Abstract
The research was conducted to study the effect of different herbicides on weed infestation, growth and yield of kharif rice. Field trail was conducted during the kharif season of 2020 at the Instructional Farm, Jaguli, Bidhan Chandra Krishi Viswavidyalaya, West Bengal, under a randomized block design with nine treatment combinations. The variety Satabdi (IET-4786) was selected for the experiment and transplanted with the spacing of 20 cm × 10 cm. Treatments included various doses of UPH-814, a combination of bensulfuron methyl and pretilachlor, pyrazosulfuron ethyle, pretilachlor and hand weeding. The predominant weed species included Cynodon dactylon, Echinochloa spp., Cyperus spp., and various broadleaved weeds. Results showed that hand weeding achieved the lower weed population at all growth stages, among herbicidal treatments, particularly the combination of bensulfuron methyl and pretilachlor (T6) which result highest weed control efficiency at 60 DAT (80.77%) and UPH-814 (T3), were highly effective in controlling weed flora.Among all the herbicidal treatments minimum weed population at 30 DAS, 45 DAS, 60 DAS obtained in T3, pre-emergence application of UPH 814 (S) @ 2500 g ha-1. These treatments also resulted in the highest dry matter accumulation (810.90 g/m-2) at the time of harvest, grain and straw yields, with T6, Bensulfuron methyl 0.6%+ Pretilachlor 6% GR @10000 g/ha achieving a grain yield of 3.67 t/ha and a straw yield of 4.31 t/ha. Thus, UPH-814 and the combination of bensulfuron methyl and pretilachlor are promising options for effective weed management in kharif rice.
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Claims 8
Claim · model-written summary
Hand weeding gave the lowest weed population at all growth stages.
- Taxon
- rice
Oryza sativat0 - Treatment
- hand weedinge0
- Outcome
- weed populatione0
- Direction
- lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hand weeding achieved the lower weed population at all growth stages”
t0“rice”
Claim · model-written summary
Bensulfuron methyl plus pretilachlor T6 achieved 80.77% weed control efficiency at 60 DAT.
- Taxon
- riceOryza sativat0
- Treatment
- combination of bensulfuron methyl and pretilachlore0
- Outcome
- weed control efficiencye0
- Direction
- higheste0
- Value
- 80.77%e0
- Qualifier
- 60 DATe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“combination of bensulfuron methyl and pretilachlor (T6) which result highest weed control efficiency at 60 DAT (80.77%)”
t0“rice”
Claim · model-written summary
UPH-814 T3 was highly effective in controlling weed flora.
- Taxon
- riceOryza sativat0
- Treatment
- UPH-814 (T3)e0
- Outcome
- controlling weed florae0
- Direction
- highly effectivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UPH-814 (T3), were highly effective in controlling weed flora”
t0“rice”
Claim · model-written summary
Pre-emergence UPH 814 at 2500 g ha-1 produced the minimum weed population at 30, 45 and 60 DAS among herbicides.
- Taxon
- riceOryza sativat0
- Treatment
- pre-emergence application of UPH 814 (S) @ 2500 g ha-1e0
- Outcome
- weed populatione0
- Direction
- minimume0
- Qualifier
- 30 DAS, 45 DAS, 60 DASe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“minimum weed population at 30 DAS, 45 DAS, 60 DAS obtained in T3, pre-emergence application of UPH 814 (S) @ 2500 g ha-1”
t0“rice”
Claim · model-written summary
These herbicide treatments produced highest dry matter accumulation of 810.90 g/m-2 at harvest.
- Taxon
- riceOryza sativat0
- Treatment
- These treatmentse0
- Outcome
- dry matter accumulatione0
- Direction
- higheste0
- Value
- 810.90 g/m-2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These treatments also resulted in the highest dry matter accumulation (810.90 g/m-2) at the time of harvest”
t0“rice”
Claim · model-written summary
T6 gave grain yield of 3.67 t/ha.
- Taxon
- riceOryza sativat0
- Treatment
- Bensulfuron methyl 0.6%+ Pretilachlor 6% GR @10000 g/hae0
- Outcome
- grain yielde0
- Value
- 3.67 t/hae0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T6, Bensulfuron methyl 0.6%+ Pretilachlor 6% GR @10000 g/ha achieving a grain yield of 3.67 t/ha and a straw yield of 4.31 t/ha”
t0“rice”
Claim · model-written summary
T6 gave straw yield of 4.31 t/ha.
- Taxon
- riceOryza sativat0
- Treatment
- Bensulfuron methyl 0.6%+ Pretilachlor 6% GR @10000 g/hae0
- Outcome
- straw yielde0
- Value
- 4.31 t/hae0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“T6, Bensulfuron methyl 0.6%+ Pretilachlor 6% GR @10000 g/ha achieving a grain yield of 3.67 t/ha and a straw yield of 4.31 t/ha”
t0“rice”
Claim · model-written summary
UPH-814 and bensulfuron methyl plus pretilachlor are promising for kharif rice weed management.
- Taxon
- riceOryza sativae0
- Outcome
- effective weed management in kharif ricee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UPH-814 and the combination of bensulfuron methyl and pretilachlor are promising options for effective weed management in kharif rice”
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See all 603 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.