Paper · 2025 · Assiut Journal of Agricultural Sciences/Assuit Journal of Agricultural Sciences

Rationalization of Irrigation Water Using Potassium and Foliar Spraying with Salicylic Acid of Soybean

Mahmoud A. Ayoub; Elmahdy A. Teama; El-Saady A. Ali; et al.

4
claims
9
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

A field experiment was carried out during 2023 and 2024 seasons at the Agricultural Research Station Experimental Farm in Shandaweel Island, Sohag Governorate to study the effect of spraying soybean (Var. Giza-111) with different concentrations of salicylic acid (SA) and potassium sulphate under different levels of water stress on some vegetative and crop yield characteristics. The experiment was laid out in randomized complete block design (RCBD) using strip plot arrangement within split with three replicates. Three irrigation water amounts (2400, 2000 and 1800 m3/fed/season) were distributed vertically while the four SA concentrations (control, 25, 75, and 100 ppm) were allocated horizontally and, potassium sulphate rate (control, 48 and 72 kg/fed,) as soil applications were arranged in sub plot. The results showed that adding potassium at a rate of 72 kg per fed and spraying soybeans at a rate of 100 ppm had a significant effect on the growth (plant height and number of branches/plant) and soybean productivity (number of pods/plant, weight of 100 seeds, weight of seeds/plant and seed yield/fed). The interaction results showed that adding potassium at a rate of 72 kg /fed. and spraying salicylic acid at a rate of 100 ppm saved the amount of irrigation water from 2400 m3 to 1800 m3.

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Claims 4

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Potassium at 72 kg per fed together with salicylic acid at 100 ppm significantly affected soybean growth (plant height and number of branches per plant).

Taxon
soybeanGlycine maxe3
Treatment
adding potassium at a rate of 72 kg per fed and spraying soybeans at a rate of 100 ppme1
Outcome
plant height and number of branches/plante2

Not reportedComparatorDirection

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e1

“adding potassium at a rate of 72 kg per fed and spraying soybeans at a rate of 100 ppm”

✓ located verbatim in the source · abstract, characters 834–920 · show in text ↑
e2

“growth (plant height and number of branches/plant)”

✓ located verbatim in the source · abstract, characters 953–1003 · show in text ↑
e3

“spraying soybeans”

✓ located verbatim in the source · abstract, characters 882–899 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Potassium at 72 kg per fed together with salicylic acid at 100 ppm significantly affected soybean number of pods per plant, weight of 100 seeds and weight of seeds per plant.

Taxon
soybeanGlycine maxe2
Treatment
adding potassium at a rate of 72 kg per fed and spraying soybeans at a rate of 100 ppme1
Outcome
number of pods/plant, weight of 100 seeds, weight of seeds/plante2

Not reportedComparatorDirection

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e1

“adding potassium at a rate of 72 kg per fed and spraying soybeans at a rate of 100 ppm”

✓ located verbatim in the source · abstract, characters 834–920 · show in text ↑
e2

“soybean productivity (number of pods/plant, weight of 100 seeds, weight of seeds/plant”

✓ located verbatim in the source · abstract, characters 1008–1094 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Potassium at 72 kg per fed together with salicylic acid at 100 ppm significantly affected soybean seed yield per feddan.

Taxon
soybeanGlycine maxe2
Treatment
adding potassium at a rate of 72 kg per fed and spraying soybeans at a rate of 100 ppme1
Outcome
seed yield/fede2

Not reportedComparatorDirection

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e1

“adding potassium at a rate of 72 kg per fed and spraying soybeans at a rate of 100 ppm”

✓ located verbatim in the source · abstract, characters 834–920 · show in text ↑
e2

“soybean productivity (number of pods/plant, weight of 100 seeds, weight of seeds/plant and seed yield/fed)”

✓ located verbatim in the source · abstract, characters 1008–1114 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The interaction of potassium at 72 kg per fed and salicylic acid at 100 ppm saved irrigation water, reducing the amount from 2400 to 1800 m3.

Taxon
SoybeanGlycine maxt0
Treatment
adding potassium at a rate of 72 kg /fed. and spraying salicylic acid at a rate of 100 ppme1
Outcome
amount of irrigation watere1
Direction
savede1
Value
from 2400 m3 to 1800 m3e1

Not reportedComparator

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

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e1

“adding potassium at a rate of 72 kg /fed. and spraying salicylic acid at a rate of 100 ppm saved the amount of irrigation water from 2400 m3 to 1800 m3”

✓ located verbatim in the source · abstract, characters 1152–1303 · show in text ↑
t0

“Soybean”

✓ located verbatim in the source · title, characters 95–102 · show in text ↑

salicylic acid · physiology: water · Glycine max (soybean)Results agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

potassium · yield · Glycine max (soybean)Results differ

149 papers: 123 positive, 26 negative or no effect

122 papers in the same direction as this paper · 25 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

145 papers more in this group

See all 149 papers →

application · yield · Glycine max (soybean)Positive and negative results

404 papers: 332 positive, 72 negative or no effect

331 papers in the same direction as this paper · 66 in the opposite direction · 6 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

400 papers more in this group

See all 404 papers →

potassium · physiology: water · Glycine max (soybean)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

application · physiology: water · Glycine max (soybean)Results agree

18 papers: 18 positive, 0 negative or no effect

17 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

14 papers more in this group

See all 18 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.