Integrated weed management approach to improve weed control efficiencies for sustainable rice production in dry-seeded systems

Chauhan, Bhagirath Singh; Ahmed, Sharif; Awan, Tahir Hussain; Jabran, Khawar; Manalil, Sudheesh

doi:10.1016/j.cropro.2015.01.012

Cited by 35 publications

(20 citation statements)

References 26 publications

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“…The use of mixtures of two or more herbicides may significantly modify the behavior of every single herbicide in the mixture and these interactions often result in a decrease or an increase in the activity of the mixed herbicides compared with activities when each one of them is applied alone (Maity and Mukherjee, 2008). At the field level, weed flora normally consists of many species with varying levels of herbicide sensitivity; therefore, it is often needed to apply more than one herbicide for effective control (Chauhan et al 2015;Mahajan and Chauhan, 2015). Weed flora in the previous crop, DSR, was very complex and diverse in the same field and wheat cultivation in the sequence with DSR also recorded a diverse weed infestation.…”

Section: Yield and Yield Componentsmentioning

confidence: 99%

“…These results suggest that farmers can apply this herbicide alone if their wheat fields are infested by only broadleaf weeds. In the field, broadleaf weeds usually emerge later than grass and sedge weeds (Ahmed et al 2015;Chauhan et al 2015); therefore, to effective controlling broad leaf weeds in wheat, 2,4-D may be applied at 25 to 30 DAS to keep fields free from broad leaf weeds during critical crop-weed competitive periods, which range from 15-45 DAS. 2,4-D is very effective against broadleaf weeds, but not sedges as reported by Miller and Norsworthy (2015) and Schulz and Segobye (2016).…”

Section: Yield and Yield Componentsmentioning

confidence: 99%

“…Cyperus rotundus L. is the most dominant weed in DSR systems Chauhan et al 2015;Singh et al 2006). Wheat grown in the dry seeded aman rice-wheat sequence is found severely infested with this weed (Alam et al 2017).…”

Section: Introductionmentioning

confidence: 99%

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Ahmed

Alam

Awan³

et al. 2020

J. Res. Weed Sci.

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Herbicides have increasingly become a key component on crop production system because they offer the easiest, cheapest and timely weed management, resulting in higher yield and profit. A single herbicide application in field conditions in most of the cases is not enough to control diverse weed flora. In such situations, tank mixtures of herbicides may provide a prime option to control a broad spectrum of weeds. Cyperus rotundus L., a world's most tenacious weed, is becoming a problematic weed in conservation crop production systems. A two-year study (2013/14 and 2014/15) was established in SouthWest Bangladesh to evaluate the effect of application timings and sole and tank mixtures of 2,4-D and ethoxysulfuron herbicides on weed suppression and performance of wheat. 2,4-D and ethoxysulfuron were applied solely and as tank mixtures at 10, 20, and 30 days after sowing (DAS) and these treatments were compared with completely weedy and weed-free treatments. In controlling weeds, tank mixtures of 2,4-D and ethoxysulfuron performed better than their sole application at any application timing; however, at the earliest time (10 DAS), the combination created toxicity to wheat plants, resulting in 10-22% and 11-32% less wheat plant density and biomass, respectively, compared with their sole application. Tank-mix herbicides reduced C. rotundus biomass by 87-91%, 88-100%, and 79-80% when applied at 10, 20, and 30 DAS, respectively, compared with the weedy plots. The plots applied with tank mixtures at 20 and 30 DAS produced wheat grain yield similar to that of weedfree plots, indicating that the tank mixture of 2,4-D plus ethoxysulfuron herbicides is the best option to control weeds without any toxicity to wheat plants.

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Section: Yield and Yield Componentsmentioning

confidence: 99%

Section: Yield and Yield Componentsmentioning

confidence: 99%

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Untitled

Ahmed

Alam

Awan³

et al. 2020

J. Res. Weed Sci.

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“…In some states, even higher wages are charged for the labourers to be engaged for weeding than for normal farming works. Chauhan et al [6] reported that the paucity of labourers coupled with higher rates of wage has made hand weeding impractical or less practical in weed management practices. As alternative weed management in agricultural lands is rapidly shifting towards chemical methods because herbicides are the most effective and economically acceptable [7,8].…”

Section: Introductionmentioning

confidence: 99%

Efficacy of Herbicides against Broad-spectrum Weed Floras and Their Effect on Non-target Soil Micro-organisms and Productivity in Sugarcane (Saccharum sp.)

Kundu

Mondal

Garai

et al. 2020

CJAST

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Weeds pose a major challenge at the initial stages of sugarcane and when uncontrolled cause high yield losses. This study was undertaken to define a better and cost-effective weed management strategy. Field experiment was carried out at District Seed Farm (C Unit) of Bidhan Chandra Krishi Viswavidyalaya, West Bengal, India (22°97'N latitude and 88°43'E longitude with the 9.75 meters above the mean sea level) under natural weed infestations in sugarcane in 2017–2018 and 2018-19. The objective was to evaluate the efficacy of herbicides on weed floras, non-target soil organisms and productivity of sugarcane (cv. CoS 98231). The pattern of nutrient uptake by weed species was also itemized. The treatments were comprised of four doses of Atrazine 50% WP (1.0, 2.0, 3.0 and 4.0 kg a.i. ha-1), Trifloxysulfuron-Na (10% OD) 30 g a.i. ha-1 and weedy check within a randomized complete block design, replicated four times. The results revealed that among the tested herbicides, the utmost dose of Atrazine was most efficient against grassy as well as broadleaf weeds. The higher weed control efficiency (> 60%) and cane yield (85.41 t ha-1) were recorded from treatment received Atrazine 4000 g a.i. ha-1 followed by its lower doses. Owing to an efficient controller of diversified weeds same herbicide treated plot removed the least amount essential primary nutrients irrespective of all weed species. Herbicides did not show any phytotoxicity symptoms on sugarcane throughout the observation period. Based on overall performance, the Atrazine 50% WP (4000 g a.i. ha-1) may be considered as the best substitute for others post-emergent herbicide against the complex weed floras in sugarcane.

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“…Direct seeding of rice is an alternative to transplanted rice that could reduce the labor requirements for crop establishment and the demand for irrigation water [1,2]. Direct seeded rice can be established either dry-seeded or wet-seeded, however, dry-seeding is becoming popular among the farmers of many Asian countries because of this systems is conducive to mechanization [3,4]. In this systems, the crop can be established either zero tillage or strip tillage or full dry tillage (conventional) which support the principle of conservation agriculture (CA).…”

Section: Introductionmentioning

confidence: 99%

Performance of Aus Rice in Different Tillage Systems and Crop Establishment Method in Southwest Bangladesh

Bari

Ahmed²

2018

JES

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High labor wage and irrigation water scarcity are the major constraints to becoming rice production less profitable and unsustainable in Bangladesh. To address these problems, rice production needed less water and less labor consuming production technologies. In traditional rice production systems which is puddled-transplanted rice (PTR), a significant amount of water and labor are used for tillage (wet) and transplanting operations.A farmers' participatory on-farm trial was conducted to evaluate the performance of aus rice at different tillage systems and crop establishment methods in the southern part of Bangladesh. Wet tillage (puddled systems) to dry-tillage and transplanted rice to direct dry-seeded rice (DSR) may have the potential to reduce production cost by using less labor and water, resulting in higher profit. The trial examined tillage systems (strip tillage, reduced tillage and puddling) and crop establishment methods (direct dry-seeded and transplanted) in six farmers' fields in aus 2015.Crop established by reduced-and strip-tillage in DSR conditions reduced crop duration by 7 days compared to PTR. Grain yield (4.4-4.6 t ha -1 ) was similar in DSR which is established by reduced-and strip-tillage conditions and PTR; however, total production cost in DSR was 15-18% lower than the PTR. Slightly higher but significantly similar gross income was recorded in PTR than DSR, however, net profit was significantly lower in PTR and it was due to higher production cost involvement. DSR has the potentiality of similar yield to PTR and reduces production cost which increases the net profit of rice production.

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Integrated weed management approach to improve weed control efficiencies for sustainable rice production in dry-seeded systems

Cited by 35 publications

References 26 publications

Untitled

Untitled

Efficacy of Herbicides against Broad-spectrum Weed Floras and Their Effect on Non-target Soil Micro-organisms and Productivity in Sugarcane (Saccharum sp.)

Performance of Aus Rice in Different Tillage Systems and Crop Establishment Method in Southwest Bangladesh

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