Paper · 2001 · Indian Journal of Agronomy

Productivity and economics of rice (Oryza sativa)maize (Zea mays) as influenced by methods of crop establishment, Zn and S application in rice

A.G. CHANDRAPALA; M. YAKADRI R. MAHENDER KUMAR; G. BHUPAL RAJ

19
claims
21
verbatim quotes
25
citations
2
research areas
✓
Open access

Abstract

A field experiment was conducted during 2007-08 and 2008-09 at Hyderabad, to study the effect of three rice ( Or yza sativa L.) establishment methods [sowing of sprouted rice under puddle condition (DS) at 25 cm x 25 cm, system of rice intensification (SRI) seedlings transplanted at 25 cm x 25 cm and conventional transplanting (CT) at 20 cm x 15 cm] as main plots and five nutrient combinations (NPK, NPK + Zn, NPK + S, NPK + Zn + S and NPK + FYM ) in sub - plots on rice-maize ( Zea mays L.) sequence in a spilt plot design with treatments replicated thrice. On an average rice under SRI recorded the higher drymatter accumulation /hill, yield attributes and yield. On an average SRI rice maize sequence recorded the highest rice equivalent yield (11.37 t/ha on mean basis), net re- turns (58,346 Rs/ha) and benefit : cost ratio (BCR). Application of S, Zn and FYM improved significantly the pro- ductivity of rice and succeeding maize crop. Among nutrient management practices, NPK + Zn + S recorded higher grain yield (5.27 t/ha) and yield attributes during both years of rice cultivation, except that it was on par with NPK + FYM in 2008-09. Similar trend was also observed in uptake of nutrients. Based on the systems productivity (11.72 t/ha), net returns (58,983 Rs/ha), and BCR, NPK + Zn + S treatment excelled all other nutrient combina- tions. SRI method used 23 and 25% less water compared to CT and DS. NPK + FYM application to rice crop re- corded significantly highest quantity of available soil N, P and K content after crop harvest. While, highest avail- able soil S and Zn content was recorded by the treatments where in respective nutrients were applied in the previ- ous season to rice. Thus it is concluded that SRI rice maize is more productive, beneficial and efficient water user. Both Zn and S be applied to rice to raise the productivity of subsequent maize too.

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Claims 19

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SRI rice had higher dry matter accumulation per hill, yield attributes and yield on average.

Treatment
SRIe0
Outcome
drymatter accumulation /hill, yield attributes and yielde0
Direction
highere0

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

e0

“On an average rice under SRI recorded the higher drymatter accumulation /hill, yield attributes and yield.”

✓ located verbatim in the source · abstract, characters 562–668 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The SRI rice maize sequence had the highest rice equivalent yield, 11.37 t/ha on average.

Treatment
SRIe0
Outcome
rice equivalent yielde0
Direction
higheste0
Value
11.37 t/hae0

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

e0

“On an average SRI rice maize sequence recorded the highest rice equivalent yield (11.37 t/ha on mean basis), net re- turns (58,346 Rs/ha) and benefit : cost ratio (BCR).”

✓ located verbatim in the source · abstract, characters 669–838 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The SRI rice maize sequence had the highest net returns, 58,346 Rs/ha.

Treatment
SRIe0
Outcome
net re- turnse0
Direction
higheste0
Value
58,346 Rs/hae0

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

e0

“On an average SRI rice maize sequence recorded the highest rice equivalent yield (11.37 t/ha on mean basis), net re- turns (58,346 Rs/ha) and benefit : cost ratio (BCR).”

✓ located verbatim in the source · abstract, characters 669–838 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The SRI rice maize sequence had the highest benefit cost ratio.

Treatment
SRIe0
Outcome
benefit : cost ratio (BCR)e0
Direction
higheste0

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

e0

“On an average SRI rice maize sequence recorded the highest rice equivalent yield (11.37 t/ha on mean basis), net re- turns (58,346 Rs/ha) and benefit : cost ratio (BCR).”

✓ located verbatim in the source · abstract, characters 669–838 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Sulfur, zinc and farmyard manure applications significantly improved rice productivity.

Treatment
S, Zn and FYMe0
Outcome
pro- ductivity of ricee0
Direction
improvede0

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

e0

“Application of S, Zn and FYM improved significantly the pro- ductivity of rice and succeeding maize crop.”

✓ located verbatim in the source · abstract, characters 839–944 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Sulfur, zinc and farmyard manure applications significantly improved subsequent maize productivity.

Taxon
maizeZea mayse0
Treatment
S, Zn and FYMe0
Outcome
succeeding maize crope0
Direction
improvede0

Not reportedComparator

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

Zea mays
Zea mays · TaxonAkwugo · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Application of S, Zn and FYM improved significantly the pro- ductivity of rice and succeeding maize crop.”

✓ located verbatim in the source · abstract, characters 839–944 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

NPK plus zinc and sulfur gave higher rice grain yield of 5.27 t/ha, though it was on par with NPK plus FYM in 2008-09.

Treatment
NPK + Zn + Se0
Outcome
grain yielde0
Direction
highere0
Value
5.27 t/hae0
Qualifier
on par with NPK + FYM in 2008-09e0
Comparator
NPK + FYMe0

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

“NPK + Zn + S recorded higher grain yield (5.27 t/ha) and yield attributes during both years of rice cultivation, except that it was on par with NPK + FYM in 2008-09.”

✓ located verbatim in the source · abstract, characters 982–1147 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

NPK plus zinc and sulfur gave higher rice yield attributes in both years, except parity with NPK plus FYM in 2008-09.

Treatment
NPK + Zn + Se0
Outcome
yield attributese0
Direction
highere0
Qualifier
on par with NPK + FYM in 2008-09e0
Comparator
NPK + FYMe0

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

“NPK + Zn + S recorded higher grain yield (5.27 t/ha) and yield attributes during both years of rice cultivation, except that it was on par with NPK + FYM in 2008-09.”

✓ located verbatim in the source · abstract, characters 982–1147 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nutrient uptake followed a similar trend to the higher yield with NPK plus zinc and sulfur.

Treatment
NPK + Zn + Se0
Outcome
uptake of nutrientse0
Qualifier
Similar trende0
Comparator
NPK + FYMe0

Not reportedDirection

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

“NPK + Zn + S recorded higher grain yield (5.27 t/ha) and yield attributes during both years of rice cultivation, except that it was on par with NPK + FYM in 2008-09. Similar trend was also observed in uptake of nutrients.”

✓ located verbatim in the source · abstract, characters 982–1203 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

NPK plus zinc and sulfur produced system productivity of 11.72 t/ha and exceeded other nutrient combinations.

Treatment
NPK + Zn + Se0
Outcome
systems productivitye0
Direction
excellede0
Value
11.72 t/hae0
Comparator
all other nutrient combina- tionse0

Not reportedTaxon

Verbatim

e0

“Based on the systems productivity (11.72 t/ha), net returns (58,983 Rs/ha), and BCR, NPK + Zn + S treatment excelled all other nutrient combina- tions.”

✓ located verbatim in the source · abstract, characters 1204–1355 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

NPK plus zinc and sulfur produced net returns of 58,983 Rs/ha and exceeded other nutrient combinations.

Treatment
NPK + Zn + Se0
Outcome
net returnse0
Direction
excellede0
Value
58,983 Rs/hae0
Comparator
all other nutrient combina- tionse0

Not reportedTaxon

Verbatim

e0

“Based on the systems productivity (11.72 t/ha), net returns (58,983 Rs/ha), and BCR, NPK + Zn + S treatment excelled all other nutrient combina- tions.”

✓ located verbatim in the source · abstract, characters 1204–1355 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

NPK plus zinc and sulfur excelled other nutrient combinations in benefit cost ratio.

Treatment
NPK + Zn + Se0
Outcome
BCRe0
Direction
excellede0
Comparator
all other nutrient combina- tionse0

Not reportedTaxon

Verbatim

e0

“Based on the systems productivity (11.72 t/ha), net returns (58,983 Rs/ha), and BCR, NPK + Zn + S treatment excelled all other nutrient combina- tions.”

✓ located verbatim in the source · abstract, characters 1204–1355 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SRI used 23% less water than conventional transplanting.

Treatment
SRI methode0
Outcome
watere0
Direction
lesse0
Value
23e0
Comparator
CTe0

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

“SRI method used 23 and 25% less water compared to CT and DS.”

✓ located verbatim in the source · abstract, characters 1356–1416 · show in text ↑
e1

“rice under SRI”

✓ located verbatim in the source · abstract, characters 576–590 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SRI used 25% less water than direct sowing.

Treatment
SRI methode0
Outcome
watere0
Direction
lesse0
Value
25%e0
Comparator
DSe0

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

“SRI method used 23 and 25% less water compared to CT and DS.”

✓ located verbatim in the source · abstract, characters 1356–1416 · show in text ↑
e1

“rice under SRI”

✓ located verbatim in the source · abstract, characters 576–590 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

NPK plus FYM applied to rice left significantly highest available soil nitrogen, phosphorus and potassium after harvest.

Treatment
NPK + FYMe0
Outcome
available soil N, P and K contente0
Direction
higheste0
Qualifier
after crop harveste0

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

e0

“NPK + FYM application to rice crop re- corded significantly highest quantity of available soil N, P and K content after crop harvest.”

✓ located verbatim in the source · abstract, characters 1417–1550 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Previous rice sulfur application gave the highest available soil sulfur.

Treatment
respective nutrients were appliede0
Outcome
soil Se0
Direction
higheste0

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

e0

“highest avail- able soil S and Zn content was recorded by the treatments where in respective nutrients were applied in the previ- ous season to rice.”

✓ located verbatim in the source · abstract, characters 1558–1707 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Previous rice zinc application gave the highest available soil zinc.

Treatment
respective nutrients were appliede0
Outcome
Zn contente0
Direction
higheste0

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

e0

“highest avail- able soil S and Zn content was recorded by the treatments where in respective nutrients were applied in the previ- ous season to rice.”

✓ located verbatim in the source · abstract, characters 1558–1707 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors conclude SRI rice maize is more productive and beneficial and uses water efficiently.

Outcome
SRI rice maize is more productive, beneficial and efficient water usere0

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

“Thus it is concluded that SRI rice maize is more productive, beneficial and efficient water user.”

✓ located verbatim in the source · abstract, characters 1708–1805 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors recommend applying both zinc and sulfur to rice to increase subsequent maize productivity.

Outcome
Both Zn and S be applied to rice to raise the productivity of subsequent maize tooe0

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

“Both Zn and S be applied to rice to raise the productivity of subsequent maize too.”

✓ located verbatim in the source · abstract, characters 1806–1889 · show in text ↑

zinc atom · organism · Oryza sativa (rice)Results differ

18 papers: 14 positive, 4 negative or no effect

13 papers in the same direction as this paper · 4 in the opposite direction

  1. no effect
  2. negative
  3. no effect

14 papers more in this group

See all 18 papers →

zinc atom · nutrient: content · Oryza sativa (rice)Results differ

276 papers: 254 positive, 22 negative or no effect

253 papers in the same direction as this paper · 21 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. negative
  3. no effect

272 papers more in this group

See all 276 papers →

zinc atom · yield · Oryza sativa (rice)Results differ

419 papers: 389 positive, 30 negative or no effect

388 papers in the same direction as this paper · 28 in the opposite direction · 2 reporting no difference from an alternative

  1. positive
  2. no effect
  3. negative

415 papers more in this group

See all 419 papers →

zinc atom · organism · Zea mays (maize)Positive and negative results

17 papers: 11 positive, 6 negative or no effect

10 papers in the same direction as this paper · 5 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

13 papers more in this group

See all 17 papers →

fertilization · organism · Zea mays (maize)Results differ

162 papers: 137 positive, 25 negative or no effect

136 papers in the same direction as this paper · 20 in the opposite direction · 5 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

158 papers more in this group

See all 162 papers →

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

135 papers: 113 positive, 22 negative or no effect

112 papers in the same direction as this paper · 19 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

131 papers more in this group

See all 135 papers →

fertilization · nutrient: content · Oryza sativa (rice)Positive and negative results

993 papers: 932 positive, 61 negative or no effect

931 papers in the same direction as this paper · 56 in the opposite direction · 5 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

989 papers more in this group

See all 993 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. positive
  2. positive
  3. negative

1,167 papers more in this group

See all 1,171 papers →

8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.