Abstract
Field experiments were conducted during rabi 2002–03 and 2004–05 at the Regional Agricultural Research Station, Lam, Guntur, Andhra Pradesh to study the optimum time and dose of post-emergence herbicides for Echinochloa spp. control in blackgram grown as relay crop. Results indicated that all the post-emergence herbicides like fenoxaprop-P-ethyl, clodinafop-propargyl and cyhalofop-butyl significantly reduced Echinochloa colona growth and increased blackgram yield by 27 to 42% over weedy check without any crop injury. Among different herbicides and their doses, fenoxaprop 68 g/ha recorded the highest seed yield (1332 kg/ha) and net monetary returns (Rs. 21,993/ha) and B: C ratio of 1.95 and was on par with its lower dose (56 g/ha). Herbicide application at 21 and 28 days after sowing (DAS) resulted in significantly higher reduction in Echinochloa colona density at 20 and 40 days after treatment (DAT) and total weed dry weight compared to its application at 14 DAS. However, blackgram seed yield did not differ significantly due to the time of herbicide application.
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Claims 9
Claim · model-written summary
Post-emergence herbicides significantly reduced Echinochloa colona growth in blackgram compared with the weedy check, without crop injury.
- Taxon
- blackgram
Vigna mungoe1 - Treatment
- post-emergence herbicides like fenoxaprop-P-ethyl, clodinafop-propargyl and cyhalofop-butyle1
- Interactor
- Echinochloa colona
Echinochloa colonae1weed - Outcome
- Echinochloa colona growthe1
- Direction
- reducede1
- Qualifier
- without any crop injurye1
- Comparator
- weedy checke1
- Setting
- Lam, Guntur, Andhra Pradeshe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at the Regional Agricultural Research Station, Lam, Guntur, Andhra Pradesh”
e1“all the post-emergence herbicides like fenoxaprop-P-ethyl, clodinafop-propargyl and cyhalofop-butyl significantly reduced Echinochloa colona growth and increased blackgram yield by 27 to 42% over weedy check without any crop injury”
Claim · model-written summary
Post-emergence herbicides increased blackgram yield by 27 to 42% over the weedy check.
- Taxon
- blackgramVigna mungoe1
- Treatment
- post-emergence herbicides like fenoxaprop-P-ethyl, clodinafop-propargyl and cyhalofop-butyle1
- Interactor
- Echinochloa colonaEchinochloa colonae1weed
- Outcome
- blackgram yielde1
- Direction
- increasede1
- Value
- 27 to 42%e1
- Comparator
- weedy checke1
- Setting
- Lam, Guntur, Andhra Pradeshe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at the Regional Agricultural Research Station, Lam, Guntur, Andhra Pradesh”
e1“all the post-emergence herbicides like fenoxaprop-P-ethyl, clodinafop-propargyl and cyhalofop-butyl significantly reduced Echinochloa colona growth and increased blackgram yield by 27 to 42% over weedy check without any crop injury”
Claim · model-written summary
Fenoxaprop 68 g/ha gave the highest seed yield (1332 kg/ha) among the herbicides and doses tested in blackgram.
- Taxon
- BlackgramVigna mungot0
- Treatment
- fenoxaprop 68 g/hae2
- Outcome
- seed yielde2
- Direction
- higheste2
- Value
- 1332 kg/hae2
- Comparator
- different herbicides and their dosese2
- Setting
- Lam, Guntur, Andhra Pradeshe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Blackgram Grown as Relay Crop”
e0“at the Regional Agricultural Research Station, Lam, Guntur, Andhra Pradesh”
e2“Among different herbicides and their doses, fenoxaprop 68 g/ha recorded the highest seed yield (1332 kg/ha) and net monetary returns (Rs. 21,993/ha) and B: C ratio of 1.95 and was on par with its lower dose (56 g/ha)”
Claim · model-written summary
Fenoxaprop 68 g/ha gave the highest net monetary returns (Rs. 21,993/ha) among the herbicides and doses tested in blackgram.
- Taxon
- BlackgramVigna mungot0
- Treatment
- fenoxaprop 68 g/hae2
- Outcome
- net monetary returnse2
- Direction
- higheste2
- Value
- Rs. 21,993/hae2
- Comparator
- different herbicides and their dosese2
- Setting
- Lam, Guntur, Andhra Pradeshe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Blackgram Grown as Relay Crop”
e0“at the Regional Agricultural Research Station, Lam, Guntur, Andhra Pradesh”
e2“Among different herbicides and their doses, fenoxaprop 68 g/ha recorded the highest seed yield (1332 kg/ha) and net monetary returns (Rs. 21,993/ha) and B: C ratio of 1.95 and was on par with its lower dose (56 g/ha)”
Claim · model-written summary
Fenoxaprop 68 g/ha had a B:C ratio of 1.95, higher than the other herbicides and doses tested in blackgram.
- Taxon
- BlackgramVigna mungot0
- Treatment
- fenoxaprop 68 g/hae2
- Outcome
- B: C ratioe2
- Direction
- higherinferrede2
- Value
- 1.95e2
- Comparator
- different herbicides and their dosese2
- Setting
- Lam, Guntur, Andhra Pradeshe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Blackgram Grown as Relay Crop”
e0“at the Regional Agricultural Research Station, Lam, Guntur, Andhra Pradesh”
e2“Among different herbicides and their doses, fenoxaprop 68 g/ha recorded the highest seed yield (1332 kg/ha) and net monetary returns (Rs. 21,993/ha) and B: C ratio of 1.95 and was on par with its lower dose (56 g/ha)”
Claim · model-written summary
Fenoxaprop 68 g/ha was on par with its lower dose (56 g/ha) for seed yield in blackgram.
- Taxon
- BlackgramVigna mungot0
- Treatment
- fenoxaprop 68 g/hae2
- Outcome
- seed yielde2
- Direction
- no_changeinferrede2
- Comparator
- its lower dose (56 g/ha)e2
- Setting
- Lam, Guntur, Andhra Pradeshe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Blackgram Grown as Relay Crop”
e0“at the Regional Agricultural Research Station, Lam, Guntur, Andhra Pradesh”
e2“Among different herbicides and their doses, fenoxaprop 68 g/ha recorded the highest seed yield (1332 kg/ha) and net monetary returns (Rs. 21,993/ha) and B: C ratio of 1.95 and was on par with its lower dose (56 g/ha)”
Claim · model-written summary
Herbicide application at 21 and 28 DAS gave a higher reduction in Echinochloa colona density at 20 and 40 DAT than application at 14 DAS in blackgram.
- Taxon
- BlackgramVigna mungot0
- Treatment
- Herbicide application at 21 and 28 days after sowing (DAS)e3
- Interactor
- Echinochloa colonaEchinochloa colonae3weed
- Outcome
- Echinochloa colona densitye3
- Direction
- higher reductione3
- Qualifier
- at 20 and 40 days after treatment (DAT)e3
- Comparator
- its application at 14 DASe3
- Setting
- Lam, Guntur, Andhra Pradeshe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Blackgram Grown as Relay Crop”
e0“at the Regional Agricultural Research Station, Lam, Guntur, Andhra Pradesh”
e3“Herbicide application at 21 and 28 days after sowing (DAS) resulted in significantly higher reduction in Echinochloa colona density at 20 and 40 days after treatment (DAT) and total weed dry weight compared to its application at 14 DAS”
Claim · model-written summary
Herbicide application at 21 and 28 DAS gave a higher reduction in total weed dry weight than application at 14 DAS in blackgram.
- Taxon
- BlackgramVigna mungot0
- Treatment
- Herbicide application at 21 and 28 days after sowing (DAS)e3
- Interactor
- Echinochloa colonaEchinochloa colonae3weed
- Outcome
- total weed dry weighte3
- Direction
- higher reductione3
- Comparator
- its application at 14 DASe3
- Setting
- Lam, Guntur, Andhra Pradeshe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“in Blackgram Grown as Relay Crop”
e0“at the Regional Agricultural Research Station, Lam, Guntur, Andhra Pradesh”
e3“Herbicide application at 21 and 28 days after sowing (DAS) resulted in significantly higher reduction in Echinochloa colona density at 20 and 40 days after treatment (DAT) and total weed dry weight compared to its application at 14 DAS”
Claim · model-written summary
Blackgram seed yield did not differ significantly between herbicide application times.
- Taxon
- blackgramVigna mungoe4
- Treatment
- the time of herbicide applicatione4
- Outcome
- blackgram seed yielde4
- Direction
- did not differe4
- Setting
- Lam, Guntur, Andhra Pradeshe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“at the Regional Agricultural Research Station, Lam, Guntur, Andhra Pradesh”
e4“However, blackgram seed yield did not differ significantly due to the time of herbicide application”
The same questions in other papers
herbicide · yield · Vigna mungo (black gram)Positive and negative results
5 papers in the same direction as this paper · 89 in the opposite direction
- positive
- positive
- positive
91 papers more in this group
See all 95 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.