Abstract
Weed infestation is one of the major constraints limiting the productivity of direct seeded rice (DSR) and there is a need for sustainable and eco-friendly management options beyond sole reliance on herbicides. A field experiment was conducted during the Kharif season of 2022 at the Research Farm, Chatha, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu, to evaluate the effect of different weed management practices on growth parameters, weed density and nutrient uptake by weeds under direct seeded basmati rice. The experiment was laid out in a randomized block design with three replications on sandy loam soil. The results revealed that the weed-free treatment was significantly superior in enhancing crop growth parameters, followed by mechanical weeding using a cono-weeder at 20 and 40 days after sowing (DAS). Among the leguminous mulches used as a weed management strategy, surface mulching with dhaincha (Sesbania aculeata) through cutting was the most effective, significantly improving growth parameters over other mulching treatments. Weed density and nutrient uptake by weeds were significantly reduced in treatments involving mechanical weeding twice at 20 and 40 DAS and in surfacemulching with cut dhaincha. The study demonstrated that while conventional weed control methods like mechanical weeding and herbicide application remain effective for DSR, alternative eco-friendly approaches such as using leguminous cover crops like dhaincha, especially when cut and used as surface mulch, can also play a substantial role in suppressing weed growth and conserving nutrients for the rice crop. These findings highlight the potential of integrating leguminous mulching strategies into sustainable weed management practices for enhancing DSR productivity.
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Claims 8
Claim · model-written summary
Weed-free management produced superior rice growth parameters.
Not reportedComparator
Verbatim
e0“the weed-free treatment was significantly superior in enhancing crop growth parameters”
t0“basmati rice”
Claim · model-written summary
Mechanical cono-weeding at 20 and 40 DAS followed weed-free management for crop growth.
- Taxon
- basmati ricet0
- Treatment
- mechanical weeding using a cono-weeder at 20 and 40 days after sowing (DAS)e0
- Outcome
- crop growth parameterse1
Not reportedComparatorDirection
Verbatim
e0“followed by mechanical weeding using a cono-weeder at 20 and 40 days after sowing (DAS)”
e1“enhancing crop growth parameters”
t0“basmati rice”
Claim · model-written summary
Cut dhaincha surface mulch most effectively improved rice growth among leguminous mulches.
Verbatim
e0“surface mulching with dhaincha (Sesbania aculeata) through cutting was the most effective, significantly improving growth parameters over other mulching treatments”
t0“basmati rice”
Claim · model-written summary
Twice mechanical weeding reduced weed density.
- Taxon
- basmati ricet0
- Treatment
- mechanical weeding twice at 20 and 40 DASe0
- Interactor
- weedse0weed
- Outcome
- Weed densitye0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Weed density and nutrient uptake by weeds were significantly reduced in treatments involving mechanical weeding twice at 20 and 40 DAS”
t0“basmati rice”
Claim · model-written summary
Twice mechanical weeding reduced nutrient uptake by weeds.
- Taxon
- basmati ricet0
- Treatment
- mechanical weeding twice at 20 and 40 DASe0
- Interactor
- weedse0weed
- Outcome
- nutrient uptake by weedse0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Weed density and nutrient uptake by weeds were significantly reduced in treatments involving mechanical weeding twice at 20 and 40 DAS”
t0“basmati rice”
Claim · model-written summary
Cut dhaincha surface mulch reduced weed density.
- Taxon
- basmati ricet0
- Treatment
- surfacemulching with cut dhainchae0
- Interactor
- weedse0weed
- Outcome
- Weed densitye0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Weed density and nutrient uptake by weeds were significantly reduced in treatments involving mechanical weeding twice at 20 and 40 DAS and in surfacemulching with cut dhaincha.”
t0“basmati rice”
Claim · model-written summary
Cut dhaincha surface mulch reduced nutrient uptake by weeds.
- Taxon
- basmati ricet0
- Treatment
- surfacemulching with cut dhainchae0
- Interactor
- weedse0weed
- Outcome
- nutrient uptake by weedse0
- Direction
- reducede0
Not reportedComparator
Verbatim
e0“Weed density and nutrient uptake by weeds were significantly reduced in treatments involving mechanical weeding twice at 20 and 40 DAS and in surfacemulching with cut dhaincha.”
t0“basmati rice”
Claim · model-written summary
The authors recommend integrating leguminous mulching for sustainable weed management in direct seeded rice.
Verbatim
e0“integrating leguminous mulching strategies into sustainable weed management practices for enhancing DSR productivity”
t0“basmati rice”
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