Paper · 2025 · International Journal of Research in Agronomy

Impact of different row spacing and nitrogen levels on growth and yield of transplanted rice (Oryza sativa L.)

Madanu Pavan Kalyan; Shilpa .; Makey Sri Chakra Naga Vardhan

8
claims
22
verbatim quotes
0
citations
1
research areas
✓
Open access

Abstract

The study investigated the effects of row spacing and nitrogen application on the growth and yield of transplanted rice (Oryza sativa L.) during the Kharif season of 2024. The experiment was conducted at the Experimental Farm, School of Agriculture, Lovely Professional University, Phagwara, Punjab, using a Split Plot Design with four row spacings (20 × 15 cm, 25 × 15 cm, 30 × 15 cm, 35 × 15 cm) and three nitrogen levels (25, 50, and 100 kg/ha). The results revealed significant effects of row spacing on plant height, fresh weight, dry weight, grain yield, and straw yield. Results indicated that the treatment combination of 30×15 cm spacing with 50 kg N/ha was the most effective, achieving maximum plant height (67.6 cm), fresh weight (803 g/m2), dry matter accumulation (393 g/ m2), grain yield (5167 kg/ha) and straw yield (14,234 kg/ha).The study highlights the importance of balancing row spacing and nitrogen application for improving rice productivity, particularly under subtropical monsoon climates, and suggests that a combination of wider spacing and moderate nitrogen application offers optimal results for sustainable rice cultivation.

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Claims 8

Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Row spacing had significant effects on rice plant height, fresh weight and dry weight.

Treatment
row spacinge2
Outcome
plant height, fresh weight, dry weighte2
Setting
Phagwara, Punjabe0

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

“Experimental Farm, School of Agriculture, Lovely Professional University, Phagwara, Punjab”

✓ located verbatim in the source · abstract, characters 208–298 · show in text ↑
e1

“transplanted rice (Oryza sativa L.)”

✓ located verbatim in the source · abstract, characters 102–137 · show in text ↑
e2

“The results revealed significant effects of row spacing on plant height, fresh weight, dry weight, grain yield, and straw yield”

✓ located verbatim in the source · abstract, characters 449–576 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Row spacing had significant effects on rice grain yield and straw yield.

Treatment
row spacinge2
Outcome
grain yield, and straw yielde2
Setting
Phagwara, Punjabe0

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

“Experimental Farm, School of Agriculture, Lovely Professional University, Phagwara, Punjab”

✓ located verbatim in the source · abstract, characters 208–298 · show in text ↑
e1

“transplanted rice (Oryza sativa L.)”

✓ located verbatim in the source · abstract, characters 102–137 · show in text ↑
e2

“The results revealed significant effects of row spacing on plant height, fresh weight, dry weight, grain yield, and straw yield”

✓ located verbatim in the source · abstract, characters 449–576 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 30×15 cm spacing with 50 kg N/ha gave the maximum rice plant height of 67.6 cm.

Treatment
30×15 cm spacing with 50 kg N/hae3
Outcome
plant heighte3
Direction
maximume3
Value
67.6 cme3
Setting
Phagwara, Punjabe0

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

“Experimental Farm, School of Agriculture, Lovely Professional University, Phagwara, Punjab”

✓ located verbatim in the source · abstract, characters 208–298 · show in text ↑
e1

“transplanted rice (Oryza sativa L.)”

✓ located verbatim in the source · abstract, characters 102–137 · show in text ↑
e3

“the treatment combination of 30×15 cm spacing with 50 kg N/ha was the most effective, achieving maximum plant height (67.6 cm), fresh weight (803 g/m2), dry matter accumulation (393 g/ m2), grain yield (5167 kg/ha) and straw yield (14,234 kg/ha)”

✓ located verbatim in the source · abstract, characters 601–846 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 30×15 cm spacing with 50 kg N/ha gave the maximum rice fresh weight of 803 g/m2.

Treatment
30×15 cm spacing with 50 kg N/hae3
Outcome
fresh weighte3
Direction
maximume3
Value
803 g/m2e3
Setting
Phagwara, Punjabe0

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

“Experimental Farm, School of Agriculture, Lovely Professional University, Phagwara, Punjab”

✓ located verbatim in the source · abstract, characters 208–298 · show in text ↑
e1

“transplanted rice (Oryza sativa L.)”

✓ located verbatim in the source · abstract, characters 102–137 · show in text ↑
e3

“the treatment combination of 30×15 cm spacing with 50 kg N/ha was the most effective, achieving maximum plant height (67.6 cm), fresh weight (803 g/m2), dry matter accumulation (393 g/ m2), grain yield (5167 kg/ha) and straw yield (14,234 kg/ha)”

✓ located verbatim in the source · abstract, characters 601–846 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 30×15 cm spacing with 50 kg N/ha gave the maximum rice dry matter accumulation of 393 g/m2.

Treatment
30×15 cm spacing with 50 kg N/hae3
Outcome
dry matter accumulatione3
Direction
maximume3
Value
393 g/ m2e3
Setting
Phagwara, Punjabe0

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

“Experimental Farm, School of Agriculture, Lovely Professional University, Phagwara, Punjab”

✓ located verbatim in the source · abstract, characters 208–298 · show in text ↑
e1

“transplanted rice (Oryza sativa L.)”

✓ located verbatim in the source · abstract, characters 102–137 · show in text ↑
e3

“the treatment combination of 30×15 cm spacing with 50 kg N/ha was the most effective, achieving maximum plant height (67.6 cm), fresh weight (803 g/m2), dry matter accumulation (393 g/ m2), grain yield (5167 kg/ha) and straw yield (14,234 kg/ha)”

✓ located verbatim in the source · abstract, characters 601–846 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 30×15 cm spacing with 50 kg N/ha gave the maximum rice grain yield of 5167 kg/ha.

Treatment
30×15 cm spacing with 50 kg N/hae3
Outcome
grain yielde3
Direction
maximume3
Value
5167 kg/hae3
Setting
Phagwara, Punjabe0

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

“Experimental Farm, School of Agriculture, Lovely Professional University, Phagwara, Punjab”

✓ located verbatim in the source · abstract, characters 208–298 · show in text ↑
e1

“transplanted rice (Oryza sativa L.)”

✓ located verbatim in the source · abstract, characters 102–137 · show in text ↑
e3

“the treatment combination of 30×15 cm spacing with 50 kg N/ha was the most effective, achieving maximum plant height (67.6 cm), fresh weight (803 g/m2), dry matter accumulation (393 g/ m2), grain yield (5167 kg/ha) and straw yield (14,234 kg/ha)”

✓ located verbatim in the source · abstract, characters 601–846 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 30×15 cm spacing with 50 kg N/ha gave the maximum rice straw yield of 14,234 kg/ha.

Treatment
30×15 cm spacing with 50 kg N/hae3
Outcome
straw yielde3
Direction
maximume3
Value
14,234 kg/hae3
Setting
Phagwara, Punjabe0

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

“Experimental Farm, School of Agriculture, Lovely Professional University, Phagwara, Punjab”

✓ located verbatim in the source · abstract, characters 208–298 · show in text ↑
e1

“transplanted rice (Oryza sativa L.)”

✓ located verbatim in the source · abstract, characters 102–137 · show in text ↑
e3

“the treatment combination of 30×15 cm spacing with 50 kg N/ha was the most effective, achieving maximum plant height (67.6 cm), fresh weight (803 g/m2), dry matter accumulation (393 g/ m2), grain yield (5167 kg/ha) and straw yield (14,234 kg/ha)”

✓ located verbatim in the source · abstract, characters 601–846 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

A combination of wider row spacing and moderate nitrogen is recommended for optimal results in sustainable rice cultivation.

Outcome
optimal results for sustainable rice cultivatione1

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

e1

“a combination of wider spacing and moderate nitrogen application offers optimal results for sustainable rice cultivation”

✓ located verbatim in the source · abstract, characters 1033–1153 · 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 →

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

395 papers: 330 positive, 65 negative or no effect

329 papers in the same direction as this paper · 58 in the opposite direction · 7 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. no effect

391 papers more in this group

See all 395 papers →

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

511 papers: 402 positive, 109 negative or no effect

401 papers in the same direction as this paper · 101 in the opposite direction · 8 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

507 papers more in this group

See all 511 papers →

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

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

1,802 papers in the same direction as this paper · 193 in the opposite direction · 49 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

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.