Paper · 2013 · Agrotechnology

SRI-A Method for Sustainable Intensification of Rice Production with Enhanced Water Productivity

Mahender Kumar R

13
claims
30
verbatim quotes
11
citations
3
research areas
✓
Open access · cc-by

Abstract

Climate change induced higher temperatures will increase crops’ water requirements. Every 10°C increase in mean temperature, results in 7% decline in the yield of rice crop. Hence, there is a need to develop water saving technologies in rice which consumes more than 50% of the total irrigation water in agriculture. System of Rice Intensification (SRI) is one such water saving rice production technology. Experiments were conducted at different locations in India including research farm of Directorate of Rice Research (DRR), Hyderabad, during 2005-10 to assess the potential of SRI in comparison to normal transplanting/Standard Planting (NTP/SP) under flooded condition. SRI recorded higher grain yield (6 to 65% over NTP) at majority of locations. Long term studies clearly indicated that grain yield was significantly higher (12-23% and 4-35% over NTP in Kharif and Rabi seasons, respectively) in SRI (with organic+inorganic fertilizers) while the SRI (with100% organic manures), recorded higher yield (4-34%) over NTP only in the Rabi seasons. Even though, SRI resulted in higher productivity, the available nutrient status in soil was marginally higher (10, 42 and 13% over NTP for N, P and K, respectively) at the end of four seasons. There was a reduction in the incidence of pests in SRI and the relative abundance of plant parasitic nematodes was low in SRI as compared to the NTP. About 31% and 37% saving in irrigation water was observed during Kharif and Rabi seasons, respectively in both methods of SRI cultivation over NTP. SRI performed well and consistently reduced requirement of inputs such as seed and water in different soil conditions. SRI method, using less water for rice production can help in overcoming water shortage in future and it can also make water available for growing other crops thus promoting crop diversification

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Claims 13

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SRI recorded higher grain yield (6 to 65% over NTP) at the majority of locations.

Treatment
SRIe1
Outcome
grain yielde1
Direction
highere1
Value
6 to 65%e1
Comparator
NTPe1
Setting
different locations in Indiae2

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

“Rice Production with Enhanced Water Productivity”

✓ located verbatim in the source · title, characters 48–96 · show in text ↑
e1

“SRI recorded higher grain yield (6 to 65% over NTP) at majority of locations”

✓ located verbatim in the source · abstract, characters 676–752 · show in text ↑
e2

“Experiments were conducted at different locations in India”

✓ located verbatim in the source · abstract, characters 407–465 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Long-term SRI with organic plus inorganic fertilizers gave significantly higher grain yield, by 12-23% over NTP in Kharif.

Treatment
SRI (with organic+inorganic fertilizers)e3
Outcome
grain yielde3
Direction
highere3
Value
12-23%e3
Comparator
NTPe3
Setting
Kharife3

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

“Rice Production with Enhanced Water Productivity”

✓ located verbatim in the source · title, characters 48–96 · show in text ↑
e3

“Long term studies clearly indicated that grain yield was significantly higher (12-23% and 4-35% over NTP in Kharif and Rabi seasons, respectively) in SRI (with organic+inorganic fertilizers)”

✓ located verbatim in the source · abstract, characters 754–944 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Long-term SRI with organic plus inorganic fertilizers gave significantly higher grain yield, by 4-35% over NTP in Rabi.

Treatment
SRI (with organic+inorganic fertilizers)e3
Outcome
grain yielde3
Direction
highere3
Value
4-35%e3
Comparator
NTPe3
Setting
Rabie3

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

“Rice Production with Enhanced Water Productivity”

✓ located verbatim in the source · title, characters 48–96 · show in text ↑
e3

“Long term studies clearly indicated that grain yield was significantly higher (12-23% and 4-35% over NTP in Kharif and Rabi seasons, respectively) in SRI (with organic+inorganic fertilizers)”

✓ located verbatim in the source · abstract, characters 754–944 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SRI with 100% organic manures gave higher yield, by 4-34% over NTP, only in Rabi seasons.

Treatment
SRI (with100% organic manures)e4
Outcome
yielde4
Direction
highere4
Value
4-34%e4
Comparator
NTPe4
Setting
Rabi seasonse4

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

“Rice Production with Enhanced Water Productivity”

✓ located verbatim in the source · title, characters 48–96 · show in text ↑
e4

“while the SRI (with100% organic manures), recorded higher yield (4-34%) over NTP only in the Rabi seasons”

✓ located verbatim in the source · abstract, characters 945–1050 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

SRI marginally increased available soil N status, by 10% over NTP.

Treatment
SRIe1
Outcome
available nutrient status in soile5
Direction
marginally highere5
Value
10e5
Qualifier
for Ne5
Comparator
NTPe5

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

“Rice Production with Enhanced Water Productivity”

✓ located verbatim in the source · title, characters 48–96 · show in text ↑
e1

“SRI recorded higher grain yield (6 to 65% over NTP) at majority of locations”

✓ located verbatim in the source · abstract, characters 676–752 · show in text ↑
e5

“the available nutrient status in soil was marginally higher (10, 42 and 13% over NTP for N, P and K, respectively)”

✓ located verbatim in the source · abstract, characters 1102–1216 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

SRI marginally increased available soil P status, by 42% over NTP.

Treatment
SRIe1
Outcome
available nutrient status in soile5
Direction
marginally highere5
Value
42e5
Qualifier
for N, P and Ke5
Comparator
NTPe5

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

“Rice Production with Enhanced Water Productivity”

✓ located verbatim in the source · title, characters 48–96 · show in text ↑
e1

“SRI recorded higher grain yield (6 to 65% over NTP) at majority of locations”

✓ located verbatim in the source · abstract, characters 676–752 · show in text ↑
e5

“the available nutrient status in soil was marginally higher (10, 42 and 13% over NTP for N, P and K, respectively)”

✓ located verbatim in the source · abstract, characters 1102–1216 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

SRI marginally increased available soil K status, by 13% over NTP.

Treatment
SRIe1
Outcome
available nutrient status in soile5
Direction
marginally highere5
Value
13e5
Qualifier
for N, P and Ke5
Comparator
NTPe5

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

“Rice Production with Enhanced Water Productivity”

✓ located verbatim in the source · title, characters 48–96 · show in text ↑
e1

“SRI recorded higher grain yield (6 to 65% over NTP) at majority of locations”

✓ located verbatim in the source · abstract, characters 676–752 · show in text ↑
e5

“the available nutrient status in soil was marginally higher (10, 42 and 13% over NTP for N, P and K, respectively)”

✓ located verbatim in the source · abstract, characters 1102–1216 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SRI reduced the incidence of pests compared with NTP.

Treatment
SRIe6
Outcome
incidence of pestse6
Direction
reductione6
Comparator
NTPe6

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

“Rice Production with Enhanced Water Productivity”

✓ located verbatim in the source · title, characters 48–96 · show in text ↑
e6

“There was a reduction in the incidence of pests in SRI and the relative abundance of plant parasitic nematodes was low in SRI as compared to the NTP”

✓ located verbatim in the source · abstract, characters 1245–1393 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SRI gave a low relative abundance of plant parasitic nematodes compared with NTP.

Treatment
SRIe6
Interactor
plant parasitic nematodese6pest
Outcome
relative abundance of plant parasitic nematodese6
Direction
lowe6
Comparator
NTPe6

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

“Rice Production with Enhanced Water Productivity”

✓ located verbatim in the source · title, characters 48–96 · show in text ↑
e6

“There was a reduction in the incidence of pests in SRI and the relative abundance of plant parasitic nematodes was low in SRI as compared to the NTP”

✓ located verbatim in the source · abstract, characters 1245–1393 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SRI saved 31% of irrigation water over NTP in Kharif.

Treatment
SRIe7
Outcome
saving in irrigation watere7
Direction
savinge7
Value
31%e7
Comparator
NTPe7
Setting
Kharife7

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

“Rice Production with Enhanced Water Productivity”

✓ located verbatim in the source · title, characters 48–96 · show in text ↑
e7

“About 31% and 37% saving in irrigation water was observed during Kharif and Rabi seasons, respectively in both methods of SRI cultivation over NTP”

✓ located verbatim in the source · abstract, characters 1395–1541 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SRI saved 37% of irrigation water over NTP in Rabi.

Treatment
SRIe7
Outcome
saving in irrigation watere7
Direction
savinge7
Value
37%e7
Comparator
NTPe7
Setting
Rabie7

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

“Rice Production with Enhanced Water Productivity”

✓ located verbatim in the source · title, characters 48–96 · show in text ↑
e7

“About 31% and 37% saving in irrigation water was observed during Kharif and Rabi seasons, respectively in both methods of SRI cultivation over NTP”

✓ located verbatim in the source · abstract, characters 1395–1541 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SRI consistently reduced the requirement of inputs such as seed and water across different soil conditions.

Treatment
SRIe0
Outcome
requirement of inputs such as seed and watere0
Direction
reducede0

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

“Rice Production with Enhanced Water Productivity”

✓ located verbatim in the source · title, characters 48–96 · show in text ↑
e0

“SRI performed well and consistently reduced requirement of inputs such as seed and water in different soil conditions”

✓ located verbatim in the source · abstract, characters 1543–1660 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

The SRI method can help overcome water shortage and promote crop diversification in rice production.

Outcome
overcoming water shortagee0
Qualifier
promoting crop diversificatione0

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

“Rice Production with Enhanced Water Productivity”

✓ located verbatim in the source · title, characters 48–96 · show in text ↑
e0

“SRI method, using less water for rice production can help in overcoming water shortage in future and it can also make water available for growing other crops thus promoting crop diversification”

✓ located verbatim in the source · abstract, characters 1662–1855 · show in text ↑

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

20 papers: 17 positive, 3 negative or no effect

16 papers in the same direction as this paper · 3 in the opposite direction

  1. positive
  2. negative
  3. negative

16 papers more in this group

See all 20 papers →

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

28 papers: 20 positive, 8 negative or no effect

19 papers in the same direction as this paper · 6 in the opposite direction · 2 reporting no difference from an alternative

  1. positive
  2. no effect
  3. negative

24 papers more in this group

See all 28 papers →

irrigation · physiology: water · Oryza sativa (rice)Positive and negative results

380 papers: 350 positive, 30 negative or no effect

349 papers in the same direction as this paper · 25 in the opposite direction · 5 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

376 papers more in this group

See all 380 papers →

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

1,171 papers: 906 positive, 265 negative or no effect

905 papers in the same direction as this paper · 201 in the opposite direction · 64 reporting no difference from an alternative

  1. no effect
  2. positive
  3. positive

1,167 papers more in this group

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

3,455 papers: 3,183 positive, 272 negative or no effect

3,182 papers in the same direction as this paper · 207 in the opposite direction · 65 reporting no difference from an alternative

  1. positive
  2. no effect
  3. no effect

3,451 papers more in this group

See all 3,455 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.