Paper · 2025 · Agrosains Jurnal Penelitian Agronomi

Pemberian Pupuk Nano NPK Organik Terhadap Hasil Bawang Merah

Endang Setyowati; Samanhudi Samanhudi; Muji Rahayu

5
claims
9
verbatim quotes
0
citations
1
research areas
✓
Open access · cc-by-sa

Abstract

The continuous use of chemical fertilizers can reduce nutrient absorption efficiency and contribute to gas emissions that trigger global warming. One solution to increase nutrient absorption efficiency is to use nano fertilizers. This study aims to evaluate the effect of organic NPK nano fertilizer application on shallot yield. The research was conducted using a completely randomized design (CRD) arranged in a factorial design, consisting of two treatment factors with 12 treatment combinations repeated three times. Fertilization of shallot plants by applying nano NPK fertilizers up to a dose of Nitrogen 220, Phosphorus 160, and Potassium 120 kg/ha can increase the growth variables of shallot plants. The best results were obtained in the Crok Kuning variety with nano fertilizer doses of Nitrogen 220, Phosphorus 160, Potassium 120 kg/ha, and the Tajuk variety with nano fertilizer doses of Nitrogen 160, Phosphorus 100, Potassium 60 kg/ha, which produced the optimal number of tubers. However, in both Crok Kuning and Tajuk varieties, the application of nano NPK fertilizers did not have a significant effect on plant fresh weight, leaf area index, specific leaf area, relative growth rate, tuber weight per plant, and tuber diameter. Further research can be conducted with the method of fertilizer application through the leaves and using different varieties.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-sa. Read at the source ↗

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Claims 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nano NPK fertilizer at up to 220, 160 and 120 kg/ha of N, P and K can increase shallot growth variables.

Treatment
nano NPK fertilizers up to a dose of Nitrogen 220, Phosphorus 160, and Potassium 120 kg/hae1
Outcome
growth variablese1
Direction
increasee1

Not reportedComparator

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

Allium cepa var. aggregatum
Allium cepa var. aggregatum · TaxonEvan-Amos · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“Fertilization of shallot plants by applying nano NPK fertilizers up to a dose of Nitrogen 220, Phosphorus 160, and Potassium 120 kg/ha can increase the growth variables of shallot plants”

✓ located verbatim in the source · abstract, characters 521–707 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In the Crok Kuning variety, nano fertilizer at N 220, P 160, K 120 kg/ha produced the optimal number of tubers.

Material
Crok Kuninge2
Organ / stage
tuberse2
Treatment
nano fertilizer doses of Nitrogen 220, Phosphorus 160, Potassium 120 kg/hae2
Outcome
optimal number of tuberse2
Direction
higherinferrede2

Not reportedComparator

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

Allium cepa var. aggregatum
Allium cepa var. aggregatum · TaxonEvan-Amos · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“Fertilization of shallot plants by applying nano NPK fertilizers up to a dose of Nitrogen 220, Phosphorus 160, and Potassium 120 kg/ha can increase the growth variables of shallot plants”

✓ located verbatim in the source · abstract, characters 521–707 · show in text ↑
e2

“The best results were obtained in the Crok Kuning variety with nano fertilizer doses of Nitrogen 220, Phosphorus 160, Potassium 120 kg/ha, and the Tajuk variety with nano fertilizer doses of Nitrogen 160, Phosphorus 100, Potassium 60 kg/ha, which produced the optimal number of tubers”

✓ located verbatim in the source · abstract, characters 709–993 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

In the Tajuk variety, nano fertilizer at N 160, P 100, K 60 kg/ha produced the optimal number of tubers.

Material
Tajuke2
Organ / stage
tuberse2
Treatment
nano fertilizer doses of Nitrogen 160, Phosphorus 100, Potassium 60 kg/hae2
Outcome
optimal number of tuberse2
Direction
higherinferrede2

Not reportedComparator

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

Allium cepa var. aggregatum
Allium cepa var. aggregatum · TaxonEvan-Amos · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“Fertilization of shallot plants by applying nano NPK fertilizers up to a dose of Nitrogen 220, Phosphorus 160, and Potassium 120 kg/ha can increase the growth variables of shallot plants”

✓ located verbatim in the source · abstract, characters 521–707 · show in text ↑
e2

“The best results were obtained in the Crok Kuning variety with nano fertilizer doses of Nitrogen 220, Phosphorus 160, Potassium 120 kg/ha, and the Tajuk variety with nano fertilizer doses of Nitrogen 160, Phosphorus 100, Potassium 60 kg/ha, which produced the optimal number of tubers”

✓ located verbatim in the source · abstract, characters 709–993 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

In both Crok Kuning and Tajuk, nano NPK fertilizer had no significant effect on plant fresh weight, leaf area index or specific leaf area.

Material
Crok Kuning and Tajuke2
Treatment
application of nano NPK fertilizerse2
Outcome
plant fresh weight, leaf area index, specific leaf areae2
Direction
did not have a significant effecte2

Not reportedComparator

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

Allium cepa var. aggregatum
Allium cepa var. aggregatum · TaxonEvan-Amos · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“Fertilization of shallot plants by applying nano NPK fertilizers up to a dose of Nitrogen 220, Phosphorus 160, and Potassium 120 kg/ha can increase the growth variables of shallot plants”

✓ located verbatim in the source · abstract, characters 521–707 · show in text ↑
e2

“However, in both Crok Kuning and Tajuk varieties, the application of nano NPK fertilizers did not have a significant effect on plant fresh weight, leaf area index, specific leaf area, relative growth rate, tuber weight per plant, and tuber diameter”

✓ located verbatim in the source · abstract, characters 995–1243 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

In both Crok Kuning and Tajuk, nano NPK fertilizer had no significant effect on relative growth rate, tuber weight per plant or tuber diameter.

Material
Crok Kuning and Tajuke2
Treatment
application of nano NPK fertilizerse2
Outcome
relative growth rate, tuber weight per plant, and tuber diametere2
Direction
did not have a significant effecte2

Not reportedComparator

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

Allium cepa var. aggregatum
Allium cepa var. aggregatum · TaxonEvan-Amos · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“Fertilization of shallot plants by applying nano NPK fertilizers up to a dose of Nitrogen 220, Phosphorus 160, and Potassium 120 kg/ha can increase the growth variables of shallot plants”

✓ located verbatim in the source · abstract, characters 521–707 · show in text ↑
e2

“However, in both Crok Kuning and Tajuk varieties, the application of nano NPK fertilizers did not have a significant effect on plant fresh weight, leaf area index, specific leaf area, relative growth rate, tuber weight per plant, and tuber diameter”

✓ located verbatim in the source · abstract, characters 995–1243 · show in text ↑

phosphorus · yield · Allium cepa (onion)Results differ

60 papers: 55 positive, 5 negative or no effect

54 papers in the same direction as this paper · 5 in the opposite direction

  1. negative
  2. no effect
  3. no effect

56 papers more in this group

See all 60 papers →

nitrogen · growth · Allium cepa (onion)Results differ

81 papers: 71 positive, 10 negative or no effect

70 papers in the same direction as this paper · 9 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

77 papers more in this group

See all 81 papers →

potassium · growth · Allium cepa (onion)Positive and negative results

26 papers: 25 positive, 1 negative or no effect

24 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive

22 papers more in this group

See all 26 papers →

nanoparticle · growth · Allium cepa (onion)Positive and negative results

30 papers: 28 positive, 2 negative or no effect

27 papers in the same direction as this paper · 2 in the opposite direction

  1. no effect
  2. negative
  3. positive

26 papers more in this group

See all 30 papers →

potassium · yield · Allium cepa (onion)Positive and negative results

59 papers: 54 positive, 5 negative or no effect

53 papers in the same direction as this paper · 5 in the opposite direction

  1. negative
  2. no effect
  3. no effect

55 papers more in this group

See all 59 papers →

nitrogen · yield · Allium cepa (onion)Positive and negative results

184 papers: 157 positive, 27 negative or no effect

156 papers in the same direction as this paper · 23 in the opposite direction · 4 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

180 papers more in this group

See all 184 papers →

fertilization · growth · Allium cepa (onion)Positive and negative results

294 papers: 251 positive, 43 negative or no effect

250 papers in the same direction as this paper · 40 in the opposite direction · 3 reporting no difference from an alternative

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

290 papers more in this group

See all 294 papers →

fertilization · yield · Allium cepa (onion)Positive and negative results

530 papers: 464 positive, 66 negative or no effect

463 papers in the same direction as this paper · 59 in the opposite direction · 7 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

526 papers more in this group

See all 530 papers →

8 of 10 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.