Abstract
An investigation was conducted at College of Agriculture, Nagpur to study the effect of Weed management in drilled paddy (Oryza sativa L.) during kharif season of 2014-2015. The experiment was laid down in Randomized block design having treatments viz., Control (T1), 2 hand weeding at 20 and 40 DAS (T2), Butachlor @ 1500 g a.i. ha-1 at 7 DAS (T3), Pretilachlor @ 750g a.i. ha-1 at 7 DAS(T4), 2, 4 D @ 1000 g a.i. ha-1 at 20 - 25 DAS(T5), Pyrazosulfuron ethyl @ 25 g a.i. ha-1 at 20 - 25 DAS(T6), Butachlor @ 1500 g a.i. ha-1 at 7 DAS + 2, 4 D @ 1000 g a.i.ha-1 at 20 - 25 DAS(T7), Butachlor @ 1500 g a.i. ha-1 at 7 DAS + Pyrazosulfuron ethyl @ 25 g a.i.ha-1 at 20 - 25 DAS(T8), Pretilachlor @ 750 g a.i. ha-1 at 7 DAS + 2, 4 D @ 1000 g a.i. ha-1 at 20 - 25 DAS(T9), Pretilachlor @ 750 g a.i. ha-1 at 7 DAS + Pyrazosulfuron ethyl @ 25 g a.i.ha-1 at 20 - 25 DAS(T10) thereby making Ten treatment combinations replicated three times. Rice variety PKV- Khamang was used as a test crop. Results revealed that two hand weeding at 20 and 40 DAS (T2) caused significant reduction in population of monocot and dicot weeds as compared to control and it was at par with butachlor @ 1500 g a.i. ha-1 at 7 DAS + 2,4-D @ 1000 g a.i. g ha-1 at 20 - 25 DAS (T7), butachlor @ 1500 g a.i. ha-1 at 7 DAS + pyrazosulfuron ethyl @ 25 g a.i. ha-1 at 20 - 25 DAS (T8), pretilachlor @ 750 g a.i. ha-1 at 7 DAS + 2,4-D @ 1000 g a.i. ha-1 at 20 - 25 DAS (T9) and pretilachlor @ 750 g a.i. ha-1 + pyrazosulfuron ethyl @ 25 g a.i. ha-1 at 20 - 25 DAS (T10). Lowest dry matter of weeds and higher weed control efficiency was recorded by treatment two hand weeding at 20 and 40 DAS (T2) and it was at par with T7, T8, T9 and T10. Maximum net return and B:C ratio were obtained by treatments two hand weeding at 20 and 40 DAS and was at par with butachlor @ 1500 g a.i. ha-1 at 7 DAS + 2,4-D @ 1000 g a.i. g ha-1 at 20 - 25 DAS(T7), butachlor @ 1500 g a.i. ha-1 at 7 DAS + pyrazosulfuron ethyl @ 25 g a.i. ha-1 at 20 - 25 DAS (T8), pretilachlor @ 750 g a.i. ha-1 at 7 DAS + 2,4-D @ 1000 g a.i. ha-1 at 20 - 25 DAS (T9) and pretilachlor @ 750 g a.i. ha-1 + pyrazosulfuron ethyl @ 25 g a.i. ha-1 at 20 - 25 DAS (T10).
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
Two hand weedings at 20 and 40 DAS significantly reduced monocot and dicot weed population compared with control
- Taxon
- Oryza sativa L.
Oryza sativat0 - Treatment
- two hand weeding at 20 and 40 DASe1
- Interactor
- monocot and dicot weedse1weed
- Outcome
- population of monocot and dicot weedse1
- Direction
- reductione1
- Comparator
- controle1
- Setting
- College of Agriculture, Nagpure0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“drilled paddy (Oryza sativa L.)”
e0“An investigation was conducted at College of Agriculture, Nagpur”
e1“Results revealed that two hand weeding at 20 and 40 DAS (T2) caused significant reduction in population of monocot and dicot weeds as compared to control”
Claim · model-written summary
Two hand weedings at 20 and 40 DAS gave the lowest weed dry matter
- Taxon
- Oryza sativa L.Oryza sativat0
- Treatment
- two hand weeding at 20 and 40 DAS (T2)e2
- Interactor
- weedse2weed
- Outcome
- dry matter of weedse2
- Direction
- Loweste2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“drilled paddy (Oryza sativa L.)”
e2“Lowest dry matter of weeds and higher weed control efficiency was recorded by treatment two hand weeding at 20 and 40 DAS (T2) and it was at par with T7, T8, T9 and T10”
Claim · model-written summary
Two hand weedings at 20 and 40 DAS gave higher weed control efficiency
- Taxon
- Oryza sativa L.Oryza sativat0
- Treatment
- two hand weeding at 20 and 40 DAS (T2)e2
- Interactor
- weede2weed
- Outcome
- weed control efficiencye2
- Direction
- highere2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“drilled paddy (Oryza sativa L.)”
e2“Lowest dry matter of weeds and higher weed control efficiency was recorded by treatment two hand weeding at 20 and 40 DAS (T2) and it was at par with T7, T8, T9 and T10”
Claim · model-written summary
Two hand weedings at 20 and 40 DAS gave the maximum net return and B:C ratio
- Taxon
- Oryza sativa L.Oryza sativat0
- Treatment
- two hand weeding at 20 and 40 DASe3
- Outcome
- net return and B:C ratioe3
- Direction
- Maximume3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“drilled paddy (Oryza sativa L.)”
e3“Maximum net return and B:C ratio were obtained by treatments two hand weeding at 20 and 40 DAS”
Claim · model-written summary
Herbicide combinations T7 to T10 were at par with two hand weeding for weed dry matter
- Taxon
- Oryza sativa L.Oryza sativat0
- Treatment
- T7, T8, T9 and T10e2
- Outcome
- dry matter of weedse2
- Direction
- at pare2
- Comparator
- two hand weeding at 20 and 40 DAS (T2)e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“drilled paddy (Oryza sativa L.)”
e2“Lowest dry matter of weeds and higher weed control efficiency was recorded by treatment two hand weeding at 20 and 40 DAS (T2) and it was at par with T7, T8, T9 and T10”
The same questions in other papers
herbicide · weed · Oryza sativa (rice)Positive and negative results
578 papers in the same direction as this paper · 17 in the opposite direction · 7 reporting no difference from an alternative
- positive
- positive
- negative
599 papers more in this group
See all 603 papers →herbicide · yield · Oryza sativa (rice)Positive and negative results
724 papers in the same direction as this paper · 57 in the opposite direction · 20 reporting no difference from an alternative
- positive
- positive
- positive
798 papers more in this group
See all 802 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.