Abstract
Abstract: Uncontrolled weeds cause considerable losses in the grain yield of pigeonpea. Field experiments were conducted for seven years from 1998 to 2004 on a loamy sand soil to study the effect of weed management on weeds, growth and grain yield of pigeonpea. In some years, weed dry matter was higher than in others, due to variation in rainfall received. Two hand weedings, pendimethalin in integration with hand weeding or ridging or both and paraquat in integration with hand weeding resulted in high weed control efficiency. Uncontrolled weeds caused 31.0 to 52.8 % reduction in pigeonpea grain yield in different years. The sole application of 1 pendimethalin as pre-emergence at 45 or 75 kg ha was less effective in controlling weeds and improving grain yield than the above mentioned treatments as pigeonpea is a long duration (about 140 days) crop and weeds 1 emerge in different flushes due to rainy season. Integration of pendimethalin 0.45 kg ha + hand weeding 30 DAS + ridging 50 DAS provided the high weed control efficiency and produced the highest grain yields of pigeonpea in all the years of study. Key words: Weeds Weed control efficiency Hand weeding Pendimethalin Paraquat
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 7
Claim · model-written summary
Weed dry matter varied among years with rainfall.
- Taxon
- Pigeonpea
Cajanus cajant0 - Interactor
- weede0weed
- Outcome
- weed dry mattere0
- Direction
- highere0
- Setting
- yearse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In some years, weed dry matter was higher than in others, due to variation in rainfall received.”
t0“Pigeonpea”
Claim · model-written summary
Two hand weedings gave high weed control efficiency.
- Taxon
- PigeonpeaCajanus cajant0
- Treatment
- Two hand weedingse0
- Interactor
- weede0weed
- Outcome
- weed control efficiencye0
- Direction
- highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Two hand weedings, pendimethalin in integration with hand weeding or ridging or both and paraquat in integration with hand weeding resulted in high weed control efficiency.”
t0“Pigeonpea”
Claim · model-written summary
Pendimethalin integrated with hand weeding or ridging gave high weed control efficiency.
- Taxon
- PigeonpeaCajanus cajant0
- Treatment
- pendimethalin in integration with hand weeding or ridging or bothe0
- Interactor
- weede0weed
- Outcome
- weed control efficiencye0
- Direction
- highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pendimethalin in integration with hand weeding or ridging or both and paraquat in integration with hand weeding resulted in high weed control efficiency.”
t0“Pigeonpea”
Claim · model-written summary
Paraquat integrated with hand weeding gave high weed control efficiency.
- Taxon
- PigeonpeaCajanus cajant0
- Treatment
- paraquat in integration with hand weedinge0
- Interactor
- weede0weed
- Outcome
- weed control efficiencye0
- Direction
- highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“paraquat in integration with hand weeding resulted in high weed control efficiency.”
t0“Pigeonpea”
Claim · model-written summary
Uncontrolled weeds reduced pigeonpea grain yield by 31.0 to 52.8 % across years.
- Taxon
- pigeonpeaCajanus cajane0
- Treatment
- Uncontrolled weedse0
- Interactor
- weedse0weed
- Outcome
- pigeonpea grain yielde0
- Direction
- reductione0
- Value
- 31.0 to 52.8 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Uncontrolled weeds caused 31.0 to 52.8 % reduction in pigeonpea grain yield in different years.”
Claim · model-written summary
Sole pendimethalin was less effective in weed control and yield than integrated treatments.
- Taxon
- pigeonpeaCajanus cajane0
- Treatment
- pendimethalin as pre-emergence at 45 or 75 kg hae0
- Interactor
- weedse0weed
- Outcome
- controlling weeds and improving grain yielde0
- Direction
- less effectivee0
- Comparator
- above mentioned treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The sole application of 1 pendimethalin as pre-emergence at 45 or 75 kg ha was less effective in controlling weeds and improving grain yield than the above mentioned treatments as pigeonpea is a long duration (about 140 days) crop and weeds 1 emerge in different flushes due to rainy season.”
Claim · model-written summary
Pendimethalin with hand weeding and ridging gave high weed control efficiency and the highest grain yields throughout the study.
- Taxon
- pigeonpeaCajanus cajane0
- Treatment
- pendimethalin 0.45 kg ha + hand weeding 30 DAS + ridging 50 DASe0
- Outcome
- weed control efficiency and produced the highest grain yieldse0
- Direction
- higheste0
- Qualifier
- all the years of studye0
Not reportedInteractorComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Integration of pendimethalin 0.45 kg ha + hand weeding 30 DAS + ridging 50 DAS provided the high weed control efficiency and produced the highest grain yields of pigeonpea in all the years of study.”
The same questions in other papers
paraquat · weed · Cajanus cajan (pigeon pea)Results agree
2 papers in the same direction as this paper
- positive
- positive
pendimethalin · weed · Cajanus cajan (pigeon pea)Results agree
20 papers in the same direction as this paper
- positive
- positive
- positive
17 papers more in this group
See all 21 papers →herbicide · weed · Cajanus cajan (pigeon pea)Results agree
27 papers in the same direction as this paper
- positive
- positive
- positive
24 papers more in this group
See all 28 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.