Paper · 2017 · Applied Ecology and Environmental Research

EFFECTS OF DRIP IRRIGATION SYSTEM FOR ENHANCING RICE (ORYZA SATIVA L.) YIELD UNDER SYSTEM OF RICE INTENSIFICATION MANAGEMENT

K. V. R. RAO

8
claims
23
verbatim quotes
19
citations
2
research areas
✓
Open access

Abstract

To increase both water productivity and rice production, research was carried out at the Central Institute of Agricultural Engineering, Bhopal, India, to evaluate the use of drip irrigation together with modifications in rice crop geometry and other cultural practices. Experiments were conducted with five alternative treatments: T 1 : Conventional paddy cultivation under continuous flooding, T 2 : System of Rice Intensification (SRI) methods which include alternate wetting and drying, T 3 : SRI methods with dripirrigation, the emitters being spaced at 20 cm, T 4 : SRI methods with drip emitters spaced at 30 cm, and T 5 : SRI methods with drip emitters spaced at 40 cm. Greatest plant height and root length were recorded with SRI under drip irrigation at 20 cm spacing (T3). Yield and yield-contributing parameters were also significantly higher with this T3 treatment as compared with conventional practice (TI): productive tillers/m 2 , number of grains per panicle, average panicle length and weight, average grain yield (7 t/ha), and harvest index. Superior performance of the T3 treatment in terms of water productivity and waterenergy productivity was also recorded. Among the drip-irrigated treatments, however, there was no statistically significant difference in grain yield between T3 and T4 treatments, indicating that drippers spaced at 30 cm could be recommended to lower the cost of the drip system installation.

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Claims 8

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SRI with drip irrigation at 20 cm emitter spacing gave the greatest plant height and root length in rice

Taxon
RICE (ORYZA SATIVA L.)Oryza sativat0
Treatment
SRI under drip irrigation at 20 cm spacinge1
Outcome
plant height and root lengthe1
Direction
Greateste1
Setting
Bhopal, Indiae0

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

“ENHANCING RICE (ORYZA SATIVA L.) YIELD”

✓ located verbatim in the source · title, characters 38–76 · show in text ↑
e0

“research was carried out at the Central Institute of Agricultural Engineering, Bhopal, India”

✓ located verbatim in the source · abstract, characters 57–149 · show in text ↑
e1

“Greatest plant height and root length were recorded with SRI under drip irrigation at 20 cm spacing (T3)”

✓ located verbatim in the source · abstract, characters 677–781 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

T3 significantly increased average grain yield of rice (7 t/ha) compared with conventional practice

Taxon
RICE (ORYZA SATIVA L.)Oryza sativat0
Treatment
T3 treatmente2
Outcome
average grain yielde2
Direction
significantly highere2
Value
7 t/hae2
Comparator
conventional practicee2
Setting
Bhopal, Indiae0

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

“ENHANCING RICE (ORYZA SATIVA L.) YIELD”

✓ located verbatim in the source · title, characters 38–76 · show in text ↑
e0

“research was carried out at the Central Institute of Agricultural Engineering, Bhopal, India”

✓ located verbatim in the source · abstract, characters 57–149 · show in text ↑
e2

“Yield and yield-contributing parameters were also significantly higher with this T3 treatment as compared with conventional practice (TI): productive tillers/m 2 , number of grains per panicle, average panicle length and weight, average grain yield (7 t/ha), and harvest index”

✓ located verbatim in the source · abstract, characters 783–1059 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

T3 significantly increased productive tillers per m2 and grains per panicle compared with conventional practice

Taxon
RICE (ORYZA SATIVA L.)Oryza sativat0
Treatment
T3 treatmente2
Outcome
productive tillers/m 2 , number of grains per paniclee2
Direction
significantly highere2
Comparator
conventional practicee2
Setting
Bhopal, Indiae0

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

“ENHANCING RICE (ORYZA SATIVA L.) YIELD”

✓ located verbatim in the source · title, characters 38–76 · show in text ↑
e0

“research was carried out at the Central Institute of Agricultural Engineering, Bhopal, India”

✓ located verbatim in the source · abstract, characters 57–149 · show in text ↑
e2

“Yield and yield-contributing parameters were also significantly higher with this T3 treatment as compared with conventional practice (TI): productive tillers/m 2 , number of grains per panicle, average panicle length and weight, average grain yield (7 t/ha), and harvest index”

✓ located verbatim in the source · abstract, characters 783–1059 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

T3 significantly increased average panicle length and weight compared with conventional practice

Taxon
RICE (ORYZA SATIVA L.)Oryza sativat0
Treatment
T3 treatmente2
Outcome
average panicle length and weighte2
Direction
significantly highere2
Comparator
conventional practicee2
Setting
Bhopal, Indiae0

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

“ENHANCING RICE (ORYZA SATIVA L.) YIELD”

✓ located verbatim in the source · title, characters 38–76 · show in text ↑
e0

“research was carried out at the Central Institute of Agricultural Engineering, Bhopal, India”

✓ located verbatim in the source · abstract, characters 57–149 · show in text ↑
e2

“Yield and yield-contributing parameters were also significantly higher with this T3 treatment as compared with conventional practice (TI): productive tillers/m 2 , number of grains per panicle, average panicle length and weight, average grain yield (7 t/ha), and harvest index”

✓ located verbatim in the source · abstract, characters 783–1059 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

T3 significantly increased harvest index compared with conventional practice

Taxon
RICE (ORYZA SATIVA L.)Oryza sativat0
Treatment
T3 treatmente2
Outcome
harvest indexe2
Direction
significantly highere2
Comparator
conventional practicee2
Setting
Bhopal, Indiae0

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

“ENHANCING RICE (ORYZA SATIVA L.) YIELD”

✓ located verbatim in the source · title, characters 38–76 · show in text ↑
e0

“research was carried out at the Central Institute of Agricultural Engineering, Bhopal, India”

✓ located verbatim in the source · abstract, characters 57–149 · show in text ↑
e2

“Yield and yield-contributing parameters were also significantly higher with this T3 treatment as compared with conventional practice (TI): productive tillers/m 2 , number of grains per panicle, average panicle length and weight, average grain yield (7 t/ha), and harvest index”

✓ located verbatim in the source · abstract, characters 783–1059 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T3 gave superior water productivity and water-energy productivity in rice

Taxon
RICE (ORYZA SATIVA L.)Oryza sativat0
Treatment
T3 treatmente3
Outcome
water productivity and waterenergy productivitye3
Direction
Superiore3
Setting
Bhopal, Indiae0

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

“ENHANCING RICE (ORYZA SATIVA L.) YIELD”

✓ located verbatim in the source · title, characters 38–76 · show in text ↑
e0

“research was carried out at the Central Institute of Agricultural Engineering, Bhopal, India”

✓ located verbatim in the source · abstract, characters 57–149 · show in text ↑
e3

“Superior performance of the T3 treatment in terms of water productivity and waterenergy productivity was also recorded”

✓ located verbatim in the source · abstract, characters 1061–1179 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

No statistically significant difference in grain yield between T3 and T4 among drip-irrigated treatments

Taxon
RICE (ORYZA SATIVA L.)Oryza sativat0
Treatment
T3e4
Outcome
grain yielde4
Direction
no statistically significant differencee4
Comparator
T4e4
Setting
Bhopal, Indiae0

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

“ENHANCING RICE (ORYZA SATIVA L.) YIELD”

✓ located verbatim in the source · title, characters 38–76 · show in text ↑
e0

“research was carried out at the Central Institute of Agricultural Engineering, Bhopal, India”

✓ located verbatim in the source · abstract, characters 57–149 · show in text ↑
e4

“Among the drip-irrigated treatments, however, there was no statistically significant difference in grain yield between T3 and T4 treatments”

✓ located verbatim in the source · abstract, characters 1181–1320 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Drippers spaced at 30 cm are recommended to lower the cost of the drip system installation

Taxon
RICE (ORYZA SATIVA L.)Oryza sativat0
Outcome
drippers spaced at 30 cme5
Qualifier
lower the cost of the drip system installatione5

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

“ENHANCING RICE (ORYZA SATIVA L.) YIELD”

✓ located verbatim in the source · title, characters 38–76 · show in text ↑
e5

“drippers spaced at 30 cm could be recommended to lower the cost of the drip system installation”

✓ located verbatim in the source · abstract, characters 1338–1433 · show in text ↑

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

96 papers: 73 positive, 23 negative or no effect

72 papers in the same direction as this paper · 23 in the opposite direction

  1. no effect
  2. no effect
  3. negative

92 papers more in this group

See all 96 papers →

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

291 papers: 222 positive, 69 negative or no effect

221 papers in the same direction as this paper · 62 in the opposite direction · 7 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

287 papers more in this group

See all 291 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.