Abstract
A field experiment was conducted at Wetland Farm of Tamil Nadu Agricultural University, Coimbatore during rabi 2009-2010 to study the effect of crop establishment methods and weed management practices on productivity and economics of drum seeding and direct planting system of rice. The direct planting system method of establishment proved better in terms of reducing weed density, dry weight of weeds and increased plant characters, viz., leaf area index, dry matter production, productive tillers and higher grain yield (11%) more compared to drum seeding method of establishment. Whereas, the drum seeding recorded less cost of cultivation (Rs 16,268) and comparable B: C ratio (2.9). Among weed management practices the pre-emergence application of pretilachlor + safener (sofit) @ 0.45 kg a.i. ha-1 on 3 DAS + cono weeding on 45 DAS was very effective to realize higher weed control efficiency (86%), increased productivity and economics (BC ratio 3.4) and it was comparable with pretilachlor + safener (sofit) @ 0.45 kg a.i. ha-1 on 3 DAS + motorized weeding on 45 DAS which recorded BC ratio (3.3).
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Claims 9
Claim · model-written summary
Direct planting reduced weed density and dry weight of weeds compared with drum seeding.
- Taxon
- rice
Oryza sativae4 - Treatment
- direct planting systeme1
- Interactor
- weedse1weed
- Outcome
- weed density, dry weight of weedse1
- Direction
- reducinge1
- Comparator
- drum seeding method of establishmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The direct planting system method of establishment proved better in terms of reducing weed density, dry weight of weeds and increased plant characters, viz., leaf area index, dry matter production, productive tillers and higher grain yield (11%) more compared to drum seeding method of establishment”
e4“drum seeding and direct planting system of rice”
Claim · model-written summary
Direct planting increased leaf area index, dry matter production and productive tillers compared with drum seeding.
- Taxon
- riceOryza sativae4
- Treatment
- direct planting systeme1
- Outcome
- leaf area index, dry matter production, productive tillerse1
- Direction
- increasede1
- Comparator
- drum seeding method of establishmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The direct planting system method of establishment proved better in terms of reducing weed density, dry weight of weeds and increased plant characters, viz., leaf area index, dry matter production, productive tillers and higher grain yield (11%) more compared to drum seeding method of establishment”
e4“drum seeding and direct planting system of rice”
Claim · model-written summary
Direct planting gave 11% higher grain yield than drum seeding.
- Taxon
- riceOryza sativae4
- Treatment
- direct planting systeme1
- Outcome
- grain yielde1
- Direction
- highere1
- Value
- 11%e1
- Comparator
- drum seeding method of establishmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The direct planting system method of establishment proved better in terms of reducing weed density, dry weight of weeds and increased plant characters, viz., leaf area index, dry matter production, productive tillers and higher grain yield (11%) more compared to drum seeding method of establishment”
e4“drum seeding and direct planting system of rice”
Claim · model-written summary
Drum seeding recorded less cost of cultivation, Rs 16,268.
- Taxon
- riceOryza sativae4
- Treatment
- drum seedinge0
- Outcome
- cost of cultivatione0
- Direction
- lesse0
- Value
- Rs 16,268e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Whereas, the drum seeding recorded less cost of cultivation (Rs 16,268) and comparable B: C ratio (2.9)”
e4“drum seeding and direct planting system of rice”
Claim · model-written summary
Drum seeding gave a B:C ratio comparable to direct planting, 2.9.
- Taxon
- riceOryza sativae4
- Treatment
- drum seedinge0
- Outcome
- B: C ratioe0
- Direction
- no_changeinferrede0
- Value
- 2.9e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Whereas, the drum seeding recorded less cost of cultivation (Rs 16,268) and comparable B: C ratio (2.9)”
e4“drum seeding and direct planting system of rice”
Claim · model-written summary
Pre-emergence pretilachlor + safener followed by cono weeding gave 86% weed control efficiency.
- Taxon
- riceOryza sativae4
- Treatment
- pre-emergence application of pretilachlor + safener (sofit) @ 0.45 kg a.i. ha-1 on 3 DAS + cono weeding on 45 DASe2
- Outcome
- weed control efficiencye2
- Direction
- highere2
- Value
- 86%e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“the pre-emergence application of pretilachlor + safener (sofit) @ 0.45 kg a.i. ha-1 on 3 DAS + cono weeding on 45 DAS was very effective to realize higher weed control efficiency (86%), increased productivity and economics (BC ratio 3.4)”
e4“drum seeding and direct planting system of rice”
Claim · model-written summary
Pre-emergence pretilachlor + safener followed by cono weeding increased rice productivity and economics.
- Taxon
- riceOryza sativae4
- Treatment
- pre-emergence application of pretilachlor + safener (sofit) @ 0.45 kg a.i. ha-1 on 3 DAS + cono weeding on 45 DASe2
- Outcome
- productivity and economicse2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“the pre-emergence application of pretilachlor + safener (sofit) @ 0.45 kg a.i. ha-1 on 3 DAS + cono weeding on 45 DAS was very effective to realize higher weed control efficiency (86%), increased productivity and economics (BC ratio 3.4)”
e4“drum seeding and direct planting system of rice”
Claim · model-written summary
Pre-emergence pretilachlor + safener followed by cono weeding gave a B:C ratio of 3.4.
- Taxon
- riceOryza sativae4
- Treatment
- pre-emergence application of pretilachlor + safener (sofit) @ 0.45 kg a.i. ha-1 on 3 DAS + cono weeding on 45 DASe2
- Outcome
- BC ratioe2
- Direction
- increasede2
- Value
- 3.4e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“the pre-emergence application of pretilachlor + safener (sofit) @ 0.45 kg a.i. ha-1 on 3 DAS + cono weeding on 45 DAS was very effective to realize higher weed control efficiency (86%), increased productivity and economics (BC ratio 3.4)”
e4“drum seeding and direct planting system of rice”
Claim · model-written summary
Pre-emergence pretilachlor + safener followed by motorized weeding gave a B:C ratio comparable to cono weeding, 3.3.
- Taxon
- riceOryza sativae4
- Treatment
- pretilachlor + safener (sofit) @ 0.45 kg a.i. ha-1 on 3 DAS + motorized weeding on 45 DASe3
- Outcome
- BC ratioe3
- Direction
- no_changeinferrede3
- Value
- 3.3e3
- Comparator
- pretilachlor + safener (sofit) @ 0.45 kg a.i. ha-1 on 3 DAS + cono weeding on 45 DASe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“the pre-emergence application of pretilachlor + safener (sofit) @ 0.45 kg a.i. ha-1 on 3 DAS + cono weeding on 45 DAS was very effective to realize higher weed control efficiency (86%), increased productivity and economics (BC ratio 3.4)”
e3“it was comparable with pretilachlor + safener (sofit) @ 0.45 kg a.i. ha-1 on 3 DAS + motorized weeding on 45 DAS which recorded BC ratio (3.3)”
e4“drum seeding and direct planting system of rice”
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