Abstract
A field experiment was conducted at Agricultural Research Farm, Institute of Agricultural Sciences, SHU, Varanasi U.P. situated at 128.9 m above mean sea level, 25 18N latitude and 80 36E longitudes during dry season of 1997–98. The experiment was conducted in split plot design with three replications. Six cultivars viz., Gautarn, Prabhat CN-88 C-1-271, RAU 504-48-4, Pusa 2–21 and Rasi were kept in main plots and three weed management practices i.e. control, two hand weedings (30 and 50 DAT) and butachlor (1.5kg/ha) pre-emergence + 2,4-D (0.5kg/ha) post-emergence were abjusted in sub plots. Seeds were sown in nursery in first week on November and transplanting was done in deepwater field with residual water stagnation in 2nd fortnight of February. Predominant weeds were Marsilea minuta, Sirpus erectus L., Cyperus rotundus L., ipomea aquatica Forsk, Nyrnphea nouchale Burm, Cynodon dactylon (L) Pers, Echinochloa colonum (L) Link, paspalum distichum L., Ecliptaalba (L) Hassk and pistea stratiotes L. Results indicated that application of butachlor 1.5kg/ha + 2,4-D 0.5kg/ha was most effective in minimizing the weed infestation and maximizing the yield of bore rice. This treatment was on par with hand weeding twice 30 & 50 DAT in respect to weed management ane grain yield which had highest production. Among the cultivars, Prabhat proved to be betyter competitor against weeds and had minimum weed growth on accounts of its more vigorous growth and droopy lower leaves. However, the maximum grain yield was recorded under cultivar Gautam and minimum under RAU 504-48-4.
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Claims 6
Claim · model-written summary
Butachlor plus 2,4-D minimized weed infestation.
- Taxon
- boro ricet0
- Treatment
- butachlor 1.5kg/ha + 2,4-D 0.5kg/hae0
- Outcome
- weed infestatione0
- Direction
- minimizinge0
Not reportedComparator
Verbatim
t0“boro rice”
e0“application of butachlor 1.5kg/ha + 2,4-D 0.5kg/ha was most effective in minimizing the weed infestation and maximizing the yield of bore rice.”
Claim · model-written summary
Butachlor plus 2,4-D maximized bore rice yield.
- Taxon
- boro ricet0
- Treatment
- butachlor 1.5kg/ha + 2,4-D 0.5kg/hae0
- Outcome
- yield of bore ricee0
- Direction
- maximizinge0
Not reportedComparator
Verbatim
t0“boro rice”
e0“application of butachlor 1.5kg/ha + 2,4-D 0.5kg/ha was most effective in minimizing the weed infestation and maximizing the yield of bore rice.”
Claim · model-written summary
The chemical treatment matched two hand weedings for weed management and grain yield.
Verbatim
t0“boro rice”
e0“This treatment was on par with hand weeding twice 30 & 50 DAT in respect to weed management ane grain yield which had highest production.”
Claim · model-written summary
Prabhat competed best against weeds and had minimum weed growth.
Verbatim
t0“boro rice”
e0“Among the cultivars, Prabhat proved to be betyter competitor against weeds and had minimum weed growth on accounts of its more vigorous growth and droopy lower leaves.”
Claim · model-written summary
Gautam had the highest grain yield.
Verbatim
t0“boro rice”
e0“the maximum grain yield was recorded under cultivar Gautam and minimum under RAU 504-48-4.”
Claim · model-written summary
RAU 504-48-4 had the lowest grain yield.
Verbatim
t0“boro rice”
e0“the maximum grain yield was recorded under cultivar Gautam and minimum under RAU 504-48-4.”
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