Abstract
The present study was conducted at AC and RI, Killikulam, Tamil Nadu to study the different weed management practices rice. The treatments consisted of application of pre-emergence herbicides viz., butachlor 50% EC @ 1.25 kg a.i. ha−1, oxadiargyl 80% WP @ 70 g a.i. ha−1, bensulfuron methyl 0.6% + pretilachlor 6% GR @ 660 g a.i. ha−1, metsulfuron methyl 10% + chlorimuron ethyl 10% WP @ 4 g a.i. ha−1 on 3 DAT along with postemergence herbicide 2, 4-D Na salt @ 1.25 kg a.i. ha−1 or hand weeding on 35 DAT. In addition, the hand weeding and rotary weeding twice on 15 and 35 DAT were adopted with weed free and weedy check treatments for comparison. Common weed flora observed in the experimental field were< Echinochloa colona, Echinochloa crus-galli, Cynodon dactylon, Cyperus rotundus, Cyperus difformis, Cyperus iria, Eclipta prostrata, Ammania baccifera, Commelina benghalensis and Marsilea quadrifolia. The results revealed that pre-emergence application of bensulfuron methyl + pretilachlor at 660 g a.i. ha−1 on 3 DAT fb one hand weeding on 35 DAT recorded significantly higher grain and straw yield (6710 and 7717 kg ha−1, respectively), lower weed population (31.33 no. m−2) and their dry weight (37.80 kg ha−1). Further the net return and B:C ratio were also high with this treatment.
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Claims 5
Claim · model-written summary
Bensulfuron methyl plus pretilachlor followed by hand weeding produced higher rice grain yield of 6710 kg ha−1.
- Taxon
- Rice
Oryza sativat0 - Treatment
- bensulfuron methyl + pretilachlor at 660 g a.i. ha−1 on 3 DAT fb one hand weeding on 35 DATe0
- Outcome
- graine0
- Direction
- highere0
- Value
- 6710e0
Not reportedComparatorSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pre-emergence application of bensulfuron methyl + pretilachlor at 660 g a.i. ha−1 on 3 DAT fb one hand weeding on 35 DAT recorded significantly higher grain and straw yield (6710 and 7717 kg ha−1, respectively)”
t0“Rice”
t1“Rice”
Claim · model-written summary
The same treatment produced higher straw yield of 7717 kg ha−1.
- Taxon
- RiceOryza sativat0
- Treatment
- bensulfuron methyl + pretilachlor at 660 g a.i. ha−1 on 3 DAT fb one hand weeding on 35 DATe0
- Outcome
- straw yielde0
- Direction
- highere0
- Value
- 7717e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pre-emergence application of bensulfuron methyl + pretilachlor at 660 g a.i. ha−1 on 3 DAT fb one hand weeding on 35 DAT recorded significantly higher grain and straw yield (6710 and 7717 kg ha−1, respectively)”
t0“Rice”
t1“Rice”
Claim · model-written summary
The treatment lowered weed population to 31.33 no. m−2.
- Taxon
- RiceOryza sativat0
- Treatment
- bensulfuron methyl + pretilachlore1
- Outcome
- weed populatione0
- Direction
- lowere0
- Value
- 31.33 no. m−2e0
Not reportedInteractorComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lower weed population (31.33 no. m−2) and their dry weight (37.80 kg ha−1)”
t0“Rice”
t1“Rice”
e1“pre-emergence application of bensulfuron methyl + pretilachlor at 660 g a.i. ha−1 on 3 DAT fb one hand weeding on 35 DAT recorded significantly higher grain and straw yield (6710 and 7717 kg ha−1, respectively)”
Claim · model-written summary
The treatment lowered weed dry weight to 37.80 kg ha−1.
- Taxon
- RiceOryza sativat0
- Treatment
- bensulfuron methyl + pretilachlore1
- Outcome
- their dry weighte0
- Direction
- lowere0
- Value
- 37.80 kg ha−1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lower weed population (31.33 no. m−2) and their dry weight (37.80 kg ha−1)”
t0“Rice”
t1“Rice”
e1“pre-emergence application of bensulfuron methyl + pretilachlor at 660 g a.i. ha−1 on 3 DAT fb one hand weeding on 35 DAT recorded significantly higher grain and straw yield (6710 and 7717 kg ha−1, respectively)”
Claim · model-written summary
The treatment also produced high net return and benefit to cost ratio.
- Taxon
- RiceOryza sativat0
- Outcome
- net return and B:C ratioe0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the net return and B:C ratio were also high with this treatment”
t0“Rice”
t1“Rice”
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