Paper · 2025 · International Journal of Research in Agronomy

Impact of liquid nano urea fertilizer on soil properties after harvest of summer rice (Oryza sativa L.) under south Gujarat conditions

Chudasama Satish D; Usadadia VP; Patel UJ; et al.

7
claims
15
verbatim quotes
1
citations
2
research areas
✓
Open access

Abstract

An experiment was conducted during February to June in 2022 and 2023 at the College Farm, N. M. College of Agriculture, Navsari Agricultural University, Navsari, India, to evaluate the impact of liquid Nano urea fertilizer on soil properties of soil after harvest of summer rice under South Gujarat conditions. The experiment carried out with a randomized block design (RBD) with twelve nitrogen management treatments combining conventional urea and Nano urea through seedling root dips and foliar sprays. The experimental site had clayey soil, medium organic carbon, and varied nitrogen, phosphorus and potassium levels. Results showed no significant effect of nitrogen treatments on soil pH, electrical conductivity, organic carbon, bulk density, available P2O5 and K2O after harvest of summer rice. However, significantly higher available nitrogen was recorded with 100% RDN (120 kg N/ha) through urea (T1) in both years, but it remained at par with remaining treatments except T2, T3, T5 and T8. The lowest nitrogen was recorded in T12, involving Nano urea without full urea supplementation. The study indicates Nano urea can enhance traditional urea applications but cannot fully replace conventional urea for maintaining soil nitrogen and boosting rice productivity. Integrating Nano urea with conventional methods is essential for sustainable rice cultivation in South Gujarat.

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Claims 7

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Nitrogen treatments had no significant effect on soil pH, electrical conductivity or organic carbon after summer rice harvest.

Taxon
summer riceOryza sativae0
Treatment
nitrogen treatmentse0
Outcome
soil pH, electrical conductivity, organic carbone0
Direction
no significant effecte0

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

“summer rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 74–103 · show in text ↑
e0

“Results showed no significant effect of nitrogen treatments on soil pH, electrical conductivity, organic carbon, bulk density, available P2O5 and K2O after harvest of summer rice”

✓ located verbatim in the source · abstract, characters 622–800 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Nitrogen treatments had no significant effect on bulk density, available P2O5 or K2O after summer rice harvest.

Taxon
summer riceOryza sativae0
Treatment
nitrogen treatmentse0
Outcome
bulk density, available P2O5 and K2Oe0
Direction
no significant effecte0

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

“summer rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 74–103 · show in text ↑
e0

“Results showed no significant effect of nitrogen treatments on soil pH, electrical conductivity, organic carbon, bulk density, available P2O5 and K2O after harvest of summer rice”

✓ located verbatim in the source · abstract, characters 622–800 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Available nitrogen was significantly higher with 100% RDN (120 kg N/ha) as urea (T1) in both years.

Taxon
summer riceOryza sativat0
Treatment
100% RDN (120 kg N/ha) through urea (T1)e1
Outcome
available nitrogene1
Direction
highere1

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

“summer rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 74–103 · show in text ↑
e1

“significantly higher available nitrogen was recorded with 100% RDN (120 kg N/ha) through urea (T1) in both years”

✓ located verbatim in the source · abstract, characters 811–923 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Available nitrogen with 100% RDN urea (T1) remained at par with the remaining treatments except T2, T3, T5 and T8.

Taxon
summer riceOryza sativat0
Treatment
100% RDN (120 kg N/ha) through urea (T1)e1
Outcome
available nitrogene1
Direction
at pare2
Comparator
remaining treatments except T2, T3, T5 and T8e2

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

“summer rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 74–103 · show in text ↑
e1

“significantly higher available nitrogen was recorded with 100% RDN (120 kg N/ha) through urea (T1) in both years”

✓ located verbatim in the source · abstract, characters 811–923 · show in text ↑
e2

“but it remained at par with remaining treatments except T2, T3, T5 and T8”

✓ located verbatim in the source · abstract, characters 925–998 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

The lowest nitrogen was recorded with nano urea without full urea supplementation (T12).

Taxon
summer riceOryza sativat0
Treatment
Nano urea without full urea supplementatione3
Outcome
nitrogene3
Direction
loweste3

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

“summer rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 74–103 · show in text ↑
e3

“The lowest nitrogen was recorded in T12, involving Nano urea without full urea supplementation”

✓ located verbatim in the source · abstract, characters 1000–1094 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Nano urea can enhance traditional urea applications but cannot fully replace conventional urea for maintaining soil nitrogen and boosting rice productivity.

Outcome
maintaining soil nitrogen and boosting rice productivitye4

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

“summer rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 74–103 · show in text ↑
e4

“The study indicates Nano urea can enhance traditional urea applications but cannot fully replace conventional urea for maintaining soil nitrogen and boosting rice productivity”

✓ located verbatim in the source · abstract, characters 1096–1271 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

Integrating nano urea with conventional methods is essential for sustainable rice cultivation in South Gujarat.

Outcome
sustainable rice cultivatione5
Setting
South Gujarate5

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

“summer rice (Oryza sativa L.)”

✓ located verbatim in the source · title, characters 74–103 · show in text ↑
e5

“Integrating Nano urea with conventional methods is essential for sustainable rice cultivation in South Gujarat”

✓ located verbatim in the source · abstract, characters 1273–1383 · show in text ↑

nitrogen · soil: physics · Oryza sativa (rice)Positive and negative results

12 papers: 10 positive, 2 negative or no effect

1 paper in the same direction as this paper · 10 in the opposite direction

  1. positive
  2. positive
  3. positive

8 papers more in this group

See all 12 papers →

nitrogen · soil: chemistry · Oryza sativa (rice)Positive and negative results

45 papers: 37 positive, 8 negative or no effect

7 papers in the same direction as this paper · 37 in the opposite direction

  1. positive
  2. positive
  3. positive

41 papers more in this group

See all 45 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.