Paper · 1999 · The Indian Journal of Agricultural Sciences

Efficiency of coated-urea materials in rice (Oryza sativa) - wheat (Triticum aestivum) system under partially reclaimed sodic soil

R P S Chauhan

11
claims
14
verbatim quotes
0
citations
2
research areas
✓
Open access

Abstract

In a field experiment in partially reclaimed sadic soil different coated-urea materials, viz gypsum-coated urea, coal tar-coated urea, sulphur-coated urea at 3 levels of N, viz 40,80 and 120 kg/ha were compared with the prilled urea under rice (Oryza sativa L.) - wheat (Triticum aestivum L. emend. Fiori & Paol.) cropping system. Among coated-urea materials neem cake-coated urea and sulphur-coated urea were at par and significantly superior to the prilled urea with respect to the yield, yield attributes and N uptake and its recovery in rice-wheat system. However. maximum values of all these parameters were recorded with neem cake-coated urea. Grain yield of both the crops at 80 kg.N/ha as neem cake-coated urea and sulphur-coated urea were at par with those obtained with prilled urea at 120 kg N/ha. Average recovery of applied N with neem cake-coated urea was 32.1 and 37.5% in rice and wheat crops as against 20.5 and 27.1 % with prilled urea respectively. Neem cake-coated urea followed by sulphur-coated urea also maintained higher concentrations of NH 4'-N in soil under rice and NH 4'-N and N0 3'-N under wheat than prilled urea throughout the crop growth.

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Claims 11

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

neem cake-coated urea was significantly superior to prilled urea for yield, yield attributes, N uptake and recovery.

Taxon
rice-wheate0
Treatment
neem cake-coated ureae0
Outcome
yield, yield attributes and N uptake and its recoverye0
Direction
superiore0
Comparator
prilled ureae0

Verbatim

e0

“Among coated-urea materials neem cake-coated urea and sulphur-coated urea were at par and significantly superior to the prilled urea with respect to the yield, yield attributes and N uptake and its recovery in rice-wheat system.”

✓ located verbatim in the source · abstract, characters 331–559 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

sulphur-coated urea was significantly superior to prilled urea for yield, yield attributes, N uptake and recovery.

Taxon
rice-wheate0
Treatment
sulphur-coated ureae0
Outcome
yield, yield attributes and N uptake and its recoverye0
Direction
superiore0
Comparator
prilled ureae0

Verbatim

e0

“Among coated-urea materials neem cake-coated urea and sulphur-coated urea were at par and significantly superior to the prilled urea with respect to the yield, yield attributes and N uptake and its recovery in rice-wheat system.”

✓ located verbatim in the source · abstract, characters 331–559 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Neem cake-coated urea gave maximum values of these parameters.

Taxon
rice (Oryza sativa) - wheat (Triticum aestivum)Oryza sativat0
Treatment
neem cake-coated ureae0
Outcome
maximum valuese0
Direction
maximume0

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

“However. maximum values of all these parameters were recorded with neem cake-coated urea.”

✓ located verbatim in the source · abstract, characters 560–649 · show in text ↑
t0

“rice (Oryza sativa) - wheat (Triticum aestivum)”

✓ located verbatim in the source · title, characters 39–86 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

At 80 kg.N/ha, neem cake-coated urea gave grain yields at par with prilled urea at 120 kg N/ha.

Taxon
rice (Oryza sativa) - wheat (Triticum aestivum)Oryza sativat0
Treatment
neem cake-coated ureae0
Outcome
Grain yielde0
Direction
at pare0
Value
80 kg.N/hae0
Comparator
prilled urea at 120 kg N/hae0

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

“Grain yield of both the crops at 80 kg.N/ha as neem cake-coated urea and sulphur-coated urea were at par with those obtained with prilled urea at 120 kg N/ha.”

✓ located verbatim in the source · abstract, characters 650–808 · show in text ↑
t0

“rice (Oryza sativa) - wheat (Triticum aestivum)”

✓ located verbatim in the source · title, characters 39–86 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

At 80 kg.N/ha, sulphur-coated urea gave grain yields at par with prilled urea at 120 kg N/ha.

Taxon
rice (Oryza sativa) - wheat (Triticum aestivum)Oryza sativat0
Treatment
sulphur-coated ureae0
Outcome
Grain yielde0
Direction
at pare0
Value
80 kg.N/hae0
Comparator
prilled urea at 120 kg N/hae0

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

“Grain yield of both the crops at 80 kg.N/ha as neem cake-coated urea and sulphur-coated urea were at par with those obtained with prilled urea at 120 kg N/ha.”

✓ located verbatim in the source · abstract, characters 650–808 · show in text ↑
t0

“rice (Oryza sativa) - wheat (Triticum aestivum)”

✓ located verbatim in the source · title, characters 39–86 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Applied N recovery under neem cake-coated urea was 32.1 in rice versus 20.5 with prilled urea.

Treatment
neem cake-coated ureae0
Outcome
recovery of applied Ne0
Direction
higherinferrede0
Value
32.1e0
Qualifier
20.5e0
Comparator
prilled ureae0

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

“Average recovery of applied N with neem cake-coated urea was 32.1 and 37.5% in rice and wheat crops as against 20.5 and 27.1 % with prilled urea respectively.”

✓ located verbatim in the source · abstract, characters 809–967 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Applied N recovery under neem cake-coated urea was 37.5% in wheat versus 27.1 % with prilled urea.

Treatment
neem cake-coated ureae0
Outcome
recovery of applied Ne0
Direction
higherinferrede0
Value
37.5%e0
Qualifier
27.1 %e0
Comparator
prilled ureae0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Average recovery of applied N with neem cake-coated urea was 32.1 and 37.5% in rice and wheat crops as against 20.5 and 27.1 % with prilled urea respectively.”

✓ located verbatim in the source · abstract, characters 809–967 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Neem cake-coated urea maintained higher NH 4'-N in soil under rice than prilled urea.

Treatment
Neem cake-coated ureae0
Outcome
NH 4'-N in soile0
Direction
highere0
Comparator
prilled ureae0

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

“Neem cake-coated urea followed by sulphur-coated urea also maintained higher concentrations of NH 4'-N in soil under rice and NH 4'-N and N0 3'-N under wheat than prilled urea throughout the crop growth.”

✓ located verbatim in the source · abstract, characters 968–1171 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Neem cake-coated urea maintained higher NH 4'-N and N0 3'-N under wheat than prilled urea.

Treatment
Neem cake-coated ureae0
Outcome
NH 4'-N and N0 3'-Ne0
Direction
highere0
Comparator
prilled ureae0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Neem cake-coated urea followed by sulphur-coated urea also maintained higher concentrations of NH 4'-N in soil under rice and NH 4'-N and N0 3'-N under wheat than prilled urea throughout the crop growth.”

✓ located verbatim in the source · abstract, characters 968–1171 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

sulphur-coated urea maintained higher NH 4'-N in soil under rice than prilled urea.

Treatment
sulphur-coated ureae0
Outcome
NH 4'-N in soile0
Direction
highere0
Comparator
prilled ureae0

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

“Neem cake-coated urea followed by sulphur-coated urea also maintained higher concentrations of NH 4'-N in soil under rice and NH 4'-N and N0 3'-N under wheat than prilled urea throughout the crop growth.”

✓ located verbatim in the source · abstract, characters 968–1171 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

sulphur-coated urea maintained higher NH 4'-N and N0 3'-N under wheat than prilled urea.

Treatment
sulphur-coated ureae0
Outcome
NH 4'-N and N0 3'-Ne0
Direction
highere0
Comparator
prilled ureae0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Neem cake-coated urea followed by sulphur-coated urea also maintained higher concentrations of NH 4'-N in soil under rice and NH 4'-N and N0 3'-N under wheat than prilled urea throughout the crop growth.”

✓ located verbatim in the source · abstract, characters 968–1171 · show in text ↑

botanical · yield · Oryza sativa (rice)Results differ

208 papers: 193 positive, 15 negative or no effect

14 papers in the same direction as this paper · 193 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

204 papers more in this group

See all 208 papers →

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

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

241 papers in the same direction as this paper · 1,803 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

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.