Abstract
A field experiment was conducted during kharif 2006 at the Students’ Research Farm, Department of Agronomy, Punjab Agricultural University, Ludhiana on loamy sand soil to study effect of seed rate, spacing and herbicide use on weed management in direct seeded upland rice. Increasing seed rate from 40 to 60 kg/ha and row spacing from 15 to 20 cm, respectively, did not reduce the total weed population and weed dry matter at maturity. Seed rate and row spacing did not influence the grain yield significantly. However, all the weed control treatments i. e. application of pretilachlor 0.75 kg, pendimethalin 0.75 kg and thiobencarb 1.5 kg/ha significantly reduced the total weed population and weed dry matter production resulting in higher weed control efficiency as compared to weedy check. All weed control treatments produced significantly higher yield attributes which ultimately resulted in higher grain yield of paddy as compared to weedy check. Among different herbicidal treatments, thiobencarb 1.5 kg/ha produced highest grain yield of 5.51 t/ha which was at par with other weed control treatments. All weed control treatments reduced nitrogen uptake by weeds making it available to be used by the crop.
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Claims 10
Claim · model-written summary
Increasing seed rate did not reduce total weed population or weed dry matter at maturity.
- Taxon
- rice
Oryza sativat0 - Treatment
- seed rate from 40 to 60 kg/hae0
- Outcome
- total weed population and weed dry matter at maturitye0
- Direction
- did not reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing seed rate from 40 to 60 kg/ha and row spacing from 15 to 20 cm, respectively, did not reduce the total weed population and weed dry matter at maturity.”
t0“Effect of Seed Rate, Spacing and Herbicide Use on Weed Management in Direct Seeded Upland Rice (Oryza sativa L.)”
e1“However, all the weed control treatments i. e. application of pretilachlor 0.75 kg, pendimethalin 0.75 kg and thiobencarb 1.5 kg/ha significantly reduced the total weed population and weed dry matter production resulting in higher weed control efficiency as compared to weedy check.”
Claim · model-written summary
Increasing row spacing did not reduce total weed population or weed dry matter at maturity.
- Taxon
- riceOryza sativat0
- Treatment
- row spacing from 15 to 20 cme0
- Outcome
- total weed population and weed dry matter at maturitye0
- Direction
- did not reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing seed rate from 40 to 60 kg/ha and row spacing from 15 to 20 cm, respectively, did not reduce the total weed population and weed dry matter at maturity.”
t0“Effect of Seed Rate, Spacing and Herbicide Use on Weed Management in Direct Seeded Upland Rice (Oryza sativa L.)”
e1“However, all the weed control treatments i. e. application of pretilachlor 0.75 kg, pendimethalin 0.75 kg and thiobencarb 1.5 kg/ha significantly reduced the total weed population and weed dry matter production resulting in higher weed control efficiency as compared to weedy check.”
Claim · model-written summary
Seed rate and row spacing did not significantly influence grain yield.
- Taxon
- riceOryza sativat0
- Treatment
- Seed rate and row spacinge0
- Outcome
- grain yielde0
- Direction
- did not influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seed rate and row spacing did not influence the grain yield significantly.”
t0“Effect of Seed Rate, Spacing and Herbicide Use on Weed Management in Direct Seeded Upland Rice (Oryza sativa L.)”
e1“However, all the weed control treatments i. e. application of pretilachlor 0.75 kg, pendimethalin 0.75 kg and thiobencarb 1.5 kg/ha significantly reduced the total weed population and weed dry matter production resulting in higher weed control efficiency as compared to weedy check.”
Claim · model-written summary
Pretilachlor reduced weed population and dry matter relative to the weedy check.
- Taxon
- riceOryza sativat0
- Treatment
- pretilachlor 0.75 kge0
- Outcome
- total weed population and weed dry matter productione0
- Direction
- reducede0
- Comparator
- weedy checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of pretilachlor 0.75 kg, pendimethalin 0.75 kg and thiobencarb 1.5 kg/ha significantly reduced the total weed population and weed dry matter production resulting in higher weed control efficiency as compared to weedy check.”
t0“Effect of Seed Rate, Spacing and Herbicide Use on Weed Management in Direct Seeded Upland Rice (Oryza sativa L.)”
e1“However, all the weed control treatments i. e. application of pretilachlor 0.75 kg, pendimethalin 0.75 kg and thiobencarb 1.5 kg/ha significantly reduced the total weed population and weed dry matter production resulting in higher weed control efficiency as compared to weedy check.”
Claim · model-written summary
Pendimethalin reduced weed population and dry matter relative to the weedy check.
- Taxon
- riceOryza sativat0
- Treatment
- pendimethalin 0.75 kge0
- Outcome
- total weed population and weed dry matter productione0
- Direction
- reducede0
- Comparator
- weedy checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of pretilachlor 0.75 kg, pendimethalin 0.75 kg and thiobencarb 1.5 kg/ha significantly reduced the total weed population and weed dry matter production resulting in higher weed control efficiency as compared to weedy check.”
t0“Effect of Seed Rate, Spacing and Herbicide Use on Weed Management in Direct Seeded Upland Rice (Oryza sativa L.)”
e1“However, all the weed control treatments i. e. application of pretilachlor 0.75 kg, pendimethalin 0.75 kg and thiobencarb 1.5 kg/ha significantly reduced the total weed population and weed dry matter production resulting in higher weed control efficiency as compared to weedy check.”
Claim · model-written summary
Thiobencarb reduced weed population and dry matter relative to the weedy check.
- Taxon
- riceOryza sativat0
- Treatment
- thiobencarb 1.5 kg/hae0
- Outcome
- total weed population and weed dry matter productione0
- Direction
- reducede0
- Comparator
- weedy checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of pretilachlor 0.75 kg, pendimethalin 0.75 kg and thiobencarb 1.5 kg/ha significantly reduced the total weed population and weed dry matter production resulting in higher weed control efficiency as compared to weedy check.”
t0“Effect of Seed Rate, Spacing and Herbicide Use on Weed Management in Direct Seeded Upland Rice (Oryza sativa L.)”
e1“However, all the weed control treatments i. e. application of pretilachlor 0.75 kg, pendimethalin 0.75 kg and thiobencarb 1.5 kg/ha significantly reduced the total weed population and weed dry matter production resulting in higher weed control efficiency as compared to weedy check.”
Claim · model-written summary
All weed control treatments increased weed control efficiency over the weedy check.
- Taxon
- riceOryza sativat0
- Treatment
- weed control treatmentse1
- Outcome
- weed control efficiencye0
- Direction
- highere0
- Comparator
- weedy checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“resulting in higher weed control efficiency as compared to weedy check”
t0“Effect of Seed Rate, Spacing and Herbicide Use on Weed Management in Direct Seeded Upland Rice (Oryza sativa L.)”
e1“However, all the weed control treatments i. e. application of pretilachlor 0.75 kg, pendimethalin 0.75 kg and thiobencarb 1.5 kg/ha significantly reduced the total weed population and weed dry matter production resulting in higher weed control efficiency as compared to weedy check.”
Claim · model-written summary
All weed control treatments produced significantly higher yield attributes and grain yield than the weedy check.
- Taxon
- riceOryza sativat0
- Treatment
- All weed control treatmentse0
- Outcome
- yield attributese0
- Direction
- highere0
- Comparator
- weedy checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All weed control treatments produced significantly higher yield attributes which ultimately resulted in higher grain yield of paddy as compared to weedy check.”
t0“Effect of Seed Rate, Spacing and Herbicide Use on Weed Management in Direct Seeded Upland Rice (Oryza sativa L.)”
e1“However, all the weed control treatments i. e. application of pretilachlor 0.75 kg, pendimethalin 0.75 kg and thiobencarb 1.5 kg/ha significantly reduced the total weed population and weed dry matter production resulting in higher weed control efficiency as compared to weedy check.”
Claim · model-written summary
Thiobencarb at 1.5 kg/ha produced the highest grain yield, 5.51 t/ha, and was at par with other weed controls.
- Taxon
- riceOryza sativat0
- Treatment
- thiobencarb 1.5 kg/hae0
- Outcome
- grain yielde0
- Direction
- higheste0
- Value
- 5.51 t/hae0
- Comparator
- other weed control treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“thiobencarb 1.5 kg/ha produced highest grain yield of 5.51 t/ha which was at par with other weed control treatments.”
t0“Effect of Seed Rate, Spacing and Herbicide Use on Weed Management in Direct Seeded Upland Rice (Oryza sativa L.)”
e1“However, all the weed control treatments i. e. application of pretilachlor 0.75 kg, pendimethalin 0.75 kg and thiobencarb 1.5 kg/ha significantly reduced the total weed population and weed dry matter production resulting in higher weed control efficiency as compared to weedy check.”
Claim · model-written summary
Weed control treatments reduced nitrogen uptake by weeds.
- Taxon
- riceOryza sativat0
- Treatment
- All weed control treatmentse0
- Outcome
- nitrogen uptake by weedse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All weed control treatments reduced nitrogen uptake by weeds making it available to be used by the crop.”
t0“Effect of Seed Rate, Spacing and Herbicide Use on Weed Management in Direct Seeded Upland Rice (Oryza sativa L.)”
e1“However, all the weed control treatments i. e. application of pretilachlor 0.75 kg, pendimethalin 0.75 kg and thiobencarb 1.5 kg/ha significantly reduced the total weed population and weed dry matter production resulting in higher weed control efficiency as compared to weedy check.”
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See all 802 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.