Abstract
Rice cultivation faces a major biotic challenge from weeds, which compete aggressively with the crop, hampering its growth and yield potential. Puddling operations in transplanted rice helps to supress weeds. However, the physico-chemical properties of soil are deteriorated with this practice. A field study was conducted for two years in Punjab, India during the kharif seasons of 2023 and 2024 to evaluate the weed dynamics, growth and yield of unpuddled transplanted rice under varying planting patterns and weed control treatments. The research was carried out in split plot design comprising of four planting patterns viz. two rows/ridge, two rows/ridge and one in furrow, flat (unpuddled), flat (puddled) in main plots and four weed control treatments, viz. pendimethalin 0.75 kg ha-1 as pre-em. fb bispyribac sodium 10 SC at 25 g/ha as post-em., pendimethalin 0.75 kg ha-1 as pre-em. fb penoxsulam 240 SC at 24 g ha-1 as post-em., pendimethalin 0.75 kg ha-1 as pre-em. fb fenoxaprop 6.7 EC at 67 g ha-1 as post-em. and unweeded (control) in sub-plots, with four replicates. The findings revealed that transplanting two rows per ridge and one in furrow significantly increased the paddy yield, with significant reduction in weed density and biomass in comparison to other planting patterns. Meanwhile, yields from flat unpuddled and flat puddled transplanting were found to be statistically similar. Among weed control treatments, the application of pendimethalin 0.75 kg ha-1 as pre-em. fb bispyribac 10 SC at 25 g ha-1 as post-em. effectively suppressed the population and biomass of weeds including grasses, sedges and broad-leaved weeds, as compared to all other weed control treatments.
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Claims 4
Claim · model-written summary
Two rows per ridge plus one in furrow significantly increased paddy yield versus other patterns.
- Taxon
- rice
Oryza sativat0 - Treatment
- two rows per ridge and one in furrowe0
- Outcome
- paddy yielde0
- Direction
- increasede0
- Comparator
- other planting patternse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“transplanting two rows per ridge and one in furrow significantly increased the paddy yield, with significant reduction in weed density and biomass in comparison to other planting patterns.”
t0“transplanted rice”
Claim · model-written summary
The same pattern significantly reduced weed density and biomass versus other patterns.
- Taxon
- riceOryza sativat0
- Treatment
- two rows per ridge and one in furrowe0
- Interactor
- weede0weed
- Outcome
- weed density and biomasse0
- Direction
- reductione0
- Comparator
- other planting patternse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“transplanting two rows per ridge and one in furrow significantly increased the paddy yield, with significant reduction in weed density and biomass in comparison to other planting patterns.”
t0“transplanted rice”
Claim · model-written summary
Flat unpuddled and flat puddled transplanting produced statistically similar yields.
- Taxon
- riceOryza sativat0
- Treatment
- flat unpuddlede0
- Outcome
- yieldse0
- Direction
- similare0
- Comparator
- flat puddled transplantinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“yields from flat unpuddled and flat puddled transplanting were found to be statistically similar.”
t0“transplanted rice”
Claim · model-written summary
Pendimethalin followed by bispyribac suppressed weed population and biomass more than other weed controls.
- Taxon
- riceOryza sativat0
- Treatment
- pendimethalin 0.75 kg ha-1 as pre-em. fb bispyribac 10 SC at 25 g ha-1 as post-em.e0
- Interactor
- weedse0weed
- Outcome
- population and biomass of weedse0
- Direction
- suppressede0
- Comparator
- all other weed control treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of pendimethalin 0.75 kg ha-1 as pre-em. fb bispyribac 10 SC at 25 g ha-1 as post-em. effectively suppressed the population and biomass of weeds including grasses, sedges and broad-leaved weeds, as compared to all other weed control treatments.”
t0“transplanted rice”
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