Abstract
A field investigation was carried out at the Instructional farm, College of Agriculture, Vellayani during 2000-2001 to assess the effect of spacing and weed management practices on the performance of basmati rice. The treatments comprised of three spacings (15x15, 20x10 and 15x10 cm) and five weed control treatments (weed free check, unweeded control, hand weeding twice at 20 and 40 DAT, anilofos+2,4-DEE (readymix) 0.40+0.53 kg ha at 6 DAT supplemented with hand weeding at 20 DAT and anilofos+2,4-DEE (readymix) 0.40+0.53 kg ha' at 6 DAT supplemented with 2,4-D sodium salt 1 kg ha at 20 DAT). Grasses were the predominant weed species observed in the experimental field. Unchecked weed competition reduced grain yield to the tune of 46%. Herbicides were most effective in controlling the weeds. The results revealed that with 20x1 Ocm spacing (50 hills m2), pre-emergence application of anilofos+2,4-DEE (readymix) 0.40+0.53 kg ha supplemented with 2,4-D sodium salt 1 kg ha¹ could result in maximum grain yield and minimum weed competition.
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Claims 5
Claim · model-written summary
Unchecked weed competition reduced grain yield by 46%.
- Taxon
- basmati ricee0
- Treatment
- Unchecked weed competitione1
- Interactor
- weede1weed
- Outcome
- grain yielde1
- Direction
- reducede1
- Value
- 46%e1
- Setting
- Instructional farm, College of Agriculture, Vellayanie0
Not reportedComparator
Verbatim
e0“A field investigation was carried out at the Instructional farm, College of Agriculture, Vellayani during 2000-2001 to assess the effect of spacing and weed management practices on the performance of basmati rice”
e1“Unchecked weed competition reduced grain yield to the tune of 46%”
Claim · model-written summary
Grasses were the predominant weed species in the experimental field.
Verbatim
e0“A field investigation was carried out at the Instructional farm, College of Agriculture, Vellayani during 2000-2001 to assess the effect of spacing and weed management practices on the performance of basmati rice”
e2“Grasses were the predominant weed species observed in the experimental field”
Claim · model-written summary
Herbicides were most effective in controlling weeds.
- Taxon
- basmati ricee0
- Treatment
- Herbicidese3
- Interactor
- weedse3weed
- Outcome
- controlling the weedse3
- Direction
- most effectivee3
Not reportedComparator
Verbatim
e0“A field investigation was carried out at the Instructional farm, College of Agriculture, Vellayani during 2000-2001 to assess the effect of spacing and weed management practices on the performance of basmati rice”
e3“Herbicides were most effective in controlling the weeds”
Claim · model-written summary
The pre-emergence herbicide combination with 2,4-D gave maximum grain yield.
- Taxon
- basmati ricee0
- Treatment
- pre-emergence application of anilofos+2,4-DEE (readymix) 0.40+0.53 kg ha supplemented with 2,4-D sodium salt 1 kg ha¹e4
- Outcome
- grain yielde4
- Direction
- maximume4
Not reportedComparator
Verbatim
e0“A field investigation was carried out at the Instructional farm, College of Agriculture, Vellayani during 2000-2001 to assess the effect of spacing and weed management practices on the performance of basmati rice”
e4“pre-emergence application of anilofos+2,4-DEE (readymix) 0.40+0.53 kg ha supplemented with 2,4-D sodium salt 1 kg ha¹ could result in maximum grain yield and minimum weed competition”
Claim · model-written summary
The pre-emergence herbicide combination with 2,4-D gave minimum weed competition.
- Taxon
- basmati ricee0
- Treatment
- pre-emergence application of anilofos+2,4-DEE (readymix) 0.40+0.53 kg ha supplemented with 2,4-D sodium salt 1 kg ha¹e4
- Interactor
- weede4weed
- Outcome
- minimum weed competitione4
- Direction
- minimume4
Not reportedComparator
Verbatim
e0“A field investigation was carried out at the Instructional farm, College of Agriculture, Vellayani during 2000-2001 to assess the effect of spacing and weed management practices on the performance of basmati rice”
e4“pre-emergence application of anilofos+2,4-DEE (readymix) 0.40+0.53 kg ha supplemented with 2,4-D sodium salt 1 kg ha¹ could result in maximum grain yield and minimum weed competition”
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