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).
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Claims 7
Claim · model-written summary
Soil potassium application improved cotton leaf number, area and dry weight.
- Taxon
- cotton plants
Gossypium 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.

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)”
Claim · model-written summary
Foliar potassium spray improved cotton leaf number, area and dry weight.
- Taxon
- cotton plants
Gossypium 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.

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)”
Claim · model-written summary
Soil potassium plus two foliar sprays at boll stages gave the best growth results relative to controls.
- Taxon
- cotton plants
Gossypium 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.

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”
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.
.jpg?width=500)
Verbatim
e0“this treatment also produced significantly higher yield with improved growth and fiber traits”
t0“Gossypium barbadense L.”
e1“cotton plants were treated with soil application plus K foliar spray twice”
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.
.jpg?width=500)
Verbatim
e0“this treatment also produced significantly higher yield with improved growth and fiber traits”
t0“Gossypium barbadense L.”
e1“cotton plants were treated with soil application plus K foliar spray twice”
Claim · model-written summary
Variety and potassium treatment interacted significantly for growth, yield and fibre quality.
- Taxon
- cotton
Gossypium hirsutume0 - 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.

Verbatim
e0“The interaction between varieties and potassium fertilizer treatments had a significant effect on growth, cotton yield and fiber quality”
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.
.jpg?width=500)
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”
t0“Gossypium barbadense L.”
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