Fenoxaprop-p-ethyl effect against weeds in late sown wheat

Singh, Prakriti; Singh, Raghuveer; Singh, A.K.; Nayak, R. L.; Singh, RR

doi:10.5958/0974-8164.2016.00082.4

Cited by 27 publications

(32 citation statements)

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“…Transplanted rice is infested with heterogeneous group of weeds consisting of grassy, broad leaved and sedges. Competition of weeds brought about 15-76 per cent reduction in grain yield of rice (Singh et al, 2004). Effective control of these weeds had increased the grain yield by 85.5 per cent (Mukherjee and Singh 2005).…”

Section: Introductionmentioning

confidence: 99%

Herbicides Weed Management Effect on Weed Dynamics, Crop Growth and Yield in Rice

Ranjan¹,

Dwivedi²

2020

Int.J.Curr.Microbiol.App.Sci

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Effect of herbicide and their combinations on crop growth, weed suppression and rice yield were evaluated at agronomic research farm of Rajendra Agricultural University, Bihar (Pusa) during Kharif season of 2009-10.Results revealed that weed control measures had a significant effects on weed population/m 2 . At 20 DAT minimum weed population/m 2 was recorded with Butachlor @ 1.5 kg a.i/ha (PE) which was significantly superior to weedy check (no weeding

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Section: Introductionmentioning

confidence: 99%

Herbicides Weed Management Effect on Weed Dynamics, Crop Growth and Yield in Rice

Ranjan¹,

Dwivedi²

2020

Int.J.Curr.Microbiol.App.Sci

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“…However, when herbicide is applied to the field, it not only control target weeds, directly or indirectly reaches the soil and later subjected to various processes viz., sorption, degradation and transport from the site of application. It is important to note that the members of this group are highly persistent in soil and even at low concentration cause residual effect on succeeding or rotational crops after winter wheat (Walker and Brown, 1982;Singh ., 2003;Sondhia ., 2013Sondhia ., , 2016. However, mesosulfuron-methyl exhibit very high to medium mobility, hence it is highly liable to leach to ground water or reach surface water by runoff and consequently, contaminate both surface and groundwater bodies.…”

Section: Introductionmentioning

confidence: 99%

Studies on the effect of day time application of herbicide mesosulfuron-methyl on soil microbial communities of wheat rhizosphere

Singh¹,

Kewat²,

Sondhia³

2018

JEB

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Aim : Methodology :Results : Interpretation :Mesosulfuron-methyl is one of the post emergence sulfonylurea herbicides and biotransformation is major process for its degradation. Persistence of mesosulfuron-methyl in soil mainly depends on temperature and microbial population. When herbicide is applied at different time of a day, it is exposed to different soil environmental factors. This interaction of mesosulfuron-methyl with soil environmental factors may affect microbial population differentially. Hence, the main objective of the study was to find how the day time application of mesosulfuron-methyl at different doses affects the microbial population of wheat rhizosphere.Five weed control treatments, comprising of three doses of mesosulfuronmethyl (10.0, 11.5 and 12.0 g ha ) including one hand weeding and weedy check as main plot treatments, were superimposed with three day times of herbicide application (8 a.m., 12 p.m. and 6 p.m.) as sub plot treatments and laidout in split plot design with four replications. Soil sample were collected at 5, 10, 30 and 80 days after herbicide application. The developed colonies were counted using serial dilution plate count technique and expressed as colony forming units (cfu) per gram dry soil.Bacterial population was significantly (14.20 and 16.14%) higher under 12 g ha mesosulfuron-methyl application over unweeded check at 10 and 30 days after, respectively. However, competition with dominant bacterial population and toxic effect of herbicide immediately after application inhibited fungal and actinomycete species. But with time, adapted fungal population was increased to 24.77 and 58.13% under 11.5 g ha , and 28.77 and 73.40% under12.0 g ha application at 30 and 80 days after application, respectively, over 10 days after application. While, the population of actinomycetes and was ever less under mesosulfuron-methyl in comparison to non-herbicidal treatments. However, fungal and actinomycetes population survived successfully in case of mesosulfuron application during noon hours even at higher doses due to less residue in soil. Population ofand actinomycetes (up to 80 days) as well as fungi (upto 10 days) was affected due to mesosulfuron doses except bacteria. Similarly, fungal and actinomycetes population was affected identically due to morning and evening application of mesosulfuron. On the contrary bacterial and population did not vary. herbicides to achieve higher weed control efficacy may also have ill effects on public health and environment. Whitcomb (1999) also reported that herbicides which inhibit acetolactate synthase enzyme, affect many species of higher plants as well as bacteria, fungi, yeasts and algae. Since photodegradation, photolysis and volatilization processes are not significant for mesosulfuron-methyl, hence instead of increasing its rate only, change in time of application during day hours (morning, noon and evening) could be taken into consideration so as to enhance activity of mesosulfuron-methyl against weeds even with lower dose. But when...

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“…2006). The weed flora under transplanted condition is very much diverse and consists of grasses, sedges and broad-leaf weeds causing yield reduction of rice crop up to 76% (Singh et al 2004). The effective control of weeds at initial stages (0-40 DAT) can help in improving the productivity of this crop.…”

Section: Introductionmentioning

confidence: 99%

Untitled

2017

IOSR JAVS

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The experiment was laid out in a randomized block design with 9 treatments and 3 replications. The results revealed that the major weed flora associated with the transplanted rice during kharif season was mainly comprised of Echinochloa colona, Cyperus iria L., Sphenoclea zeylanica Gaertn. and Ludwigia parvifloraRoxb. Bispyribac sodium @30 g a.i ha-1 applied at 25 days after transplanting was most effective to check all types of weed population and their growth. This treatment also gave the maximum grain yield (5549 kg ha-1) and straw yield (5991 kgha-1) of rice resulting in lowest weed index (5.61 %) among chemical herbicide treated plots. The highest grain and straw yield value as observed with application of bispyribac sodium @ 30 g a.i ha-1 was statistically at par with that of bispyribac sodium @ 25 g a.i ha-1 at 25 DAT. Therefore, bispyribac sodium @ 25 g a.i ha-1 applied at 25 days after transplanting may be recommended for weed management in transplanted kharif rice.

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Fenoxaprop-p-ethyl effect against weeds in late sown wheat

Cited by 27 publications

References 0 publications

Herbicides Weed Management Effect on Weed Dynamics, Crop Growth and Yield in Rice

Herbicides Weed Management Effect on Weed Dynamics, Crop Growth and Yield in Rice

Studies on the effect of day time application of herbicide mesosulfuron-methyl on soil microbial communities of wheat rhizosphere

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