Abstract
The efficacy of some potent herbicides in conjunction with halod (interculture in standing rice crop with desi plough) for control of weeds in direct seeded puddled rice was studied during1994 and 1995 at Palampur. The major weeds found were : Echinochloa sp., Ammania baccifera, Scirpus sp., Cyperus iria and C. difformis. Pre-emergence application of pretilachlor (0.80 kglha) and butachlor (1.50 kglha before the imposition of halod being statistically at par with post- halod hand weedings as and when required were significantly better than all the post-halod herbicide treatments with regard to weed control, yield attributes and yield. However, all the post-halod herbicides decreased the population and dry matter accumulation by weeds significantly in comparison to only halod. Amongst the post-haiod herbicide treatments, tank mixed combinations of butachlor 0.75 kglha and pretilachlor 0.40 kg/ha with 2, 4-DEE 0.50 kglha being statistically at par with farmers practice of halod followed by hand weeding, produced perceptible increase in grain yield over halod only.
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Claims 6
Claim · model-written summary
The major rice-field weeds included Echinochloa, Ammania, Scirpus and Cyperus species.
- Taxon
- rice
Oryza sativae1 - Interactor
- Echinochloa sp.
Echinochloae0weed - Outcome
- major weedse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The major weeds found were : Echinochloa sp., Ammania baccifera, Scirpus sp., Cyperus iria and C. difformis.”
e1“standing rice crop”
Claim · model-written summary
Pre-emergence pretilachlor with halod performed better than post-halod herbicides for weed control, yield attributes and yield.
- Taxon
- riceOryza sativae1
- Treatment
- pretilachlor (0.80 kglha)e0
- Outcome
- weed control, yield attributes and yielde0
- Direction
- bettere0
- Comparator
- post-halod herbicide treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pre-emergence application of pretilachlor (0.80 kglha) and butachlor (1.50 kglha before the imposition of halod being statistically at par with post- halod hand weedings as and when required were significantly better than all the post-halod herbicide treatments with regard to weed control, yield attributes and yield.”
e1“standing rice crop”
Claim · model-written summary
Pre-emergence butachlor with halod performed better than post-halod herbicides for weed control and rice yield.
- Taxon
- riceOryza sativae1
- Treatment
- butachlor (1.50 kglhae0
- Outcome
- weed control, yield attributes and yielde0
- Direction
- bettere0
- Comparator
- post-halod herbicide treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pre-emergence application of pretilachlor (0.80 kglha) and butachlor (1.50 kglha before the imposition of halod being statistically at par with post- halod hand weedings as and when required were significantly better than all the post-halod herbicide treatments with regard to weed control, yield attributes and yield.”
e1“standing rice crop”
Claim · model-written summary
Post-halod herbicides significantly reduced weed populations and dry matter versus halod alone.
- Taxon
- riceOryza sativae1
- Treatment
- post-halod herbicidese0
- Outcome
- population and dry matter accumulation by weedse0
- Direction
- decreasede0
- Comparator
- only halode0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all the post-halod herbicides decreased the population and dry matter accumulation by weeds significantly in comparison to only halod.”
e1“standing rice crop”
Claim · model-written summary
Butachlor plus 2,4-DEE after halod increased rice grain yield relative to halod alone.
- Taxon
- riceOryza sativae1
- Treatment
- butachlor 0.75 kglhae0
- Outcome
- grain yielde0
- Direction
- increasee0
- Comparator
- halod onlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tank mixed combinations of butachlor 0.75 kglha and pretilachlor 0.40 kg/ha with 2, 4-DEE 0.50 kglha being statistically at par with farmers practice of halod followed by hand weeding, produced perceptible increase in grain yield over halod only.”
e1“standing rice crop”
Claim · model-written summary
Pretilachlor plus 2,4-DEE after halod increased rice grain yield relative to halod alone.
- Taxon
- riceOryza sativae1
- Treatment
- pretilachlor 0.40 kg/hae0
- Outcome
- grain yielde0
- Direction
- increasee0
- Comparator
- halod onlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tank mixed combinations of butachlor 0.75 kglha and pretilachlor 0.40 kg/ha with 2, 4-DEE 0.50 kglha being statistically at par with farmers practice of halod followed by hand weeding, produced perceptible increase in grain yield over halod only.”
e1“standing rice crop”
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