Abstract
A field experiment was conducted on sandy loam soil at Crop Research Centre of Sardar Vallabhbhai Patel University of Agriculture & Technology, Meerut, U.P. during kharif, 2019 in randomised block design with three replications to study the effect of weed management practices on weed dynamics, nutrient uptake, productivity and profitability of transplanted rice. The treatments comprised of ten treatments of weed management i.e Weedy check, weed free, One hand weeding at 40 DAT+ Bispyribac-Na (25 g a.i/ha) at 15 DAT, Penoxsulam (22 g a.i/ha) at 20 DAT, One hand weeding at 15 DAT+ Penoxsulam (22 g a.i/ha) at 30 DAT, One hand weeding at 20 DAT+ Penoxsulam (22 g a.i/ha) at 35 DAT, One hand weeding at 25 DAT+ Penoxsulam (22 g a.i/ha) at 40 DAT, Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT, Pretilachlor (750 g a.i/ha) at 3 DAT+ Penoxsulam (22 g a.i/ha) at 25 DAT and Pretilachlor (750 g a.i/ha) at 3 DAT+ Penoxsulam (22 g a.i/ha) at 30 DAT were used for the experimentation and different observations were recorded during the crop growth period. The results indicated that the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT significantly reduced the weed population and dry weight over weedy check. The highest weed control efficiency, nutrient uptake and grain yield (38.80 q ha-1), were recorded with the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT, which established its superiority over rest of the herbicidal treatments. The nitrogen, phosphorus and potassium uptake by rice crop was also highest (77.06, 18.45 and 75.01 kg ha-1), with the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT and 42.45 and 22.50 per cent increase in grains and straw yield as compared to weedy check in rice crop. The application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT resulted into higher gross return, net return and B: C ratio. Thus the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT found better for productivity and profitability of rice crop.
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Claims 11
Claim · model-written summary
The herbicide sequence significantly reduced weed population relative to weedy check.
- Taxon
- rice
Oryza sativat0 - Treatment
- Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DATe0
- Interactor
- weede0weed
- Outcome
- weed populatione0
- Direction
- reducede0
- Comparator
- weedy checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT significantly reduced the weed population and dry weight over weedy check”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
The herbicide sequence significantly reduced weed dry weight relative to weedy check.
- Taxon
- riceOryza sativat0
- Treatment
- Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DATe0
- Interactor
- weede0weed
- Outcome
- weed population and dry weighte0
- Direction
- reducede0
- Comparator
- weedy checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT significantly reduced the weed population and dry weight over weedy check”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
The herbicide sequence produced the highest weed control efficiency.
- Taxon
- riceOryza sativat0
- Treatment
- Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DATe0
- Interactor
- weede0weed
- Outcome
- weed control efficiencye0
- Direction
- higheste0
- Comparator
- rest of the herbicidal treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest weed control efficiency, nutrient uptake and grain yield (38.80 q ha-1), were recorded with the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT, which established its superiority over rest of the herbicidal treatments”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
The herbicide sequence gave the highest rice grain yield of 38.80 q ha-1.
- Taxon
- riceOryza sativat0
- Treatment
- Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DATe0
- Outcome
- grain yielde0
- Direction
- higheste0
- Value
- 38.80 q ha-1e0
- Comparator
- rest of the herbicidal treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest weed control efficiency, nutrient uptake and grain yield (38.80 q ha-1), were recorded with the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT, which established its superiority over rest of the herbicidal treatments”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
Rice nitrogen uptake was highest at 77.06 kg ha-1 under the herbicide sequence.
- Taxon
- riceOryza sativae0
- Treatment
- Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DATe0
- Outcome
- nitrogen, phosphorus and potassium uptakee0
- Direction
- higheste0
- Value
- 77.06e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The nitrogen, phosphorus and potassium uptake by rice crop was also highest (77.06, 18.45 and 75.01 kg ha-1), with the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT”
Claim · model-written summary
Rice phosphorus uptake was highest at 18.45 kg ha-1 under the herbicide sequence.
- Taxon
- riceOryza sativae0
- Treatment
- Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DATe0
- Outcome
- nitrogen, phosphorus and potassium uptakee0
- Direction
- higheste0
- Value
- 18.45e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The nitrogen, phosphorus and potassium uptake by rice crop was also highest (77.06, 18.45 and 75.01 kg ha-1), with the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT”
Claim · model-written summary
Rice potassium uptake was highest at 75.01 kg ha-1 under the herbicide sequence.
- Taxon
- riceOryza sativae0
- Treatment
- Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DATe0
- Outcome
- potassium uptakee0
- Direction
- higheste0
- Value
- 75.01 kg ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The nitrogen, phosphorus and potassium uptake by rice crop was also highest (77.06, 18.45 and 75.01 kg ha-1), with the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT”
Claim · model-written summary
Rice grain yield rose 42.45 per cent against weedy check.
- Taxon
- riceOryza sativae0
- Treatment
- Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DATe0
- Outcome
- grains and straw yielde0
- Direction
- increasee0
- Value
- 42.45e0
- Comparator
- weedy checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT and 42.45 and 22.50 per cent increase in grains and straw yield as compared to weedy check in rice crop”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
Rice straw yield rose 22.50 per cent against weedy check.
- Taxon
- riceOryza sativae0
- Treatment
- Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DATe0
- Outcome
- straw yielde0
- Direction
- increasee0
- Value
- 22.50 per cente0
- Comparator
- weedy checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT and 42.45 and 22.50 per cent increase in grains and straw yield as compared to weedy check in rice crop”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
The herbicide sequence produced higher gross return, net return and benefit-cost ratio.
- Taxon
- riceOryza sativat0
- Treatment
- Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DATe0
- Outcome
- gross return, net return and B: C ratioe0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT resulted into higher gross return, net return and B: C ratio”
t0“rice (Oryza sativa L.)”
Claim · model-written summary
The authors recommend the herbicide sequence for rice productivity and profitability.
- Taxon
- riceOryza sativae0
- Treatment
- Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DATe0
- Outcome
- better for productivity and profitabilitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Thus the application of Pretilachlor (750 g a.i/ha) at 3 DAT + Penoxsulam (22 g a.i/ha) at 20 DAT found better for productivity and profitability of rice crop”
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See all 5 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.