Abstract
A field experiment was carried out during rainy season (kharif) of 2006 and 2007 at Pundibari, West Bengal to work out integrated weed management practices and their economics in dry direct-seeded rice. The weed flora emerged during experimentation were: grasses like Cynodon dactylon and Echinochloa colonum; sedges like Cyperus rotundus, C. iria, and Fimbristylis miliacea; and broad-leaved weeds like Ludwigia parviflora, Ageratum conyzoides, Spilanthes paniculata, Eclipta alba and Enhydra fluctuans. In integrated weed-management practices, butachlor @ 1.5 kg/ha as pre-plant surface application + brown manuring with Sesbania rostrata + 2,4-D @ 0.50 kg/ha recorded the highest grain yield (3.00–3.88 t/ha), which was significantly on a par with that obtained from season-long weed-free situation (3.14–3.98 t/ha). The highest net returns (Rs 11,889 and 19,029/ha) and benefit: cost ratio (0.74 and 1.19) were also recorded in this treatment. Therefore, this integrated weed management practice could become effective in dry-direct seeded kharif rice under foothill (terai) agro-climatic region of West Bengal.
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Claims 5
Claim · model-written summary
Butachlor with brown manuring and 2,4-D gave the highest grain yield, 3.00–3.88 t/ha, on a par with season-long weed-free plots
- Taxon
- rice
Oryza sativat0 - Treatment
- butachlor @ 1.5 kg/ha as pre-plant surface application + brown manuring with Sesbania rostrata + 2,4-D @ 0.50 kg/hae1
- Outcome
- grain yielde1
- Direction
- higheste1
- Value
- 3.00–3.88 t/hae1
- Qualifier
- significantly on a par with that obtained from season-long weed-free situatione2
- Comparator
- season-long weed-free situatione2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Integrated weed management in dry direct-seeded rainy season rice (Oryza sativa)”
e1“butachlor @ 1.5 kg/ha as pre-plant surface application + brown manuring with Sesbania rostrata + 2,4-D @ 0.50 kg/ha recorded the highest grain yield (3.00–3.88 t/ha)”
e2“which was significantly on a par with that obtained from season-long weed-free situation”
Claim · model-written summary
The same integrated treatment gave the highest net returns, Rs 11,889 and 19,029/ha
- Taxon
- riceOryza sativat0
- Treatment
- butachlor @ 1.5 kg/ha as pre-plant surface application + brown manuring with Sesbania rostrata + 2,4-D @ 0.50 kg/hae1
- Outcome
- net returnse3
- Direction
- higheste3
- Value
- Rs 11,889 and 19,029/hae3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Integrated weed management in dry direct-seeded rainy season rice (Oryza sativa)”
e1“butachlor @ 1.5 kg/ha as pre-plant surface application + brown manuring with Sesbania rostrata + 2,4-D @ 0.50 kg/ha recorded the highest grain yield (3.00–3.88 t/ha)”
e3“The highest net returns (Rs 11,889 and 19,029/ha) and benefit: cost ratio (0.74 and 1.19) were also recorded in this treatment”
Claim · model-written summary
The same integrated treatment gave the highest benefit:cost ratio, 0.74 and 1.19
- Taxon
- riceOryza sativat0
- Treatment
- butachlor @ 1.5 kg/ha as pre-plant surface application + brown manuring with Sesbania rostrata + 2,4-D @ 0.50 kg/hae1
- Outcome
- benefit: cost ratioe3
- Direction
- higheste3
- Value
- 0.74 and 1.19e3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Integrated weed management in dry direct-seeded rainy season rice (Oryza sativa)”
e1“butachlor @ 1.5 kg/ha as pre-plant surface application + brown manuring with Sesbania rostrata + 2,4-D @ 0.50 kg/ha recorded the highest grain yield (3.00–3.88 t/ha)”
e3“The highest net returns (Rs 11,889 and 19,029/ha) and benefit: cost ratio (0.74 and 1.19) were also recorded in this treatment”
Claim · model-written summary
The integrated weed management practice could become effective in dry-direct seeded kharif rice in the foothill (terai) region of West Bengal
Verbatim
e4“this integrated weed management practice could become effective in dry-direct seeded kharif rice under foothill (terai) agro-climatic region of West Bengal”
Claim · model-written summary
The weed flora in the experiment included Echinochloa colonum and Cynodon dactylon
- Taxon
- riceOryza sativat0
- Interactor
- Echinochloa colonum
Echinochloa colonae5weed - Second interactor
- Cynodon dactylon
Cynodon dactylone5weed - Outcome
- weed florae5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Integrated weed management in dry direct-seeded rainy season rice (Oryza sativa)”
e5“The weed flora emerged during experimentation were: grasses like Cynodon dactylon and Echinochloa colonum”
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