Paper · 2019 · Journal of Pharmacognosy and Phytochemistry

Studies on root growth, yield and NPK uptake of rice as influenced by different establishment techniques and N-levels

P Amara Jyothi; M. Martin Luther; A. Upendra Rao; et al.

10
claims
10
verbatim quotes
3
citations
2
research areas
✓
Open access

Abstract

A field experiment was conducted for two consecutive years 2015-16 and 2016-17 at Agricultural Research Station, Ragolu, Andhra Pradesh, with four establishment techniques Viz., dry direct sown rice, aerobic rice, machine planting and normal (manual) planting as main plots and five nitrogen levels (90,120,150,180 and 210 kg ha-1) as sub plots in a split plot design on sandy clay loam soil. The study revealed that among crop establishments of rice root volume, root dry weight, uptake of N, P and K at harvest, grain yield and straw yield of rice was significantly higher with machine planting and these parameters were the lowest with aerobic rice. Among the nitrogen levels studied, the maximum root volume, root dry weight, uptake of N, P and K at harvest, grain yield and straw yield of rice were recorded with application of nitrogen @ 210 kg N ha-1 and were comparable with application of 180 and 150 kg N ha-1 during both the years of study.

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Claims 10

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Machine planting significantly increased rice root volume relative to aerobic rice.

Treatment
machine plantinge0
Outcome
root volumee0
Direction
highere0
Comparator
aerobic ricee0

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

e0

“root volume, root dry weight, uptake of N, P and K at harvest, grain yield and straw yield of rice was significantly higher with machine planting and these parameters were the lowest with aerobic rice”

✓ located verbatim in the source · abstract, characters 451–651 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Machine planting significantly increased rice root dry weight relative to aerobic rice.

Treatment
machine plantinge0
Outcome
root dry weighte0
Direction
highere0
Comparator
aerobic ricee0

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

e0

“root volume, root dry weight, uptake of N, P and K at harvest, grain yield and straw yield of rice was significantly higher with machine planting and these parameters were the lowest with aerobic rice”

✓ located verbatim in the source · abstract, characters 451–651 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Machine planting significantly increased rice uptake of N, P and K at harvest relative to aerobic rice.

Treatment
machine plantinge0
Outcome
uptake of N, P and K at harveste0
Direction
highere0
Comparator
aerobic ricee0

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

e0

“root volume, root dry weight, uptake of N, P and K at harvest, grain yield and straw yield of rice was significantly higher with machine planting and these parameters were the lowest with aerobic rice”

✓ located verbatim in the source · abstract, characters 451–651 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Machine planting significantly increased rice grain yield relative to aerobic rice.

Treatment
machine plantinge0
Outcome
grain yielde0
Direction
highere0
Comparator
aerobic ricee0

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

e0

“root volume, root dry weight, uptake of N, P and K at harvest, grain yield and straw yield of rice was significantly higher with machine planting and these parameters were the lowest with aerobic rice”

✓ located verbatim in the source · abstract, characters 451–651 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Machine planting significantly increased rice straw yield relative to aerobic rice.

Treatment
machine plantinge0
Outcome
straw yielde0
Direction
highere0
Comparator
aerobic ricee0

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

e0

“root volume, root dry weight, uptake of N, P and K at harvest, grain yield and straw yield of rice was significantly higher with machine planting and these parameters were the lowest with aerobic rice”

✓ located verbatim in the source · abstract, characters 451–651 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 210 kg N ha-1, rice root volume was maximal and comparable with 180 and 150 kg N ha-1.

Treatment
application of nitrogen @ 210 kg N ha-1e0
Outcome
root volumee0
Direction
maximume0
Comparator
application of 180 and 150 kg N ha-1e0

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

e0

“the maximum root volume, root dry weight, uptake of N, P and K at harvest, grain yield and straw yield of rice were recorded with application of nitrogen @ 210 kg N ha-1 and were comparable with application of 180 and 150 kg N ha-1 during both the years of study”

✓ located verbatim in the source · abstract, characters 688–950 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 210 kg N ha-1, rice root dry weight was maximal and comparable with 180 and 150 kg N ha-1.

Treatment
application of nitrogen @ 210 kg N ha-1e0
Outcome
root dry weighte0
Direction
maximume0
Comparator
application of 180 and 150 kg N ha-1e0

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

e0

“the maximum root volume, root dry weight, uptake of N, P and K at harvest, grain yield and straw yield of rice were recorded with application of nitrogen @ 210 kg N ha-1 and were comparable with application of 180 and 150 kg N ha-1 during both the years of study”

✓ located verbatim in the source · abstract, characters 688–950 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 210 kg N ha-1, rice uptake of N, P and K at harvest was maximal and comparable with 180 and 150 kg N ha-1.

Treatment
application of nitrogen @ 210 kg N ha-1e0
Outcome
uptake of N, P and K at harveste0
Direction
maximume0
Comparator
application of 180 and 150 kg N ha-1e0

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

e0

“the maximum root volume, root dry weight, uptake of N, P and K at harvest, grain yield and straw yield of rice were recorded with application of nitrogen @ 210 kg N ha-1 and were comparable with application of 180 and 150 kg N ha-1 during both the years of study”

✓ located verbatim in the source · abstract, characters 688–950 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 210 kg N ha-1, rice grain yield was maximal and comparable with 180 and 150 kg N ha-1.

Treatment
application of nitrogen @ 210 kg N ha-1e0
Outcome
grain yielde0
Direction
maximume0
Comparator
application of 180 and 150 kg N ha-1e0

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

e0

“the maximum root volume, root dry weight, uptake of N, P and K at harvest, grain yield and straw yield of rice were recorded with application of nitrogen @ 210 kg N ha-1 and were comparable with application of 180 and 150 kg N ha-1 during both the years of study”

✓ located verbatim in the source · abstract, characters 688–950 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 210 kg N ha-1, rice straw yield was maximal and comparable with 180 and 150 kg N ha-1.

Treatment
application of nitrogen @ 210 kg N ha-1e0
Outcome
straw yielde0
Direction
maximume0
Comparator
application of 180 and 150 kg N ha-1e0

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

e0

“the maximum root volume, root dry weight, uptake of N, P and K at harvest, grain yield and straw yield of rice were recorded with application of nitrogen @ 210 kg N ha-1 and were comparable with application of 180 and 150 kg N ha-1 during both the years of study”

✓ located verbatim in the source · abstract, characters 688–950 · show in text ↑

nitrogen · growth · Oryza sativa (rice)Positive and negative results

511 papers: 402 positive, 109 negative or no effect

401 papers in the same direction as this paper · 101 in the opposite direction · 8 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

507 papers more in this group

See all 511 papers →

nitrogen · yield · Oryza sativa (rice)Positive and negative results

2,045 papers: 1,803 positive, 242 negative or no effect

1,802 papers in the same direction as this paper · 193 in the opposite direction · 49 reporting no difference from an alternative

  1. negative
  2. negative
  3. 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.