Paper · 2025 · International Journal of Environment Agriculture and Biotechnology

Comparison between amino acids and chemical fertilizers in terms of their effect on growth and yield traits of peas (Pisum sativum L.)

Sarah Mohammed Ali Al-Jubouri; Wadhah Thabit Abed Al-Dahi Wadhah Thabit Abed Al-Dahi; Assad Ibrahim Alhayali; et al.

7
claims
33
verbatim quotes
0
citations
2
research areas
✓
Open access · cc-by

Abstract

A field experiment was conducted during the 2024-2025 agricultural season in the fields of the Department of Plant Production Techniques/Agricultural Technical College/ Northern Technical University. experiment was conducted using a complete randomized block design, with 12 experimental units. the experiment included one factor: four levels of fertilizer (no fertilizer for comparison purposes, N.P.K chemical fertilizer, organic fertilizer with amino acids, and a treatment mixing chemical fertilizer and amino acids). plants were sprayed twice, the first time at the 3-5 true leaf stage, and the second time 15 days after the first spray. results showed that the mixed treatment was superior to the other treatments in all traits, plant height, number of branches per plant, pod length, number of seeds per pod, weight of 100 seeds, and seed yield kg. dunum-1 and biological yield kg. dunum-1, which reached values of 88.45 cm 7, 12.78 cm, 11, 17.89 g, 387.50 kg. dunum-1 and 83625 kg. dunum-1, respectively.

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

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The mixed chemical fertilizer and amino acid treatment gave a higher plant height than the other treatments in a field experiment, at 88.45 cm.

Treatment
a treatment mixing chemical fertilizer and amino acidse1
Outcome
plant heighte2
Direction
superiore2
Value
88.45 cme3
Comparator
the other treatmentse2
Setting
fielde0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

t0

“peas (Pisum sativum L.)”

✓ located verbatim in the source · title, characters 111–134 · show in text ↑
e0

“A field experiment was conducted during the 2024-2025 agricultural season”

✓ located verbatim in the source · abstract, characters 0–73 · show in text ↑
e1

“a treatment mixing chemical fertilizer and amino acids”

✓ located verbatim in the source · abstract, characters 465–519 · show in text ↑
e2

“the mixed treatment was superior to the other treatments in all traits, plant height, number of branches per plant, pod length, number of seeds per pod, weight of 100 seeds, and seed yield kg. dunum-1 and biological yield kg. dunum-1”

✓ located verbatim in the source · abstract, characters 663–896 · show in text ↑
e3

“88.45 cm 7”

✓ located verbatim in the source · abstract, characters 922–932 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The mixed treatment gave a longer pod than the other treatments in a field experiment, at 12.78 cm.

Treatment
a treatment mixing chemical fertilizer and amino acidse1
Outcome
pod lengthe2
Direction
superiore2
Value
12.78 cme4
Comparator
the other treatmentse2
Setting
fielde0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

t0

“peas (Pisum sativum L.)”

✓ located verbatim in the source · title, characters 111–134 · show in text ↑
e0

“A field experiment was conducted during the 2024-2025 agricultural season”

✓ located verbatim in the source · abstract, characters 0–73 · show in text ↑
e1

“a treatment mixing chemical fertilizer and amino acids”

✓ located verbatim in the source · abstract, characters 465–519 · show in text ↑
e2

“the mixed treatment was superior to the other treatments in all traits, plant height, number of branches per plant, pod length, number of seeds per pod, weight of 100 seeds, and seed yield kg. dunum-1 and biological yield kg. dunum-1”

✓ located verbatim in the source · abstract, characters 663–896 · show in text ↑
e4

“12.78 cm”

✓ located verbatim in the source · abstract, characters 934–942 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The mixed treatment gave a higher 100-seed weight than the other treatments in a field experiment, at 17.89 g.

Treatment
a treatment mixing chemical fertilizer and amino acidse1
Outcome
weight of 100 seedse2
Direction
superiore2
Value
17.89 ge5
Comparator
the other treatmentse2
Setting
fielde0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

t0

“peas (Pisum sativum L.)”

✓ located verbatim in the source · title, characters 111–134 · show in text ↑
e0

“A field experiment was conducted during the 2024-2025 agricultural season”

✓ located verbatim in the source · abstract, characters 0–73 · show in text ↑
e1

“a treatment mixing chemical fertilizer and amino acids”

✓ located verbatim in the source · abstract, characters 465–519 · show in text ↑
e2

“the mixed treatment was superior to the other treatments in all traits, plant height, number of branches per plant, pod length, number of seeds per pod, weight of 100 seeds, and seed yield kg. dunum-1 and biological yield kg. dunum-1”

✓ located verbatim in the source · abstract, characters 663–896 · show in text ↑
e5

“17.89 g”

✓ located verbatim in the source · abstract, characters 948–955 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The mixed treatment gave a higher seed yield than the other treatments in a field experiment, at 387.50 kg per dunum.

Treatment
a treatment mixing chemical fertilizer and amino acidse1
Outcome
seed yielde2
Direction
superiore2
Value
387.50 kg. dunum-1e6
Comparator
the other treatmentse2
Setting
fielde0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

t0

“peas (Pisum sativum L.)”

✓ located verbatim in the source · title, characters 111–134 · show in text ↑
e0

“A field experiment was conducted during the 2024-2025 agricultural season”

✓ located verbatim in the source · abstract, characters 0–73 · show in text ↑
e1

“a treatment mixing chemical fertilizer and amino acids”

✓ located verbatim in the source · abstract, characters 465–519 · show in text ↑
e2

“the mixed treatment was superior to the other treatments in all traits, plant height, number of branches per plant, pod length, number of seeds per pod, weight of 100 seeds, and seed yield kg. dunum-1 and biological yield kg. dunum-1”

✓ located verbatim in the source · abstract, characters 663–896 · show in text ↑
e6

“387.50 kg. dunum-1”

✓ located verbatim in the source · abstract, characters 957–975 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The mixed treatment gave a higher biological yield than the other treatments in a field experiment, at 83625 kg per dunum.

Treatment
a treatment mixing chemical fertilizer and amino acidse1
Outcome
biological yielde2
Direction
superiore2
Value
83625 kg. dunum-1e7
Comparator
the other treatmentse2
Setting
fielde0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

t0

“peas (Pisum sativum L.)”

✓ located verbatim in the source · title, characters 111–134 · show in text ↑
e0

“A field experiment was conducted during the 2024-2025 agricultural season”

✓ located verbatim in the source · abstract, characters 0–73 · show in text ↑
e1

“a treatment mixing chemical fertilizer and amino acids”

✓ located verbatim in the source · abstract, characters 465–519 · show in text ↑
e2

“the mixed treatment was superior to the other treatments in all traits, plant height, number of branches per plant, pod length, number of seeds per pod, weight of 100 seeds, and seed yield kg. dunum-1 and biological yield kg. dunum-1”

✓ located verbatim in the source · abstract, characters 663–896 · show in text ↑
e7

“83625 kg. dunum-1”

✓ located verbatim in the source · abstract, characters 980–997 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The mixed treatment gave more branches per plant than the other treatments in a field experiment.

Treatment
a treatment mixing chemical fertilizer and amino acidse1
Outcome
number of branches per plante2
Direction
superiore2
Comparator
the other treatmentse2
Setting
fielde0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

t0

“peas (Pisum sativum L.)”

✓ located verbatim in the source · title, characters 111–134 · show in text ↑
e0

“A field experiment was conducted during the 2024-2025 agricultural season”

✓ located verbatim in the source · abstract, characters 0–73 · show in text ↑
e1

“a treatment mixing chemical fertilizer and amino acids”

✓ located verbatim in the source · abstract, characters 465–519 · show in text ↑
e2

“the mixed treatment was superior to the other treatments in all traits, plant height, number of branches per plant, pod length, number of seeds per pod, weight of 100 seeds, and seed yield kg. dunum-1 and biological yield kg. dunum-1”

✓ located verbatim in the source · abstract, characters 663–896 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The mixed treatment gave more seeds per pod than the other treatments in a field experiment.

Treatment
a treatment mixing chemical fertilizer and amino acidse1
Outcome
number of seeds per pode2
Direction
superiore2
Comparator
the other treatmentse2
Setting
fielde0

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

t0

“peas (Pisum sativum L.)”

✓ located verbatim in the source · title, characters 111–134 · show in text ↑
e0

“A field experiment was conducted during the 2024-2025 agricultural season”

✓ located verbatim in the source · abstract, characters 0–73 · show in text ↑
e1

“a treatment mixing chemical fertilizer and amino acids”

✓ located verbatim in the source · abstract, characters 465–519 · show in text ↑
e2

“the mixed treatment was superior to the other treatments in all traits, plant height, number of branches per plant, pod length, number of seeds per pod, weight of 100 seeds, and seed yield kg. dunum-1 and biological yield kg. dunum-1”

✓ located verbatim in the source · abstract, characters 663–896 · show in text ↑

fertilization · growth · Lathyrus oleraceus (pea)Positive and negative results

97 papers: 86 positive, 11 negative or no effect

85 papers in the same direction as this paper · 11 in the opposite direction

  1. no effect
  2. negative
  3. negative

93 papers more in this group

See all 97 papers →

fertilization · yield · Lathyrus oleraceus (pea)Positive and negative results

240 papers: 216 positive, 24 negative or no effect

215 papers in the same direction as this paper · 23 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

236 papers more in this group

See all 240 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.