Abstract
A field study was conduded during the kharif season of 2008 and 2009 to find out the effed of irrigation schedules, weed management practices and nitrogen levels on growth, yield attributes, grain yield and economics of aerobic rice. Pooled data of two years on yield attributes and grain yield were not much varied between irrigation scheduled at 7 days interval during vegetative stage and 4 days interval during reproductive stage and irrigation once in 2 days. In former treatment, water productivity (WP), gross and net income and benefit cost (B: C) ratio were higher. Pre emergence application of pendimethaiin @ 1 kg a.i. ha−1 followed by (fb) cono weeding at 30 days after sowing (DAS) and one hand weeding (HW) at 45 DAS recorded significantly higher tiller number, dry matter production, panicle number and weight and filled spikelets per panicle, grain yield (4991 kg ha−1) and NPK uptake at harvest than pre emergence application of pendimethalin @ 1 kg a.i. ha−1 fb 2, 40 Na salt @ 1 kg a.i. ha−1 at 40 DAS and HW at 20 and 45 DAS. The water productivity, gross and net income and B: C ratio were higher in former treatment. Pooled data of yield attributes, grain yield and NPK uptake were not much varied among N levels. The water productivity, gross and net income and B: C ratio were higher at 180 kg N ha−1.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 12
Claim · model-written summary
Yield attributes and grain yield of aerobic rice did not vary much between irrigation at 7-day interval in the vegetative stage and 4-day interval in the reproductive stage and irrigation once in 2 days (pooled over two years).
Verbatim
t0“Aerobic Rice”
e1“Pooled data of two years on yield attributes and grain yield were not much varied between irrigation scheduled at 7 days interval during vegetative stage and 4 days interval during reproductive stage and irrigation once in 2 days”
Claim · model-written summary
Water productivity was higher under the 7-day vegetative / 4-day reproductive irrigation schedule than under irrigation once in 2 days.
Verbatim
t0“Aerobic Rice”
e1“Pooled data of two years on yield attributes and grain yield were not much varied between irrigation scheduled at 7 days interval during vegetative stage and 4 days interval during reproductive stage and irrigation once in 2 days”
e2“In former treatment, water productivity (WP), gross and net income and benefit cost (B: C) ratio were higher”
Claim · model-written summary
Gross income, net income and benefit cost ratio were higher under the 7-day vegetative / 4-day reproductive irrigation schedule than under irrigation once in 2 days.
Verbatim
t0“Aerobic Rice”
e1“Pooled data of two years on yield attributes and grain yield were not much varied between irrigation scheduled at 7 days interval during vegetative stage and 4 days interval during reproductive stage and irrigation once in 2 days”
e2“In former treatment, water productivity (WP), gross and net income and benefit cost (B: C) ratio were higher”
Claim · model-written summary
Pre-emergence pendimethalin followed by cono weeding at 30 DAS and one hand weeding at 45 DAS gave significantly higher tiller number and dry matter production than pendimethalin followed by 2,4-D sodium salt at 40 DAS and hand weeding at 20 and 45 DAS.
- Taxon
- Aerobic Ricet0
- Treatment
- Pre emergence application of pendimethaiin @ 1 kg a.i. ha−1 followed by (fb) cono weeding at 30 days after sowing (DAS) and one hand weeding (HW) at 45 DASe0
- Outcome
- tiller number, dry matter productione0
- Direction
- significantly highere0
- Comparator
- pre emergence application of pendimethalin @ 1 kg a.i. ha−1 fb 2, 40 Na salt @ 1 kg a.i. ha−1 at 40 DAS and HW at 20 and 45 DASe0
Verbatim
t0“Aerobic Rice”
e0“Pre emergence application of pendimethaiin @ 1 kg a.i. ha−1 followed by (fb) cono weeding at 30 days after sowing (DAS) and one hand weeding (HW) at 45 DAS recorded significantly higher tiller number, dry matter production, panicle number and weight and filled spikelets per panicle, grain yield (4991 kg ha−1) and NPK uptake at harvest than pre emergence application of pendimethalin @ 1 kg a.i. ha−1 fb 2, 40 Na salt @ 1 kg a.i. ha−1 at 40 DAS and HW at 20 and 45 DAS”
Claim · model-written summary
The same weed management treatment gave significantly higher panicle number, panicle weight and filled spikelets per panicle than the comparator weed management.
- Taxon
- Aerobic Ricet0
- Treatment
- Pre emergence application of pendimethaiin @ 1 kg a.i. ha−1 followed by (fb) cono weeding at 30 days after sowing (DAS) and one hand weeding (HW) at 45 DASe0
- Outcome
- panicle number and weight and filled spikelets per paniclee0
- Direction
- significantly highere0
- Comparator
- pre emergence application of pendimethalin @ 1 kg a.i. ha−1 fb 2, 40 Na salt @ 1 kg a.i. ha−1 at 40 DAS and HW at 20 and 45 DASe0
Verbatim
t0“Aerobic Rice”
e0“Pre emergence application of pendimethaiin @ 1 kg a.i. ha−1 followed by (fb) cono weeding at 30 days after sowing (DAS) and one hand weeding (HW) at 45 DAS recorded significantly higher tiller number, dry matter production, panicle number and weight and filled spikelets per panicle, grain yield (4991 kg ha−1) and NPK uptake at harvest than pre emergence application of pendimethalin @ 1 kg a.i. ha−1 fb 2, 40 Na salt @ 1 kg a.i. ha−1 at 40 DAS and HW at 20 and 45 DAS”
Claim · model-written summary
The same weed management treatment gave significantly higher grain yield (4991 kg ha-1) than the comparator weed management.
- Taxon
- Aerobic Ricet0
- Treatment
- Pre emergence application of pendimethaiin @ 1 kg a.i. ha−1 followed by (fb) cono weeding at 30 days after sowing (DAS) and one hand weeding (HW) at 45 DASe0
- Outcome
- grain yielde0
- Direction
- significantly highere0
- Value
- 4991 kg ha−1e0
- Comparator
- pre emergence application of pendimethalin @ 1 kg a.i. ha−1 fb 2, 40 Na salt @ 1 kg a.i. ha−1 at 40 DAS and HW at 20 and 45 DASe0
Verbatim
t0“Aerobic Rice”
e0“Pre emergence application of pendimethaiin @ 1 kg a.i. ha−1 followed by (fb) cono weeding at 30 days after sowing (DAS) and one hand weeding (HW) at 45 DAS recorded significantly higher tiller number, dry matter production, panicle number and weight and filled spikelets per panicle, grain yield (4991 kg ha−1) and NPK uptake at harvest than pre emergence application of pendimethalin @ 1 kg a.i. ha−1 fb 2, 40 Na salt @ 1 kg a.i. ha−1 at 40 DAS and HW at 20 and 45 DAS”
Claim · model-written summary
The same weed management treatment gave significantly higher NPK uptake at harvest than the comparator weed management.
- Taxon
- Aerobic Ricet0
- Treatment
- Pre emergence application of pendimethaiin @ 1 kg a.i. ha−1 followed by (fb) cono weeding at 30 days after sowing (DAS) and one hand weeding (HW) at 45 DASe0
- Outcome
- NPK uptake at harveste0
- Direction
- significantly highere0
- Comparator
- pre emergence application of pendimethalin @ 1 kg a.i. ha−1 fb 2, 40 Na salt @ 1 kg a.i. ha−1 at 40 DAS and HW at 20 and 45 DASe0
Verbatim
t0“Aerobic Rice”
e0“Pre emergence application of pendimethaiin @ 1 kg a.i. ha−1 followed by (fb) cono weeding at 30 days after sowing (DAS) and one hand weeding (HW) at 45 DAS recorded significantly higher tiller number, dry matter production, panicle number and weight and filled spikelets per panicle, grain yield (4991 kg ha−1) and NPK uptake at harvest than pre emergence application of pendimethalin @ 1 kg a.i. ha−1 fb 2, 40 Na salt @ 1 kg a.i. ha−1 at 40 DAS and HW at 20 and 45 DAS”
Claim · model-written summary
Water productivity was higher under the pendimethalin plus cono weeding plus hand weeding treatment than under the comparator weed management.
- Taxon
- Aerobic Ricet0
- Treatment
- Pre emergence application of pendimethaiin @ 1 kg a.i. ha−1 followed by (fb) cono weeding at 30 days after sowing (DAS) and one hand weeding (HW) at 45 DASe0
- Outcome
- water productivitye1
- Direction
- highere1
- Comparator
- pre emergence application of pendimethalin @ 1 kg a.i. ha−1 fb 2, 40 Na salt @ 1 kg a.i. ha−1 at 40 DAS and HW at 20 and 45 DASe0
Verbatim
t0“Aerobic Rice”
e0“Pre emergence application of pendimethaiin @ 1 kg a.i. ha−1 followed by (fb) cono weeding at 30 days after sowing (DAS) and one hand weeding (HW) at 45 DAS recorded significantly higher tiller number, dry matter production, panicle number and weight and filled spikelets per panicle, grain yield (4991 kg ha−1) and NPK uptake at harvest than pre emergence application of pendimethalin @ 1 kg a.i. ha−1 fb 2, 40 Na salt @ 1 kg a.i. ha−1 at 40 DAS and HW at 20 and 45 DAS”
e1“The water productivity, gross and net income and B: C ratio were higher in former treatment”
Claim · model-written summary
Gross income, net income and B:C ratio were higher under the pendimethalin plus cono weeding plus hand weeding treatment than under the comparator weed management.
- Taxon
- Aerobic Ricet0
- Treatment
- Pre emergence application of pendimethaiin @ 1 kg a.i. ha−1 followed by (fb) cono weeding at 30 days after sowing (DAS) and one hand weeding (HW) at 45 DASe0
- Outcome
- gross and net income and B: C ratioe1
- Direction
- highere1
- Comparator
- pre emergence application of pendimethalin @ 1 kg a.i. ha−1 fb 2, 40 Na salt @ 1 kg a.i. ha−1 at 40 DAS and HW at 20 and 45 DASe0
Verbatim
t0“Aerobic Rice”
e0“Pre emergence application of pendimethaiin @ 1 kg a.i. ha−1 followed by (fb) cono weeding at 30 days after sowing (DAS) and one hand weeding (HW) at 45 DAS recorded significantly higher tiller number, dry matter production, panicle number and weight and filled spikelets per panicle, grain yield (4991 kg ha−1) and NPK uptake at harvest than pre emergence application of pendimethalin @ 1 kg a.i. ha−1 fb 2, 40 Na salt @ 1 kg a.i. ha−1 at 40 DAS and HW at 20 and 45 DAS”
e1“The water productivity, gross and net income and B: C ratio were higher in former treatment”
Claim · model-written summary
Yield attributes, grain yield and NPK uptake did not vary much among nitrogen levels (pooled data).
- Taxon
- Aerobic Ricet0
- Treatment
- N levelse1
- Outcome
- yield attributes, grain yield and NPK uptakee1
- Direction
- not much variede1
Not reportedComparator
Verbatim
t0“Aerobic Rice”
e1“Pooled data of yield attributes, grain yield and NPK uptake were not much varied among N levels”
Claim · model-written summary
Water productivity was higher at 180 kg N ha-1.
Not reportedComparator
Verbatim
t0“Aerobic Rice”
e1“The water productivity, gross and net income and B: C ratio were higher at 180 kg N ha−1”
Claim · model-written summary
Gross income, net income and B:C ratio were higher at 180 kg N ha-1.
- Taxon
- Aerobic Ricet0
- Treatment
- 180 kg N ha−1e1
- Outcome
- gross and net income and B: C ratioe1
- Direction
- highere1
Not reportedComparator
Verbatim
t0“Aerobic Rice”
e1“The water productivity, gross and net income and B: C ratio were higher at 180 kg N ha−1”
The same questions in other papers
herbicide · physiology: water · Oryza sativa (rice)Positive and negative results
11 papers in the same direction as this paper · 1 reporting no difference from an alternative
- no effect
- positive
- positive
9 papers more in this group
See all 13 papers →nitrogen · physiology: water · Oryza sativa (rice)Positive and negative results
28 papers in the same direction as this paper · 4 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- negative
30 papers more in this group
See all 34 papers →irrigation · physiology: water · Oryza sativa (rice)Positive and negative results
349 papers in the same direction as this paper · 25 in the opposite direction · 5 reporting no difference from an alternative
- positive
- negative
- no effect
376 papers more in this group
See all 380 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
- no effect
- negative
798 papers more in this group
See all 802 papers →irrigation · yield · Oryza sativa (rice)Positive and negative results
905 papers in the same direction as this paper · 201 in the opposite direction · 64 reporting no difference from an alternative
- positive
- negative
- negative
1,167 papers more in this group
See all 1,171 papers →nitrogen · yield · Oryza sativa (rice)Positive and negative results
1,802 papers in the same direction as this paper · 193 in the opposite direction · 49 reporting no difference from an alternative
- no effect
- negative
- negative
2,041 papers more in this group
See all 2,045 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.