Abstract
Two experimentswere carried out at the Agronomy Field laboratory, Bangladesh Agricultural University, Mymensingh during July to December 2014 to study the effectiveness of pretilachlor and oxadiazon on weed control and yield performance oftransplant aman rice. In experiment I BRRI dhan31and in experiment II BRRI dhan46 was transplanted with eight weeding practices viz., weedy check; one hand weeding; two hand weeding; weed free;Pretilachlor only;Oxadiazon only;Pretilachlor + one hand weeding; and Oxadiazon+ one hand weeding. The design was split-plot with three replications. Eleven weed species were found to be infested in the experimental plots. Although weeds were completely controlled in weed free treatment, it is not practicable.Pretilachlor oroxadiazon with one hand weeding performed the best in terms of weed density and weed biomass over single application of each and even manual weeding. Weeds were completely resistant to weedy check, poorly susceptible to one hand weeding, moderately susceptible to two hand weeding and single application of both herbicide and highly susceptible to both herbicides with one hand weeding while weeds were completely susceptible to weed free treatment. Herbicides produced slight phyto-toxicity which was recovered by two weeks of application. The highest grain yield was recorded from weed free treatment and was statistically identical to pretilachlor oroxadiazon with one hand weeding. Single application of pretilachlor oroxadiazon ranked the third in terms of yield and statistically similar to two hand weeding followed by one hand weeding. Weedy check performed the worst.Progressive Agriculture 27 (2): 119-127, 2016
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 9
Claim · model-written summary
Eleven weed species infested the rice experimental plots.
Verbatim
e0“Eleven weed species were found to be infested in the experimental plots”
t0“transplant Aman rice”
Claim · model-written summary
Weeds were completely controlled by the weed-free treatment.
- Taxon
- rice
Oryza sativat0 - Treatment
- weed free treatmente0
- Outcome
- weedse0
- Direction
- completely controllede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“weeds were completely controlled in weed free treatment”
t0“rice”
Claim · model-written summary
Pretilachlor with one hand weeding performed best for weed density and biomass relative to single herbicide application and manual weeding.
- Taxon
- riceOryza sativat0
- Treatment
- Pretilachlor oroxadiazon with one hand weedinge0
- Outcome
- weed density and weed biomasse0
- Direction
- beste0
- Comparator
- single application of each and even manual weedinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pretilachlor oroxadiazon with one hand weeding performed the best in terms of weed density and weed biomass over single application of each and even manual weeding”
t0“rice”
Claim · model-written summary
Herbicide application caused slight phytotoxicity that recovered within two weeks.
- Taxon
- riceOryza sativat0
- Treatment
- Herbicidese0
- Outcome
- phyto-toxicitye0
- Direction
- producede0
- Qualifier
- recovered by two weeks of applicatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Herbicides produced slight phyto-toxicity which was recovered by two weeks of application”
t0“rice”
Claim · model-written summary
The weed-free treatment gave the highest rice grain yield.
- Taxon
- riceOryza sativat0
- Treatment
- weed free treatmente0
- Outcome
- grain yielde0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest grain yield was recorded from weed free treatment”
t0“rice”
Claim · model-written summary
Grain yield under weed-free treatment was statistically identical to herbicide plus one hand weeding.
- Outcome
- grain yielde1
- Direction
- statistically identicale0
- Comparator
- pretilachlor oroxadiazon with one hand weedinge0
Not reportedTaxon
Verbatim
e0“was statistically identical to pretilachlor oroxadiazon with one hand weeding”
e1“The highest grain yield was recorded from weed free treatment”
Claim · model-written summary
Single herbicide application ranked third for yield and was statistically similar to two hand weedings.
- Taxon
- riceOryza sativat0
- Treatment
- Single application of pretilachlor oroxadiazone0
- Outcome
- yielde0
- Direction
- statistically similare0
- Comparator
- two hand weedinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Single application of pretilachlor oroxadiazon ranked the third in terms of yield and statistically similar to two hand weeding”
t0“rice”
Claim · model-written summary
The weedy check had the worst yield performance.
Verbatim
e0“Weedy check performed the worst”
t0“yield performance of transplant Aman rice”
Claim · model-written summary
The authors considered a fully weed-free treatment impracticable.
- Taxon
- riceOryza sativat0
- Outcome
- weed free treatmente0
- Qualifier
- not practicablee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Although weeds were completely controlled in weed free treatment, it is not practicable”
t0“rice”
The same questions in other papers
Pretilachlor · weed · Oryza sativa (rice)Results differ
146 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- no effect
146 papers more in this group
See all 150 papers →herbicide · crop injury · Oryza sativa (rice)Positive and negative results
42 papers in the same direction as this paper · 10 in the opposite direction
- positive
- positive
- positive
49 papers more in this group
See all 53 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
- negative
- no effect
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
- no effect
- negative
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.