Abstract
Background: Direct seeded rice is very much prone for weed infestation in eastern Uttar Pradesh. The aim of this trial is to find out appropriate option for improving rice growth and yields besides increasing nutrient uptake. Methods: A field investigation was conducted during the Kharif season of 2014 and 2015 at Varanasi, Uttar Pradesh. Rice variety MTU-7029 was sown with Sesbania and sunhemp cover crop bispyribac Na 25 g ha-1 + azimsulfuron 30 g ha-1 at 15 DAS and 2, 4 -D 0.5 kg ha-1 at 30 DAS were applied to find out best weed control practice for enhancing growth, yields and nutrient uptake in direct seeded rice. Result: Sesbania cover crop fb bispyribac 25 g ha-1 + azimsulfuron 30 g ha-1 at 15 DAS markedly improved plant height, dry matter accumulation, leaf area index, chlorophyll content. Consequently, Sesbania cover crop fb bispyribac 25 g ha-1 + azimsulfuron 30 g ha-1 at 15 DAS influenced statistically grain and straw yields. Sesbania cover crop fb bispyribac 25 g ha-1 + azimsulfuron 30 g ha-1 at 15 DAS recorded significantly lower nutrients (NPK and Zn) depletion by weeds and higher nutrients (NPK and Zn) uptake as compared to hand weeding at 15 and 35 DAS in rice.
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Claims 5
Claim · model-written summary
Sesbania cover crop followed by herbicides improved plant height, dry matter accumulation, and leaf area index.
- Taxon
- rice
Oryza sativat0 - Treatment
- Sesbania cover crop fb bispyribac 25 g ha-1 + azimsulfuron 30 g ha-1 at 15 DASe0
- Outcome
- plant height, dry matter accumulation, leaf area indexe0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sesbania cover crop fb bispyribac 25 g ha-1 + azimsulfuron 30 g ha-1 at 15 DAS markedly improved plant height, dry matter accumulation, leaf area index, chlorophyll content”
t0“rice”
Claim · model-written summary
The same treatment improved chlorophyll content.
- Taxon
- riceOryza sativat0
- Treatment
- Sesbania cover crop fb bispyribac 25 g ha-1 + azimsulfuron 30 g ha-1 at 15 DASe0
- Outcome
- chlorophyll contente0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sesbania cover crop fb bispyribac 25 g ha-1 + azimsulfuron 30 g ha-1 at 15 DAS markedly improved plant height, dry matter accumulation, leaf area index, chlorophyll content”
t0“rice”
Claim · model-written summary
The Sesbania and herbicide treatment influenced grain and straw yields statistically.
- Taxon
- riceOryza sativat0
- Treatment
- Sesbania cover crop fb bispyribac 25 g ha-1 + azimsulfuron 30 g ha-1 at 15 DASe0
- Outcome
- grain and straw yieldse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sesbania cover crop fb bispyribac 25 g ha-1 + azimsulfuron 30 g ha-1 at 15 DAS influenced statistically grain and straw yields”
t0“rice”
Claim · model-written summary
The treatment lowered nutrient depletion by weeds relative to hand weeding.
- Taxon
- riceOryza sativae0
- Treatment
- Sesbania cover crop fb bispyribac 25 g ha-1 + azimsulfuron 30 g ha-1 at 15 DASe0
- Interactor
- weedse0weed
- Outcome
- nutrients (NPK and Zn) depletion by weedse0
- Direction
- lowere0
- Comparator
- hand weeding at 15 and 35 DASe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sesbania cover crop fb bispyribac 25 g ha-1 + azimsulfuron 30 g ha-1 at 15 DAS recorded significantly lower nutrients (NPK and Zn) depletion by weeds and higher nutrients (NPK and Zn) uptake as compared to hand weeding at 15 and 35 DAS in rice”
Claim · model-written summary
The treatment increased NPK and Zn uptake relative to hand weeding.
- Taxon
- riceOryza sativae0
- Treatment
- Sesbania cover crop fb bispyribac 25 g ha-1 + azimsulfuron 30 g ha-1 at 15 DASe0
- Outcome
- nutrients (NPK and Zn) uptakee0
- Direction
- highere0
- Comparator
- hand weeding at 15 and 35 DASe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sesbania cover crop fb bispyribac 25 g ha-1 + azimsulfuron 30 g ha-1 at 15 DAS recorded significantly lower nutrients (NPK and Zn) depletion by weeds and higher nutrients (NPK and Zn) uptake as compared to hand weeding at 15 and 35 DAS in rice”
The same questions in other papers
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- positive
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bispyribac · yield · Oryza sativa (rice)Positive and negative results
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See all 34 papers →azimsulfuron · yield · Oryza sativa (rice)Positive and negative results
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51 papers in the same direction as this paper · 3 reporting no difference from an alternative
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See all 55 papers →azimsulfuron · nutrient: content · Oryza sativa (rice)Results agree
1 paper in the same direction as this paper
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bispyribac · nutrient: content · Oryza sativa (rice)Results agree
3 papers in the same direction as this paper
- positive
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- positive
Sesbania · nutrient: content · Oryza sativa (rice)Results agree
13 papers in the same direction as this paper
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See all 14 papers →Sesbania · weed · Oryza sativa (rice)Results agree
17 papers in the same direction as this paper
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- positive
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See all 18 papers →8 of 14 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.