treatment resulted 58% reduction in rice yield. Among establishment methods, drill-seeding was most profitable with US $ 685 ha−1 higher net income than broadcast seeding primarily due to higher yield. Among weed control treatments, azimsulfuron was most profitable resulting in US $ 160 and 736 ha−1 higher net income than weed free and weedy check, respectively. The specific energy was lowest for drill seeding among establishment method and azimsulfuron among weed control practices, suggesting lowest energy consumed in producing per unit of grain yield.

scholarly journals Impact of sowing methods and weed control practices on yield and economics of wet direct seeded rice

2021 ◽  
Vol 58 (3) ◽  
pp. 375-383
Author(s):  
BS Satapathy ◽  
B Duary ◽  
Sanjoy Saha ◽  
S Munda ◽  
D Chatterjee
Keyword(s):  
Field Experiment ◽  
Grain Yield ◽  
Weed Control ◽  
Direct Seeding ◽  
Weed Competition ◽  
Weed Species ◽  
Cyperus Difformis ◽  
Control Options ◽  
Direct Seeded ◽  
Crop Weed Competition

Wet direct seeding is proved as a viable alternate to conventional transplanting method of rice. Maintenance of optimum population by adopting an appropriate sowing method followed by judicious weed control practices ensures profitability of wet direct seeded rice (W-DSR). A field experiment was carried out to find out a suitable sowing technique and weed control options for enhancing productivity and economics of W-DSR. The W-DSR was infested with twelve numbers of weed species comprising of eight families under different sowing methods. The composition of sedges, broadleaved (BLW) and grassy weeds was 83.07, 11.0 and 5.93%, respectively. Irrespective of sowing methods, weeds such as, Echinochloa glabrescens and Leptochloa chinensis among grasses, Cyperus difformis and Scirpus juncoides among sedges and Lindernia anagallis among BLW were dominant. Drum seeding recorded 6.9 and 12.7% higher gross and net return, respectively than broadcasting, but it was at par with spot seeding. Highest B: C ratio of 2.07 was recorded with drum seeding, whereas spot seeding recorded lowest B: C ratio (1.99). Crop-weed competition caused 31.7% reduction in grain yield with W-DSR. Application of early post-emergent herbicide bensulfuron-methyl + pretilachlor @ 60+600 g/ha at 10 DAS, azimsulfuron @ 35 g/ha at 20 DAS, and bispyribac sodium @ 30 g/ha at 20 DAS recorded increase in grain yield 40.3, 40.1 and 39.8%, respectively over the weedy check. Ready mix bensulfuron-methyl + pretilachlor @ 60+600 g/ha at 10 DAS registered highest B: C ratio (2.16) but it did not vary significantly with bispyribac sodium @ 30 g/ha and azimsulfuron @ 35 g/ha.

Adoption Status of Direct Seeded Rice Technology by the Farmers of Punjab

2022 ◽  
Vol 58 (1) ◽  
pp. 76-80
Author(s):  
Ramandeep Kamboj ◽  
Dharminder Singh ◽  
Lakhwinder Kaur
Keyword(s):  
Rice Crop ◽  
New Technique ◽  
Nutrient Deficiencies ◽  
Climatic Regions ◽  
Transplanted Rice ◽  
Direct Seeded ◽  
Recommended Practices ◽  
A New Technique ◽  
Paddy Cultivation

Direct-seeded rice (DSR) is a possible alternative to conventional puddled transplantedrice, where rice crop is seeded directly in non-puddled fields. The study was conducted toascertain the adoption status of recommended practices of DSR. Personal interviews wereconducted to collect data from randomly selected 210 farmers from three districtsrepresenting different agro-climatic regions of Punjab. Study revealed that selected farmershad adopted DSR on 49.20 per cent of their total area under paddy cultivation. Slightlyhigher number of selected farmers had adopted Tar-Wattar, a new technique of DSR overdry soil method. Only 18.52 per cent respondents had applied first irrigation as perrecommendations of Tar-Wattar method, whereas majority (67.59%) had applied firstirrigation before 21 days. 26.67 per cent farmers had adopted most suitable variety PR-126 and sown it at recommended time. However, in case of other varieties, majority offarmers did not follow recommended time of sowing. A smaller number of farmers haveapplied zinc, iron and sulphur fertilizers to ameliorate micro nutrient deficiencies. Averageyield of others varieties and PR 126 were found to be nearly identical, but due to lessercost of cultivation in DSR as compared to transplanted rice, adopter farmers’ fetched highernet return.

Dissipation of Pendimethalin in Soil Under Direct Seeded and Transplanted Rice Field

2019 ◽  
Vol 104 (2) ◽  
pp. 293-300
Author(s):  
Amanpreet Makkar ◽  
Pervinder Kaur ◽  
Paawan Kaur ◽  
Makhan S. Bhullar
Keyword(s):  
Rice Field ◽  
Transplanted Rice ◽  
Direct Seeded

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.

Nitrogen Fertilization of Direct‐Seeded Flooded vs. Transplanted Rice: II. Interactions among Canopy Properties

Crop Science ◽  
1990 ◽  
Vol 30 (6) ◽  
pp. 1284-1292 ◽  
Author(s):  
M. Dingkuhn ◽  
H. F. Schnier ◽  
S. K. De Datta ◽  
K. Dörffling ◽  
C. Javellana ◽  
...  
Keyword(s):  
Nitrogen Fertilization ◽  
Transplanted Rice ◽  
Direct Seeded

Rice weed control: current technology and emerging issues in temperate rice

1994 ◽  
Vol 34 (7) ◽  
pp. 1021 ◽  
Author(s):  
JE Hill ◽  
RJ Jr Smith ◽  
DE Bayer
Keyword(s):  
United States ◽  
Weed Control ◽  
Cultural Practices ◽  
Management Strategies ◽  
The United States ◽  
Weed Species ◽  
Rice Culture ◽  
Emerging Issues ◽  
Direct Seeded ◽  
The Cost

Among temperate rice areas, the United States and Australia are most similar in climate and in the mechanisation of rice culture. Many weed problems, even weed species invading rice, are common to both countries; and the present technology for weed control as well as concern for the impact of these technologies to environmental quality, herbicide resistance, and other weed-related issues bear many similarities. Application of current, and any new, technologies to emerging issues in US rice weed control will therefore be directly relevant to rice production in Australia and all other temperate areas struggling with the same challenges. Weeds are a significant problem in temperate rice culture. In the United States, rice is mechanically direct-seeded, allowing weeds to germinate and establish with the crop. In the last 15 years weed growth and competition has been increased by the adoption of semi-dwarf cultivars, high N fertilisation, and, in water-seeded rice, shallow flooding. High rates, and often multiple applications, of herbicides have been necessary to maximise the yield potential of these cultural systems. Advances in cultural practices and herbicide technology have maintained, if not improved, weed control; but nearly 30 years of propanil use in the southern USA resulted in propanil-resistant barnyard grass Echinochloa crus-galli (L.) Beauv., and after 4 years of continuous use, bensulfuron resistance to 4 aquatic weed species was discovered in California. Although herbicides with different mechanisms of action are needed for alternation in resistance management strategies, fewer are likely to be available. Social and environmental concerns have slowed the development and registration of rice herbicides and increased the cost of controlling weeds. Water quality deterioration from ricefield tailwaters, drift to sensitive crops, the cost of renewing registration in aquatic systems, and weed resistance all forecast reduced herbicide use in rice. Neither cultural practices nor herbicides alone can solve weed problems in direct-seeded, mechanised rice culture. With fewer herbicides and a cultural system highly vulnerable to weed losses, integrated management strategies with better information on which to base weed control decisions will be needed to solve weed problems in temperate rice.

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