Abstract
A field experiment was conducted during Summer, 2023 at Anbil Dharmalingam Agricultural College and Research Institute, Tamil Nadu Agricultural University, Tiruchirappalli to study the effect of herbigation on weed control and yield of drip irrigated cotton. The experiment was laid out in randomized block design with nine treatments and replicated thrice. The treatments consisted of herbigation of pre emergence (PE) herbicides (Pendimethalin 1.0 kg ha-1 and Oxyfluorfen 0.2 kg ha-1) combined with hand weeding at 45 DAS or manual spray or herbigation of post emergence (PoE) herbicide (Pyrithiobac Sodium + Quizalofop Ethyl 75 g ha-1 on 25 DAS) compared with recommended practice of manual spray of PE pendimethalin 1.0 kg ha-1 + HW at 45 DAS, HW twice on 20 and 40 DAS and unweeded control. The results revealed that among the different weed management practices manual spray of PE pendimethalin 1.0 kg ha-1 + HW at 45 DAS registered significantly lower total weed density (12.63 m-2), total weed dry weight (8.23 g m-2) and higher weed control efficiency (77%) at 20 DAS. This was followed by herbigation of PE pendimethalin 1.0 kg ha-1 + manual spray of PoE pyrithiobac sodium + quizalofop ethyl 75 g ha-1 on 25 DAS. Among the herbigation treatments, herbigation of PE pendimethalin 1.0 kg ha-1 + manual spray of PoE pyrithiobac sodium + quizalofop ethyl 75 g ha-1 on 25 DAS obtained lower total weed density (12.13 m-2), total weed dry weight (9.19 g m-2) and higher WCE (86%) at 40 DAS. This was followed by herbigation of PE oxyfluorfen 0.2 kg ha-1 + manual spray of PoE pyrithiobac sodium + quizalofop ethyl 75 g ha-1 on 25 DAS. At 60 DAS, application of manual spray of PE pendimethalin 1.0 kg ha-1 + HW at 45 DAS recorded lower total weed density (18.07 m-2), total weed dry weight (16.03 g m-2) and higher weed control efficiency (85%). However, this was comparable with herbigation of PE pendimethalin 1.0 kg ha-1 + manual spray of PoE pyrithiobac sodium + quizalofop ethyl 75 g ha-1 on 25 DAS and HW on 20 and 40 DAS. The highest seed cotton yield (2109 kg ha-1) was obtained with manual spray of PE pendimethalin 1.0 kg ha-1 + HW at 45 DAS and it was on par with herbigation of PE pendimethalin 1.0 kg ha-1 + manual spray of PoE pyrithiobac sodium + quizalofop ethyl 75 g ha-1 on 25 DAS and HW on 20 and 40 DAS. Hence, considering the labour scarcity, herbigation of PE pendimethalin1.0 kg ha-1 on 3 DAS followed by manual spray of PoE pyrithiobac sodium + quizalofop ethyl 75 g ha-1 on 25 DAS could be recommended for better weed control in drip irrigated cotton.
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Claims 11
Claim · model-written summary
At 20 DAS manual spray of pre-emergence pendimethalin with hand weeding gave lower total weed density, 12.63 m-2.
- Taxon
- Cotton
Gossypium hirsutumt0 - Treatment
- manual spray of PE pendimethalin 1.0 kg ha-1 + HW at 45 DASe1
- Interactor
- weede1weed
- Outcome
- total weed densitye1
- Direction
- lowere1
- Value
- 12.63 m-2e1
- Qualifier
- at 20 DASe1
- Comparator
- different weed management practicese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Drip Irrigated Cotton”
e1“The results revealed that among the different weed management practices manual spray of PE pendimethalin 1.0 kg ha-1 + HW at 45 DAS registered significantly lower total weed density (12.63 m-2), total weed dry weight (8.23 g m-2) and higher weed control efficiency (77%) at 20 DAS”
Claim · model-written summary
At 20 DAS manual spray of pre-emergence pendimethalin with hand weeding gave lower total weed dry weight, 8.23 g m-2.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- manual spray of PE pendimethalin 1.0 kg ha-1 + HW at 45 DASe1
- Interactor
- weede1weed
- Outcome
- total weed dry weighte1
- Direction
- lowere1
- Value
- 8.23 g m-2e1
- Qualifier
- at 20 DASe1
- Comparator
- different weed management practicese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Drip Irrigated Cotton”
e1“The results revealed that among the different weed management practices manual spray of PE pendimethalin 1.0 kg ha-1 + HW at 45 DAS registered significantly lower total weed density (12.63 m-2), total weed dry weight (8.23 g m-2) and higher weed control efficiency (77%) at 20 DAS”
Claim · model-written summary
At 20 DAS manual spray of pre-emergence pendimethalin with hand weeding gave higher weed control efficiency, 77%.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- manual spray of PE pendimethalin 1.0 kg ha-1 + HW at 45 DASe1
- Interactor
- weede1weed
- Outcome
- weed control efficiencye1
- Direction
- highere1
- Value
- 77%e1
- Qualifier
- at 20 DASe1
- Comparator
- different weed management practicese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Drip Irrigated Cotton”
e1“The results revealed that among the different weed management practices manual spray of PE pendimethalin 1.0 kg ha-1 + HW at 45 DAS registered significantly lower total weed density (12.63 m-2), total weed dry weight (8.23 g m-2) and higher weed control efficiency (77%) at 20 DAS”
Claim · model-written summary
At 40 DAS herbigation of pre-emergence pendimethalin with post-emergence spray gave lower total weed density, 12.13 m-2.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- herbigation of PE pendimethalin 1.0 kg ha-1e2
- Interactor
- weede2weed
- Outcome
- total weed densitye2
- Direction
- lowere2
- Value
- 12.13 m-2e2
- Qualifier
- at 40 DASe2
- Comparator
- herbigation treatmentse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Drip Irrigated Cotton”
e2“Among the herbigation treatments, herbigation of PE pendimethalin 1.0 kg ha-1 + manual spray of PoE pyrithiobac sodium + quizalofop ethyl 75 g ha-1 on 25 DAS obtained lower total weed density (12.13 m-2), total weed dry weight (9.19 g m-2) and higher WCE (86%) at 40 DAS”
Claim · model-written summary
At 40 DAS herbigation of pre-emergence pendimethalin with post-emergence spray gave lower total weed dry weight, 9.19 g m-2.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- herbigation of PE pendimethalin 1.0 kg ha-1e2
- Interactor
- weede2weed
- Outcome
- total weed dry weighte2
- Direction
- lowere2
- Value
- 9.19 g m-2e2
- Qualifier
- at 40 DASe2
- Comparator
- herbigation treatmentse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Drip Irrigated Cotton”
e2“Among the herbigation treatments, herbigation of PE pendimethalin 1.0 kg ha-1 + manual spray of PoE pyrithiobac sodium + quizalofop ethyl 75 g ha-1 on 25 DAS obtained lower total weed density (12.13 m-2), total weed dry weight (9.19 g m-2) and higher WCE (86%) at 40 DAS”
Claim · model-written summary
At 40 DAS herbigation of pre-emergence pendimethalin with post-emergence spray gave higher weed control efficiency, 86%.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- herbigation of PE pendimethalin 1.0 kg ha-1e2
- Interactor
- weede2weed
- Outcome
- WCEe2
- Direction
- highere2
- Value
- 86%e2
- Qualifier
- at 40 DASe2
- Comparator
- herbigation treatmentse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Drip Irrigated Cotton”
e2“Among the herbigation treatments, herbigation of PE pendimethalin 1.0 kg ha-1 + manual spray of PoE pyrithiobac sodium + quizalofop ethyl 75 g ha-1 on 25 DAS obtained lower total weed density (12.13 m-2), total weed dry weight (9.19 g m-2) and higher WCE (86%) at 40 DAS”
Claim · model-written summary
At 60 DAS manual spray of pre-emergence pendimethalin with hand weeding gave lower total weed density, 18.07 m-2.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- manual spray of PE pendimethalin 1.0 kg ha-1 + HW at 45 DASe3
- Interactor
- weede3weed
- Outcome
- total weed densitye3
- Direction
- lowere3
- Value
- 18.07 m-2e3
- Qualifier
- At 60 DASe3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Drip Irrigated Cotton”
e3“At 60 DAS, application of manual spray of PE pendimethalin 1.0 kg ha-1 + HW at 45 DAS recorded lower total weed density (18.07 m-2), total weed dry weight (16.03 g m-2) and higher weed control efficiency (85%)”
Claim · model-written summary
At 60 DAS manual spray of pre-emergence pendimethalin with hand weeding gave lower total weed dry weight, 16.03 g m-2.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- manual spray of PE pendimethalin 1.0 kg ha-1 + HW at 45 DASe3
- Interactor
- weede3weed
- Outcome
- total weed dry weighte3
- Direction
- lowere3
- Value
- 16.03 g m-2e3
- Qualifier
- At 60 DASe3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Drip Irrigated Cotton”
e3“At 60 DAS, application of manual spray of PE pendimethalin 1.0 kg ha-1 + HW at 45 DAS recorded lower total weed density (18.07 m-2), total weed dry weight (16.03 g m-2) and higher weed control efficiency (85%)”
Claim · model-written summary
At 60 DAS manual spray of pre-emergence pendimethalin with hand weeding gave higher weed control efficiency, 85%.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- manual spray of PE pendimethalin 1.0 kg ha-1 + HW at 45 DASe3
- Interactor
- weede3weed
- Outcome
- weed control efficiencye3
- Direction
- highere3
- Value
- 85%e3
- Qualifier
- At 60 DASe3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Drip Irrigated Cotton”
e3“At 60 DAS, application of manual spray of PE pendimethalin 1.0 kg ha-1 + HW at 45 DAS recorded lower total weed density (18.07 m-2), total weed dry weight (16.03 g m-2) and higher weed control efficiency (85%)”
Claim · model-written summary
Manual spray of pre-emergence pendimethalin with hand weeding gave the highest seed cotton yield, 2109 kg ha-1.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- manual spray of PE pendimethalin 1.0 kg ha-1 + HW at 45 DASe4
- Outcome
- seed cotton yielde4
- Direction
- higheste4
- Value
- 2109 kg ha-1e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Drip Irrigated Cotton”
e4“The highest seed cotton yield (2109 kg ha-1) was obtained with manual spray of PE pendimethalin 1.0 kg ha-1 + HW at 45 DAS”
Claim · model-written summary
Herbigation of pre-emergence pendimethalin on 3 DAS followed by manual post-emergence spray is recommended for better weed control in drip-irrigated cotton.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- manual spray of PoE pyrithiobac sodium + quizalofop ethyl 75 g ha-1 on 25 DASe5
- Outcome
- better weed controle5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Drip Irrigated Cotton”
e5“followed by manual spray of PoE pyrithiobac sodium + quizalofop ethyl 75 g ha-1 on 25 DAS could be recommended for better weed control in drip irrigated cotton”
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- positive
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See all 283 papers →application · weed · Gossypium hirsutum (cotton)Results agree
11 papers in the same direction as this paper
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See all 12 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.