Paper · 2026 · International Journal of Plant & Soil Science

Effect of Split Application of Nitrogen and Potassium on Growth and Yield of Irrigated Wheat (Triticum aestivum L.)

Reena Hedau; Sheetal Gedam; Shivam Raygade; et al.

9
claims
22
verbatim quotes
0
citations
2
research areas
✓
Open access

Abstract

Wheat (Triticum aestivum L.) is one of the most important cereal crops globally and serves as a staple food for a substantial proportion of the world’s population. The study aims to evaluate the effect of split application of nitrogen and potassium on the growth and yield attributes of irrigated wheat. The experiment was conducted during the rabi season of 2024–25 at SAGE University, Bhopal following a Randomized Block Design with nine treatments and three replications. The treatments consisted of different levels and split applications of nitrogen and potassium, including 100% and 75% recommended dose of fertilizers (RDF: 80:40:40 kg N:P₂O₅:K₂O ha⁻¹), applied at basal, crown root initiation (CRI), and boot leaf stages. The results revealed that split application of nitrogen and potassium significantly enhanced growth parameters such as plant height, dry matter production, leaf area index (LAI), and number of tillers per meter row length at different growth stages, except at 30 DAS. Among the treatments, application of 100% RDF with nitrogen and potassium in three equal splits (33:33:33%) at basal, CRI, and boot leaf stages recorded significantly higher plant height (97.6 cm at harvest), dry matter production (96.40 g m⁻¹ row length at 90 DAS), LAI (3.36 at 90 DAS), and number of tillers (224.00 m⁻¹ row length at 60 DAS), and was found to be at par with other split treatments under 100% RDF. Yield attributes showed variable responses to split nutrient application. Grain weight per spike was significantly increased, with the highest value (1.78 g) recorded under 100% RDF with three equal splits of nitrogen and potassium, which was at par with 25:25:50% split application. However, the number of grains per spike and test weight did not show significant differences, although higher values were observed under the same treatment. The study concludes that split application of nitrogen and potassium, particularly in three equal splits (33:33:33%) at basal, CRI, and boot leaf stages under 100% RDF, is an effective nutrient management practice for enhancing growth and improving yield attributes of irrigated wheat. This approach ensures better nutrient use efficiency and can be recommended for sustainable wheat production under irrigated conditions.

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Claims 9

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Split application of nitrogen and potassium significantly enhanced growth parameters of wheat.

Taxon
Triticum aestivumTriticum aestivume0
Treatment
split application of nitrogen and potassiume1
Outcome
growth parameterse1
Direction
enhancede1
Qualifier
except at 30 DASe1
Setting
SAGE University, Bhopale2

Not reportedComparator

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

“Wheat (Triticum aestivum L.)”

✓ located verbatim in the source · abstract, characters 0–28 · show in text ↑
e1

“The results revealed that split application of nitrogen and potassium significantly enhanced growth parameters such as plant height, dry matter production, leaf area index (LAI), and number of tillers per meter row length at different growth stages, except at 30 DAS”

✓ located verbatim in the source · abstract, characters 730–996 · show in text ↑
e2

“at SAGE University, Bhopal”

✓ located verbatim in the source · abstract, characters 367–393 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The 100% RDF three-split treatment gave significantly higher plant height, 97.6 cm at harvest.

Taxon
Triticum aestivumTriticum aestivume0
Treatment
100% RDF with nitrogen and potassium in three equal splits (33:33:33%)e3
Outcome
plant heighte4
Direction
highere4
Value
97.6 cme4

Not reportedComparator

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

“Wheat (Triticum aestivum L.)”

✓ located verbatim in the source · abstract, characters 0–28 · show in text ↑
e3

“application of 100% RDF with nitrogen and potassium in three equal splits (33:33:33%) at basal, CRI, and boot leaf stages”

✓ located verbatim in the source · abstract, characters 1020–1141 · show in text ↑
e4

“recorded significantly higher plant height (97.6 cm at harvest)”

✓ located verbatim in the source · abstract, characters 1142–1205 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The 100% RDF three-split treatment gave higher dry matter production, 96.40 g m⁻¹ row length at 90 DAS.

Taxon
Triticum aestivumTriticum aestivume0
Treatment
100% RDF with nitrogen and potassium in three equal splits (33:33:33%)e3
Outcome
dry matter productione5
Direction
higherinferrede5
Value
96.40 g m⁻¹ row lengthe5

Not reportedComparator

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

“Wheat (Triticum aestivum L.)”

✓ located verbatim in the source · abstract, characters 0–28 · show in text ↑
e3

“application of 100% RDF with nitrogen and potassium in three equal splits (33:33:33%) at basal, CRI, and boot leaf stages”

✓ located verbatim in the source · abstract, characters 1020–1141 · show in text ↑
e5

“dry matter production (96.40 g m⁻¹ row length at 90 DAS)”

✓ located verbatim in the source · abstract, characters 1207–1263 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The 100% RDF three-split treatment gave higher leaf area index, 3.36 at 90 DAS.

Taxon
Triticum aestivumTriticum aestivume0
Treatment
100% RDF with nitrogen and potassium in three equal splits (33:33:33%)e3
Outcome
LAIe6
Direction
higherinferrede6
Value
3.36e6

Not reportedComparator

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

“Wheat (Triticum aestivum L.)”

✓ located verbatim in the source · abstract, characters 0–28 · show in text ↑
e3

“application of 100% RDF with nitrogen and potassium in three equal splits (33:33:33%) at basal, CRI, and boot leaf stages”

✓ located verbatim in the source · abstract, characters 1020–1141 · show in text ↑
e6

“LAI (3.36 at 90 DAS)”

✓ located verbatim in the source · abstract, characters 1265–1285 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The 100% RDF three-split treatment gave higher number of tillers, 224.00 m⁻¹ row length at 60 DAS.

Taxon
Triticum aestivumTriticum aestivume0
Treatment
100% RDF with nitrogen and potassium in three equal splits (33:33:33%)e3
Outcome
number of tillerse7
Direction
higherinferrede7
Value
224.00 m⁻¹ row lengthe7

Not reportedComparator

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

“Wheat (Triticum aestivum L.)”

✓ located verbatim in the source · abstract, characters 0–28 · show in text ↑
e3

“application of 100% RDF with nitrogen and potassium in three equal splits (33:33:33%) at basal, CRI, and boot leaf stages”

✓ located verbatim in the source · abstract, characters 1020–1141 · show in text ↑
e7

“number of tillers (224.00 m⁻¹ row length at 60 DAS)”

✓ located verbatim in the source · abstract, characters 1291–1342 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Grain weight per spike was significantly increased, with the highest value of 1.78 g under 100% RDF with three equal splits.

Taxon
Triticum aestivumTriticum aestivume0
Treatment
100% RDF with three equal splits of nitrogen and potassiume5
Outcome
Grain weight per spikee5
Direction
increasede5
Value
1.78 ge5

Not reportedComparator

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

“Wheat (Triticum aestivum L.)”

✓ located verbatim in the source · abstract, characters 0–28 · show in text ↑
e5

“Grain weight per spike was significantly increased, with the highest value (1.78 g) recorded under 100% RDF with three equal splits of nitrogen and potassium”

✓ located verbatim in the source · abstract, characters 1489–1646 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Number of grains per spike and test weight did not differ significantly among the nitrogen and potassium split treatments.

Taxon
Triticum aestivumTriticum aestivume0
Treatment
100% RDF with nitrogen and potassium in three equal splits (33:33:33%)e3
Outcome
number of grains per spike and test weighte6
Direction
did not show significant differencese6

Not reportedComparator

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

“Wheat (Triticum aestivum L.)”

✓ located verbatim in the source · abstract, characters 0–28 · show in text ↑
e3

“application of 100% RDF with nitrogen and potassium in three equal splits (33:33:33%) at basal, CRI, and boot leaf stages”

✓ located verbatim in the source · abstract, characters 1020–1141 · show in text ↑
e6

“the number of grains per spike and test weight did not show significant differences”

✓ located verbatim in the source · abstract, characters 1708–1791 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Three equal splits of nitrogen and potassium under 100% RDF is an effective nutrient management practice for irrigated wheat.

Taxon
irrigated wheatTriticum aestivume7
Outcome
enhancing growth and improving yield attributese7

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

e7

“is an effective nutrient management practice for enhancing growth and improving yield attributes of irrigated wheat”

✓ located verbatim in the source · abstract, characters 2025–2140 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The split nitrogen and potassium approach ensures better nutrient use efficiency in wheat.

Outcome
nutrient use efficiencye7

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

e7

“This approach ensures better nutrient use efficiency and can be recommended for sustainable wheat production under irrigated conditions”

✓ located verbatim in the source · abstract, characters 2142–2277 · show in text ↑

nitrogen · quality: grain · Triticum aestivum (wheat)Results differ

96 papers: 70 positive, 26 negative or no effect

25 papers in the same direction as this paper · 70 in the opposite direction

  1. positive
  2. positive
    Late soil nitrogen increased common wheat test weight by 1.4%.

    Late‐Season Nitrogen Increases Improver Common and Durum Wheat Quality · 2015 · compared with control without N fertilization after the vegetative growth stage

    Opposite direction

  3. positive

92 papers more in this group

See all 96 papers →

potassium · quality: grain · Triticum aestivum (wheat)Positive and negative results

8 papers: 7 positive, 1 negative or no effect

7 in the opposite direction

  1. positive
  2. positive
  3. positive

4 papers more in this group

See all 8 papers →

potassium · growth · Triticum aestivum (wheat)Positive and negative results

79 papers: 66 positive, 13 negative or no effect

65 papers in the same direction as this paper · 11 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

75 papers more in this group

See all 79 papers →

fertilization · quality: grain · Triticum aestivum (wheat)Positive and negative results

154 papers: 119 positive, 35 negative or no effect

34 papers in the same direction as this paper · 119 in the opposite direction

  1. positive
  2. positive
  3. positive

150 papers more in this group

See all 154 papers →

potassium · yield · Triticum aestivum (wheat)Positive and negative results

257 papers: 227 positive, 30 negative or no effect

226 papers in the same direction as this paper · 29 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

253 papers more in this group

See all 257 papers →

nitrogen · growth · Triticum aestivum (wheat)Positive and negative results

551 papers: 426 positive, 125 negative or no effect

425 papers in the same direction as this paper · 116 in the opposite direction · 9 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

547 papers more in this group

See all 551 papers →

fertilization · growth · Triticum aestivum (wheat)Positive and negative results

755 papers: 663 positive, 92 negative or no effect

662 papers in the same direction as this paper · 89 in the opposite direction · 3 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

751 papers more in this group

See all 755 papers →

nitrogen · yield · Triticum aestivum (wheat)Positive and negative results

2,061 papers: 1,737 positive, 324 negative or no effect

1,736 papers in the same direction as this paper · 285 in the opposite direction · 39 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

2,057 papers more in this group

See all 2,061 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.