Paper · 2013 · African Journal of Agricultural Research

Influence of soil and foliar applications of potassium fertilization on growth, yield and fiber quality traits in two Gossypium barbadense L. varieties

D H Dewdar M; M Rady M

7
claims
12
verbatim quotes
18
citations
1
research areas
✓
Open access · cc-by

Abstract

Two field experiments were conducted at the experimental farm of the Faculty of Agriculture at Fayoum, Egypt, to study the effect of soil and foliar applications of potassium in the form of potassium sulphate. The treated cotton plants with potassium soil application and with foliar spray improved all the studied growth traits, that is, number of leaf per plant, the total leaf area per plant (dm-2) and the dry weight of leaf per plant (g). The best results were found when cotton plants were treated with soil application plus K foliar spray twice, each at early boll formation and peak boll formation stage as compared to the control treatment. Moreover, this treatment also produced significantly higher yield with improved growth and fiber traits. The interaction between varieties and potassium fertilizer treatments had a significant effect on growth, cotton yield and fiber quality, whereas the Giza-90 variety x soil and foliar application (2 times) of potassium out of the interactions proved to have the best results. Key words: Cotton varieties, foliar potassium application, fiber quality, Nitrogen, Phosphorous, and Potassium (NPK).

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

Soil potassium application improved cotton leaf number, area and dry weight.

Taxon
cotton plantsGossypium hirsutume0
Treatment
potassium soil applicatione0
Outcome
number of leaf per plant, the total leaf area per plant (dm-2) and the dry weight of leaf per plant (g)e0
Direction
improvede0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The treated cotton plants with potassium soil application and with foliar spray improved all the studied growth traits, that is, number of leaf per plant, the total leaf area per plant (dm-2) and the dry weight of leaf per plant (g)”

✓ located verbatim in the source · abstract, characters 210–442 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar potassium spray improved cotton leaf number, area and dry weight.

Taxon
cotton plantsGossypium hirsutume0
Treatment
foliar spraye0
Outcome
number of leaf per plant, the total leaf area per plant (dm-2) and the dry weight of leaf per plant (g)e0
Direction
improvede0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The treated cotton plants with potassium soil application and with foliar spray improved all the studied growth traits, that is, number of leaf per plant, the total leaf area per plant (dm-2) and the dry weight of leaf per plant (g)”

✓ located verbatim in the source · abstract, characters 210–442 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Soil potassium plus two foliar sprays at boll stages gave the best growth results relative to controls.

Taxon
cotton plantsGossypium hirsutume0
Organ / stage
early boll formation and peak boll formation stagee0
Treatment
soil application plus K foliar spray twicee0
Outcome
best resultse0
Direction
beste0
Comparator
control treatmente0

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The best results were found when cotton plants were treated with soil application plus K foliar spray twice, each at early boll formation and peak boll formation stage as compared to the control treatment”

✓ located verbatim in the source · abstract, characters 444–648 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

The combined potassium treatment produced significantly higher cotton yield.

Taxon
Gossypium barbadense L.Gossypium barbadenset0
Treatment
soil application plus K foliar spray twicee1
Outcome
yielde0
Direction
highere0

Not reportedComparator

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

Gossypium barbadense
Gossypium barbadense · TaxonForest and Kim Starr · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“this treatment also produced significantly higher yield with improved growth and fiber traits”

✓ located verbatim in the source · abstract, characters 660–753 · show in text ↑
t0

“Gossypium barbadense L.”

✓ located verbatim in the source · title, characters 118–141 · show in text ↑
e1

“cotton plants were treated with soil application plus K foliar spray twice”

✓ located verbatim in the source · abstract, characters 477–551 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The combined potassium treatment improved fibre traits.

Taxon
Gossypium barbadense L.Gossypium barbadenset0
Treatment
soil application plus K foliar spray twicee1
Outcome
fiber traitse0
Direction
improvede0

Not reportedComparator

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

Gossypium barbadense
Gossypium barbadense · TaxonForest and Kim Starr · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“this treatment also produced significantly higher yield with improved growth and fiber traits”

✓ located verbatim in the source · abstract, characters 660–753 · show in text ↑
t0

“Gossypium barbadense L.”

✓ located verbatim in the source · title, characters 118–141 · show in text ↑
e1

“cotton plants were treated with soil application plus K foliar spray twice”

✓ located verbatim in the source · abstract, characters 477–551 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Variety and potassium treatment interacted significantly for growth, yield and fibre quality.

Material
varietiese0
Treatment
potassium fertilizer treatmentse0
Outcome
growth, cotton yield and fiber qualitye0

Not reportedDirection

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The interaction between varieties and potassium fertilizer treatments had a significant effect on growth, cotton yield and fiber quality”

✓ located verbatim in the source · abstract, characters 755–891 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Giza-90 combined with two soil and foliar potassium applications gave the best results among interactions.

Taxon
Gossypium barbadense L.Gossypium barbadenset0
Material
Giza-90e0
Treatment
soil and foliar application (2 times) of potassiume0
Outcome
best resultse0
Direction
beste0

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

Gossypium barbadense
Gossypium barbadense · TaxonForest and Kim Starr · CC BY 2.0 · Wikimedia Commons ↗

Verbatim

e0

“the Giza-90 variety x soil and foliar application (2 times) of potassium out of the interactions proved to have the best results”

✓ located verbatim in the source · abstract, characters 901–1029 · show in text ↑
t0

“Gossypium barbadense L.”

✓ located verbatim in the source · title, characters 118–141 · show in text ↑

potassium · yield · Gossypium hirsutum (cotton)Results differ

97 papers: 86 positive, 11 negative or no effect

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

  1. positive
  2. positive
  3. no effect

93 papers more in this group

See all 97 papers →

application · quality: grain · Gossypium barbadense (Egyptian cotton)Positive and negative results

10 papers: 9 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

6 papers more in this group

See all 10 papers →

application · yield · Gossypium hirsutum (cotton)Positive and negative results

283 papers: 253 positive, 30 negative or no effect

252 papers in the same direction as this paper · 27 in the opposite direction · 3 reporting no difference from an alternative

  1. positive
  2. no effect
  3. negative

279 papers more in this group

See all 283 papers →

application · yield · Gossypium barbadense (Egyptian cotton)Results agree

15 papers: 15 positive, 0 negative or no effect

14 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

11 papers more in this group

See all 15 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.