Abstract
A field experiment was conducted during the spring season of 2020 to evaluate the different weed management practices in dry directed seeded spring rice under Prime Minister Agriculture Modernization Project (PMAMP) super zone at Baniyani, Jhapa. The experiment was laid out in randomized complete block design (RCBD) with seven weed management related treatments and three replications. The treatments consisted of pre-emergence application of Pretilachlor, pre-emergence application of Pendimethalin, pre-emergence application of Pretilachlor fb post-emergence butachlor pre-emergence application of Pendimethalin fb post-emergence Bispyribac Na, Sesbania co-culture along with pre-emergence application of Pendimethalin along with two control treatments (weedy free and weedy check). The rice variety Hardinath-1 was used in the experiment. Data regarding the weed flora, weed density, weed dry weight, growth, yield attributes and yield were recorded and analyzed. The highest number of effective tillers per m2 (371.51) and number of grains per panicle (145.43) were obtained in Pendimethalin treated plot and were statistically as par with Sesbania co-culture + Pendimethalin (363.44 m-2 and 140.54 respectively). Higher and statistically similar grain yield was observed in Sesbania co- culture + Pendimethalin (4870kg ha-1) and Pendimethalin treated plots (4780 kg ha-1). The experiment concluded that there was reduction in yield by 66.78 percent due to presence of weed as compared to weed free. Pre-emergence application of Pendimethalin was most beneficial in terms of gross returns, net returns and B:C ratio compared to other weed management practices and hence was most economical.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. 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
Pendimethalin treatment gave the highest number of effective tillers per m2 in spring rice.
- Taxon
- spring rice
Oryza sativat0 - Treatment
- Pendimethaline1
- Outcome
- effective tillers per m2e1
- Direction
- higheste1
- Value
- 371.51e1
- Comparator
- Sesbania co-culture + Pendimethaline1
- Setting
- Baniyani, Jhapa, Nepalt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“dry direct seeded spring rice at Baniyani, Jhapa, Nepal”
e1“The highest number of effective tillers per m2 (371.51) and number of grains per panicle (145.43) were obtained in Pendimethalin treated plot and were statistically as par with Sesbania co-culture + Pendimethalin (363.44 m-2 and 140.54 respectively)”
Claim · model-written summary
Pendimethalin treatment gave the highest number of grains per panicle in spring rice.
- Taxon
- spring riceOryza sativat0
- Treatment
- Pendimethaline1
- Outcome
- number of grains per paniclee1
- Direction
- higheste1
- Value
- 145.43e1
- Comparator
- Sesbania co-culture + Pendimethaline1
- Setting
- Baniyani, Jhapa, Nepalt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“dry direct seeded spring rice at Baniyani, Jhapa, Nepal”
e1“The highest number of effective tillers per m2 (371.51) and number of grains per panicle (145.43) were obtained in Pendimethalin treated plot and were statistically as par with Sesbania co-culture + Pendimethalin (363.44 m-2 and 140.54 respectively)”
Claim · model-written summary
Sesbania co-culture with pre-emergence Pendimethalin gave statistically similar grain yield of 4870 kg ha-1 to Pendimethalin alone.
- Taxon
- spring riceOryza sativat0
- Treatment
- Sesbania co- culture + Pendimethaline2
- Outcome
- grain yielde2
- Direction
- Highere2
- Value
- 4870kg ha-1e2
- Comparator
- Pendimethalin treated plotse2
- Setting
- Baniyani, Jhapa, Nepalt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“dry direct seeded spring rice at Baniyani, Jhapa, Nepal”
e2“Higher and statistically similar grain yield was observed in Sesbania co- culture + Pendimethalin (4870kg ha-1) and Pendimethalin treated plots (4780 kg ha-1)”
Claim · model-written summary
Pendimethalin alone gave statistically similar grain yield of 4780 kg ha-1 to Sesbania co-culture with Pendimethalin.
- Taxon
- spring riceOryza sativat0
- Treatment
- Pendimethalin treated plotse2
- Outcome
- grain yielde2
- Direction
- Highere2
- Value
- 4780 kg ha-1e2
- Comparator
- Sesbania co- culture + Pendimethaline2
- Setting
- Baniyani, Jhapa, Nepalt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“dry direct seeded spring rice at Baniyani, Jhapa, Nepal”
e2“Higher and statistically similar grain yield was observed in Sesbania co- culture + Pendimethalin (4870kg ha-1) and Pendimethalin treated plots (4780 kg ha-1)”
Claim · model-written summary
Presence of weeds reduced spring rice yield by 66.78 percent compared with weed-free plots.
- Taxon
- spring riceOryza sativat0
- Treatment
- presence of weede3
- Interactor
- weede3weed
- Outcome
- yielde3
- Direction
- reductione3
- Value
- 66.78 percente3
- Comparator
- weed freee3
- Setting
- Baniyani, Jhapa, Nepalt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“dry direct seeded spring rice at Baniyani, Jhapa, Nepal”
e3“there was reduction in yield by 66.78 percent due to presence of weed as compared to weed free”
Claim · model-written summary
Pre-emergence Pendimethalin was most beneficial for gross returns, net returns and B:C ratio and most economical among weed management practices.
- Taxon
- spring riceOryza sativat0
- Treatment
- Pre-emergence application of Pendimethaline4
- Outcome
- gross returns, net returns and B:C ratioe4
- Direction
- most beneficiale4
- Comparator
- other weed management practicese4
- Setting
- Baniyani, Jhapa, Nepalt0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“dry direct seeded spring rice at Baniyani, Jhapa, Nepal”
e4“Pre-emergence application of Pendimethalin was most beneficial in terms of gross returns, net returns and B:C ratio compared to other weed management practices and hence was most economical”
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
- positive
- no effect
- no effect
51 papers more in this group
See all 55 papers →pendimethalin · yield · Oryza sativa (rice)Positive and negative results
125 papers in the same direction as this paper · 5 in the opposite direction · 4 reporting no difference from an alternative
- positive
- no effect
- negative
131 papers more in this group
See all 135 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
- no effect
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.