Weed dynamics and yield of direct seeded upland autumn rice (oryza sativa l.) Varieties as influenced by integrated weed and nutrient management practices

Goswami, Gunajit; Deka, Nivedita; Ojha, Nayan Jyoti

doi:10.18805/ijare.a-4938

Cited by 5 publications

(6 citation statements)

References 4 publications

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“…Among the BLW, Eclipta alba (L.) and Ammania baccifera (L.) were the dominant species in direct wet seeded rice ecosystem. Such broad spectrum of weeds in direct wet seeded rice ecosystem was also reported by Parameshwari et al, (2015), Raghavendra et al (2015), Goswami et al (2018) and Rathika and Ramesh (2019).…”

Section: Effect On Weeds Weed Florasupporting

confidence: 73%

Weed Dynamics and Productivity of Direct Wet Seeded Rice under Different Weed Management Practices

Kokilam¹,

Rathika²,

Ramesh³

et al. 2020

IJARe

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Background: Weeds are the major biotic constraint to reduce the rice productivity in direct wet seeded rice. Weed infestation and competition are severe in direct wet seeded rice as compared to transplanted rice, because of the simultaneous growth of both crops and weeds. The yield loss due to weeds varies from 40 to 100 per cent in direct seeded rice. Use of herbicides either singly or in combination with manual or mechanical weeding in puddled direct seeded rice has been highlighted by several workers. Use of alternative herbicides with wide spectrum control of the weeds in direct seeded puddled rice is the need of the present time. The present study aimed to evaluate different weed management practices in direct wet seeded rice under sodic soil.Methods: A field experiment was conducted during Samba season (Rabi) 2016-17. to evaluate the weed management practices in direct wet seeded rice under sodic soil. The treatments comprised of different combination of weed management practices viz., pre emergence, early post emergence herbicides, mechanical weeding and hand weeding twice were tested. Total weed density and weed dry weight, weed control efficiency, yield parameters and yield of rice were recorded. Result: Among the different weed management practices, the lowest total weed density, total weed dry weight and higher WCE, yield attributes, grain and straw yields were registered under application of PE pyrazosulfuron ethyl 25 g/ha fb EPOE bispyribac sodium 25 g/ha. This was followed by application of PE pretilachlor 0.75 kg/ha fb EPOE bispyribac sodium 25 g/ha.

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Section: Effect On Weeds Weed Florasupporting

confidence: 73%

Weed Dynamics and Productivity of Direct Wet Seeded Rice under Different Weed Management Practices

Kokilam¹,

Rathika²,

Ramesh³

et al. 2020

IJARe

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“…. These results are corroborated by Chakraborti [18] and Goswami et al [19]. was not significant in both the years.…”

Section: No Of Panicles (M -2supporting

confidence: 75%

Effect of Nutrient and Weed Management Practices on Growth, Yield Parameters and Yield of Semi Dry Rice in Central Telangana One

Naganjali

Vani

Madhavi

et al. 2022

IJPSS

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A field experiment was carried out at College Farm, Agril. College, Aswaraopet, Bhadradri Kothagudem Dist. The experimental site was sandy clay loam soil. The experiment was laid out in a split plot design with three replications comprising of three nutrient (chemical fertilizer alone and integration of fertilizers with organic manures) and four weed management practices (Control, combination of pre/early post-emergence and post-emergence herbicides along with hand weedings) in semi dry rice during kharif 2016 and 2017.Application of integrated nutrient and weed management recorded significantly superior growth and yield parameters and yield compared to sole application of herbicides or control. Plant height, dry matter production, no. of panicles m-2, no. of filled grains panicle-1, test weight, grain and straw yield and harvest index were higher with 75% RDF+25% N through vermicompost and Bispyribac sodium 10% SC @25 g ha-1 (Pre-Emg.) fb (Pyrazosulfuron ethyl 10 % WP @ 25 g ha-1 + 2, 4-D 80% WP @ 0.5 kg a.i ha-1) + HW @ 50 DASat par with 75% RDF + 25% N through FYM and Bispyribac sodium 10% SC @25 g ha-1 (Pre-Emg.) fb Hand weeding @ 20, 40 DASas compared to 100% RDF and control.

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“…of panicles m -2 produced was due to efficient weed control through critical period of crop weed competition during reproductive phase led to fertilization and produced less sterile spikelet. These results are corroborated by Chakraborti et al (2017) and Goswami et al (2018).…”

Section: No Of Panicles (M -2 )supporting

confidence: 66%

Response of Nutrient and Weed Management Techniques on Semi Dry Rice Growth, Yield Parameters and Yield in Telangana

K. Naganjali,

K. P. Vani,

M. Madhavi

et al. 2023

EEC

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At College Farm, Agricultural College, Aswaraopet, Bhadradri Kothagudem District, a field experiment was conducted on sandy clay loam soil in semi-dry rice during the kharif seasons of 2016 and 2017. The experiment was set up in a split plot design with three replications of each nutrient (chemical fertilizer alone and the combination of fertilizers with organic manures) and four weed management practices (Control, combination of pre/early post-emergence and post-emergence herbicides, along with hand weeding). Results of pooled analysis revealed that 75% RDF +25% N through vermicompost and Bispyribac sodium 10 SC@25 g ha-1 (PE) fb (Pyrazosulfuron ethy l10WP@25gha-1+2,4-D80WP@0.5kg a.i ha-1) + HW@ 50 DAS recorded significantly highest dry matter production, no. of panicles m-2, no. of filled grains panicle1, test weight, grain and straw yield.

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Weed dynamics and yield of direct seeded upland autumn rice (oryza sativa l.) Varieties as influenced by integrated weed and nutrient management practices

Cited by 5 publications

References 4 publications

Weed Dynamics and Productivity of Direct Wet Seeded Rice under Different Weed Management Practices

Weed Dynamics and Productivity of Direct Wet Seeded Rice under Different Weed Management Practices

Effect of Nutrient and Weed Management Practices on Growth, Yield Parameters and Yield of Semi Dry Rice in Central Telangana One

Response of Nutrient and Weed Management Techniques on Semi Dry Rice Growth, Yield Parameters and Yield in Telangana

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