Abstract
A field experiment was conducted during rainy (Sali) season of 2019 in organic block of Instructional-cum-Research farm of the Assam Agricultural University, Jorhat to study the effect of organic weed management practices on weeds, rice growth, yield attributes and yield of aromatic rice (Oryza sativa L. cv Kola Joha) established by wet-seeding and transplanting. The experiment was laid out in split-plot design with main plots of two rice establishment methods, i.e., direct wet-seeding (WSR), puddled transplanting (PTR) and sub plots of five organic weed management practices, viz. weedy check, hand weeding at 20 and 40 days after transplanting (DAT)/seeding (DAS), weeding with rotary weeder at 20 and 40 DAT/DAS, weeding with cono-weeder at 20 and 40 DAT/DAS and intercropping of Sesbania (Sesbania aculeata L.) and its incorporation at 40 DAT/DAS. The puddled transplanting method of rice establishment resulted significantly higher rice grain yield (1.82 t/ha), decreased weed density and biomass compared to the direct wet-seeding method. The hand weeding twice at 20 and 40 DAT/DAS produced the highest grain yield (2.19 t/ha), maximum weed control efficiency and weed control index. The next best was the intercropping of Sesbania and its incorporation at 40 DAT/DAS (1.69 t/ha), which recorded the highest B:C ratio (2.61) under the puddled transplanting system of rice establishment.
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 6
Claim · model-written summary
Puddled transplanting yielded 1.82 t/ha, significantly higher than direct wet seeding.
- Taxon
- rice
Oryza sativae0 - Treatment
- puddled transplanting methode0
- Outcome
- rice grain yielde0
- Direction
- highere0
- Value
- 1.82 t/hae0
- Comparator
- direct wet-seeding methode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The puddled transplanting method of rice establishment resulted significantly higher rice grain yield (1.82 t/ha), decreased weed density and biomass compared to the direct wet-seeding method”
Claim · model-written summary
Puddled transplanting decreased weed density and biomass.
- Taxon
- riceOryza sativae0
- Treatment
- puddled transplanting methode0
- Interactor
- weede0weed
- Outcome
- weed density and biomasse0
- Direction
- decreasede0
- Comparator
- direct wet-seeding methode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The puddled transplanting method of rice establishment resulted significantly higher rice grain yield (1.82 t/ha), decreased weed density and biomass compared to the direct wet-seeding method”
Claim · model-written summary
Twice hand weeding produced the highest grain yield, 2.19 t/ha.
- Taxon
- riceOryza sativat0
- Treatment
- hand weeding twice at 20 and 40 DAT/DASe0
- Outcome
- grain yielde0
- Direction
- higheste0
- Value
- 2.19 t/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The hand weeding twice at 20 and 40 DAT/DAS produced the highest grain yield (2.19 t/ha), maximum weed control efficiency and weed control index”
t0“aromatic rice”
Claim · model-written summary
Twice hand weeding maximized weed control efficiency and weed control index.
- Taxon
- riceOryza sativat0
- Treatment
- hand weeding twice at 20 and 40 DAT/DASe0
- Interactor
- weede0weed
- Outcome
- weed control efficiency and weed control indexe0
- Direction
- maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The hand weeding twice at 20 and 40 DAT/DAS produced the highest grain yield (2.19 t/ha), maximum weed control efficiency and weed control index”
t0“aromatic rice”
Claim · model-written summary
Sesbania intercropping and incorporation yielded 1.69 t/ha.
- Taxon
- riceOryza sativat0
- Treatment
- intercropping of Sesbania and its incorporation at 40 DAT/DASe0
- Outcome
- next beste0
- Direction
- next beste0
- Value
- 1.69 t/hae0
SesbaniaNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The next best was the intercropping of Sesbania and its incorporation at 40 DAT/DAS (1.69 t/ha)”
t0“aromatic rice”
Claim · model-written summary
Sesbania intercropping under puddled transplanting had the highest benefit cost ratio, 2.61.
- Taxon
- riceOryza sativat0
- Treatment
- intercropping of Sesbania and its incorporation at 40 DAT/DASe1
- Outcome
- B:C ratioe0
- Direction
- higheste0
- Value
- 2.61e0
- Qualifier
- under the puddled transplanting system of rice establishmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“which recorded the highest B:C ratio (2.61) under the puddled transplanting system of rice establishment”
t0“aromatic rice”
e1“intercropping of Sesbania and its incorporation at 40 DAT/DAS”
The same questions in other papers
Sesbania · yield · Oryza sativa (rice)Positive and negative results
51 papers in the same direction as this paper · 3 reporting no difference from an alternative
- no effect
- no effect
- no effect
51 papers more in this group
See all 55 papers →tillage · weed · Oryza sativa (rice)Results differ
70 papers in the same direction as this paper · 13 in the opposite direction · 2 reporting no difference from an alternative
- negative
- no effect
- no effect
82 papers more in this group
See all 86 papers →intercropping · yield · Oryza sativa (rice)Results differ
76 papers in the same direction as this paper · 15 in the opposite direction · 3 reporting no difference from an alternative
- negative
- negative
- no effect
91 papers more in this group
See all 95 papers →transplanting · weed · Oryza sativa (rice)Positive and negative results
128 papers in the same direction as this paper · 16 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
142 papers more in this group
See all 146 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
- negative
- no effect
- negative
599 papers more in this group
See all 603 papers →tillage · yield · Oryza sativa (rice)Positive and negative results
586 papers in the same direction as this paper · 115 in the opposite direction · 27 reporting no difference from an alternative
- negative
- negative
- negative
725 papers more in this group
See all 729 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
- no effect
- negative
- negative
798 papers more in this group
See all 802 papers →transplanting · yield · Oryza sativa (rice)Positive and negative results
921 papers in the same direction as this paper · 132 in the opposite direction · 24 reporting no difference from an alternative
- no effect
- no effect
- no effect
1,074 papers more in this group
See all 1,078 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.