Paper · 2025 · Egyptian Journal of Agricultural Research

Responses of pea (Pisum sativum) to the application of sulfur and iron under new reclaimed land conditions

Saied El Sayed; Doaa M. Abo Basha; Hanan H. Abd Elkader; et al.

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claims
13
verbatim quotes
0
citations
2
research areas
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Open access · cc-by-nc-sa

Abstract

The study explored the influence of different rates of sulfur and iron application on pea plants (Pisum sativum). An experiment was carried out on the farm of the National Research Centre of Research and Production in Nubaria district, Behira Governorate (Egypt) during the consecutive winter seasons of 2019/2020 and 2020/2021. Sulfur micronized was applied in varying quantities (Zero, 40, 80 and 120 kg fed-1) during soil preparation, while chelated iron was sprayed on the plants at concentrations of Zero, 50, 100 and 150 ppm on days 30 and 45 after planting. The data collected revealed that both sulfur and iron application had significant positive effects on chlorophyll content, plant biomass production, yield, and Macronutrient, calcium (Ca) content as well as micronutrients in both shoots and pods. Moreover, the nutritional quality of the pods, expressed in terms of protein and carbohydrate content, showed a favorable response to these treatments. The interaction between the two nutrients (sulphur at 80 kg fed-1 with the foliar spray at 150 ppm Fe) also had a significant impact on the growth and production of the pea plants followed by the interaction between sulphur at 80 kg fed with the foliar spray at 100 ppm Fe . Specifically, the plants treated with sulfur and iron displayed higher chlorophyll content, suggesting a more efficient photosynthetic process. Furthermore, these plants exhibited greater biomass and a higher number and weight of pods compared to the control group. The effects of applying both nutrients appeared to be cumulative.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-sa. 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 resultpositivesignificant (as stated)measured

Claim · model-written summary

Sulfur and iron significantly increased pea chlorophyll content.

Taxon
pea plantsLathyrus oleraceuse0
Treatment
sulfur and iron applicatione1
Outcome
chlorophyll contente1
Direction
positivee1

Not reportedComparator

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

e0

“pea plants (Pisum sativum)”

✓ located verbatim in the source · abstract, characters 86–112 · show in text ↑
e1

“both sulfur and iron application had significant positive effects on chlorophyll content”

✓ located verbatim in the source · abstract, characters 598–686 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Sulfur and iron significantly improved pea biomass and yield.

Taxon
pea plantsLathyrus oleraceuse0
Treatment
sulfur and iron applicatione1
Outcome
plant biomass production, yielde1
Direction
positivee1

Not reportedComparator

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

e0

“pea plants (Pisum sativum)”

✓ located verbatim in the source · abstract, characters 86–112 · show in text ↑
e1

“both sulfur and iron application had significant positive effects on chlorophyll content, plant biomass production, yield”

✓ located verbatim in the source · abstract, characters 598–719 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Sulfur and iron significantly improved macro- and micronutrient content in pea shoots and pods.

Taxon
pea plantsLathyrus oleraceuse0
Organ / stage
shoots and podse1
Treatment
sulfur and iron applicatione1
Outcome
Macronutrient, calcium (Ca) content as well as micronutrientse1
Direction
positivee1

Not reportedComparator

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

e0

“pea plants (Pisum sativum)”

✓ located verbatim in the source · abstract, characters 86–112 · show in text ↑
e1

“both sulfur and iron application had significant positive effects on chlorophyll content, plant biomass production, yield, and Macronutrient, calcium (Ca) content as well as micronutrients in both shoots and pods”

✓ located verbatim in the source · abstract, characters 598–810 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfur and iron favorably affected pea pod protein and carbohydrate content.

Taxon
pea plantsLathyrus oleraceuse0
Treatment
these treatmentse1
Outcome
protein and carbohydrate contente1
Direction
favorablee1

Not reportedComparator

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

e0

“pea plants (Pisum sativum)”

✓ located verbatim in the source · abstract, characters 86–112 · show in text ↑
e1

“protein and carbohydrate content, showed a favorable response to these treatments”

✓ located verbatim in the source · abstract, characters 881–962 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The 80 kg fed-1 sulfur plus 150 ppm Fe foliar treatment significantly affected pea growth and production.

Taxon
pea plantsLathyrus oleraceuse1
Treatment
sulphur at 80 kg fed-1 with the foliar spray at 150 ppm Fee1
Outcome
growth and productione1

Not reportedComparatorDirection

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

e0

“pea plants (Pisum sativum)”

✓ located verbatim in the source · abstract, characters 86–112 · show in text ↑
e1

“sulphur at 80 kg fed-1 with the foliar spray at 150 ppm Fe) also had a significant impact on the growth and production of the pea plants”

✓ located verbatim in the source · abstract, characters 1007–1143 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The 80 kg fed sulfur plus 100 ppm Fe foliar treatment ranked after the 150 ppm Fe combination.

Outcome
interactione0

Not reportedTaxon

Verbatim

e0

“the interaction between sulphur at 80 kg fed with the foliar spray at 100 ppm Fe”

✓ located verbatim in the source · abstract, characters 1156–1236 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfur- and iron-treated pea had more pods and greater pod weight than controls.

Taxon
pea plantsLathyrus oleraceuse0
Treatment
these plantse1
Outcome
number and weight of podse1
Direction
highere1
Comparator
control groupe1

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

e0

“pea plants (Pisum sativum)”

✓ located verbatim in the source · abstract, characters 86–112 · show in text ↑
e1

“these plants exhibited greater biomass and a higher number and weight of pods compared to the control group”

✓ located verbatim in the source · abstract, characters 1396–1503 · show in text ↑

iron atom · physiology: pigments · Lathyrus oleraceus (pea)Results differ

9 papers: 8 positive, 1 negative or no effect

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

  1. negative
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

iron atom · molecular: metabolites · Lathyrus oleraceus (pea)Positive and negative results

5 papers: 3 positive, 2 negative or no effect

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

  1. negative
  2. negative
  3. positive

1 paper more in this group

See all 5 papers →

sulfur atom · molecular: metabolites · Lathyrus oleraceus (pea)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 →

sulfur atom · physiology: pigments · Lathyrus oleraceus (pea)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive
See all 4 papers →

iron atom · yield · Lathyrus oleraceus (pea)Results agree

11 papers: 11 positive, 0 negative or no effect

10 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

7 papers more in this group

See all 11 papers →

sulfur atom · yield · Lathyrus oleraceus (pea)Results agree

13 papers: 13 positive, 0 negative or no effect

12 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

9 papers more in this group

See all 13 papers →

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

83 papers: 79 positive, 4 negative or no effect

78 papers in the same direction as this paper · 4 in the opposite direction

  1. negative
  2. negative
  3. negative

79 papers more in this group

See all 83 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.