Paper · 2023 · ORYZA- An International Journal on Rice

Evaluation of weed management approaches on weed dynamics, yield and economics of puddled rice under different plant techniques

Vikram Sai M; Murugan G; Sai Kumar

6
claims
12
verbatim quotes
0
citations
2
research areas
✓
Open access · cc-by

Abstract

A field experiment was conducted in January to May, 2022 (Navarai) to find out the effective weed management practices in puddled rice. The experiment was carried out in a split-plot design, which included two planting techniques viz., drum seeded rice and system of rice intensification (SRI) in main plot, as well as eight weed management practices viz., hand weeding, cono weeding, pretilachlor, bispyribac sodium and fenoxaprop - p - ethyl as pre and post emergence application in sub plot. The results of the experiment demonstrated that among the planting techniques and weed management practices tested, the system of rice intensification and sequential application of pretilachlor @ 0.5 kg a.i ha-1 fb bispyribac sodium @ 20 g a.i ha-1 has revealed lowest weed density (39.67, 71.25 and 17.02, 33.97 no m-2) and highest weed control efficiency (55.89, 65.78 and 84.99, 82.33 %) grain yield (4.55 and 5.47 t ha-1), gross and net income (Rs. 12116 and Rs. 64336 ha-1). However, drum seeded rice resulted higher return-1 rupee invested due to lower cost of cultivation. Hence, the SRI planting method with sequential application of pretilachlor @ 0.5 kg a.i ha-1 followed by bispyribac sodium @ 20 g a.i ha-1 has proven to be effective in controlling weeds and achieving higher grain yield and net income.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The system of rice intensification with sequential herbicides gave the lowest weed density.

Treatment
sequential application of pretilachlor @ 0.5 kg a.i ha-1 fb bispyribac sodium @ 20 g a.i ha-1e0
Interactor
weede0weed
Outcome
weed densitye0
Direction
loweste0
Value
39.67, 71.25 and 17.02, 33.97 no m-2e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“economics of puddled rice”

✓ located verbatim in the source · title, characters 69–94 · show in text ↑
e0

“the system of rice intensification and sequential application of pretilachlor @ 0.5 kg a.i ha-1 fb bispyribac sodium @ 20 g a.i ha-1 has revealed lowest weed density (39.67, 71.25 and 17.02, 33.97 no m-2) and highest weed control efficiency (55.89, 65.78 and 84.99, 82.33 %) grain yield (4.55 and 5.47 t ha-1), gross and net income (Rs. 12116 and Rs. 64336 ha-1)”

✓ located verbatim in the source · abstract, characters 611–973 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The same treatment gave the highest weed control efficiency.

Treatment
sequential application of pretilachlor @ 0.5 kg a.i ha-1 fb bispyribac sodium @ 20 g a.i ha-1e0
Interactor
weede0weed
Outcome
weed control efficiencye0
Direction
higheste0
Value
55.89, 65.78 and 84.99, 82.33 %e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“economics of puddled rice”

✓ located verbatim in the source · title, characters 69–94 · show in text ↑
e0

“the system of rice intensification and sequential application of pretilachlor @ 0.5 kg a.i ha-1 fb bispyribac sodium @ 20 g a.i ha-1 has revealed lowest weed density (39.67, 71.25 and 17.02, 33.97 no m-2) and highest weed control efficiency (55.89, 65.78 and 84.99, 82.33 %) grain yield (4.55 and 5.47 t ha-1), gross and net income (Rs. 12116 and Rs. 64336 ha-1)”

✓ located verbatim in the source · abstract, characters 611–973 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The same treatment gave a higher grain yield (4.55 and 5.47 t ha-1).

Treatment
sequential application of pretilachlor @ 0.5 kg a.i ha-1 fb bispyribac sodium @ 20 g a.i ha-1e0
Outcome
grain yielde0
Direction
higherinferrede0
Value
4.55 and 5.47 t ha-1e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“economics of puddled rice”

✓ located verbatim in the source · title, characters 69–94 · show in text ↑
e0

“the system of rice intensification and sequential application of pretilachlor @ 0.5 kg a.i ha-1 fb bispyribac sodium @ 20 g a.i ha-1 has revealed lowest weed density (39.67, 71.25 and 17.02, 33.97 no m-2) and highest weed control efficiency (55.89, 65.78 and 84.99, 82.33 %) grain yield (4.55 and 5.47 t ha-1), gross and net income (Rs. 12116 and Rs. 64336 ha-1)”

✓ located verbatim in the source · abstract, characters 611–973 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The same treatment gave a higher gross income (Rs. 12116 per ha).

Treatment
sequential application of pretilachlor @ 0.5 kg a.i ha-1 fb bispyribac sodium @ 20 g a.i ha-1e0
Outcome
grosse0
Direction
higherinferrede0
Value
Rs. 12116e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“economics of puddled rice”

✓ located verbatim in the source · title, characters 69–94 · show in text ↑
e0

“the system of rice intensification and sequential application of pretilachlor @ 0.5 kg a.i ha-1 fb bispyribac sodium @ 20 g a.i ha-1 has revealed lowest weed density (39.67, 71.25 and 17.02, 33.97 no m-2) and highest weed control efficiency (55.89, 65.78 and 84.99, 82.33 %) grain yield (4.55 and 5.47 t ha-1), gross and net income (Rs. 12116 and Rs. 64336 ha-1)”

✓ located verbatim in the source · abstract, characters 611–973 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The same treatment gave a higher net income (Rs. 64336 per ha).

Treatment
sequential application of pretilachlor @ 0.5 kg a.i ha-1 fb bispyribac sodium @ 20 g a.i ha-1e0
Outcome
net incomee0
Direction
higherinferrede0
Value
Rs. 64336 ha-1e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“economics of puddled rice”

✓ located verbatim in the source · title, characters 69–94 · show in text ↑
e0

“the system of rice intensification and sequential application of pretilachlor @ 0.5 kg a.i ha-1 fb bispyribac sodium @ 20 g a.i ha-1 has revealed lowest weed density (39.67, 71.25 and 17.02, 33.97 no m-2) and highest weed control efficiency (55.89, 65.78 and 84.99, 82.33 %) grain yield (4.55 and 5.47 t ha-1), gross and net income (Rs. 12116 and Rs. 64336 ha-1)”

✓ located verbatim in the source · abstract, characters 611–973 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Drum seeded rice gave a higher return per rupee invested, due to lower cost of cultivation.

Treatment
drum seeded ricee1
Outcome
return-1 rupee investede1
Direction
highere1
Qualifier
due to lower cost of cultivatione1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

t0

“economics of puddled rice”

✓ located verbatim in the source · title, characters 69–94 · show in text ↑
e1

“drum seeded rice resulted higher return-1 rupee invested due to lower cost of cultivation”

✓ located verbatim in the source · abstract, characters 984–1073 · show in text ↑

Pretilachlor · yield · Oryza sativa (rice)Results differ

141 papers: 133 positive, 8 negative or no effect

132 papers in the same direction as this paper · 3 in the opposite direction · 5 reporting no difference from an alternative

  1. positive
  2. positive
  3. negative

137 papers more in this group

See all 141 papers →

Pretilachlor · weed · Oryza sativa (rice)Results differ

150 papers: 147 positive, 3 negative or no effect

146 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. positive
  3. negative

146 papers more in this group

See all 150 papers →

bispyribac-sodium · yield · Oryza sativa (rice)Results differ

170 papers: 161 positive, 9 negative or no effect

160 papers in the same direction as this paper · 4 in the opposite direction · 5 reporting no difference from an alternative

  1. positive
  2. no effect
  3. no effect

166 papers more in this group

See all 170 papers →

bispyribac-sodium · weed · Oryza sativa (rice)Positive and negative results

153 papers: 149 positive, 4 negative or no effect

148 papers in the same direction as this paper · 1 in the opposite direction · 3 reporting no difference from an alternative

  1. positive
  2. positive
  3. negative

149 papers more in this group

See all 153 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.