Abstract
Abstract A potassium fertilizer field trial was carried out on a coarse silty loamy soil, low in exchangeable K + in the Zhejiang Province (People's Republic of China). Potassium fertilizer applications increased the leaf area, the chlorophyll concentration, and the CO 2 assimilation of cotton grown on this K + deficient soil. Potassium increased the activity of the cytochrome oxidase and nitrate reductase, increased the stomatal conductance and decreased the transpiration. The leaf tissue of K + deficient plants was flaccid, the cuticle of leaves poorly developed and contrasted much with the leaves well supplied with K + which were characterized by a full turgor and a well developed cuticle. According to these physiological effects of K + , potassium fertilizer application increased lint yield and improved cotton and seed quality.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 8
Claim · model-written summary
Potassium fertilizer increased cotton leaf area.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- Potassium fertilizer applicationse0
- Outcome
- leaf areae0
- Direction
- increasede0
- Setting
- K + deficient soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium fertilizer applications increased the leaf area, the chlorophyll concentration, and the CO 2 assimilation of cotton grown on this K + deficient soil”
Claim · model-written summary
Potassium fertilizer increased cotton chlorophyll concentration and CO 2 assimilation.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- Potassium fertilizer applicationse0
- Outcome
- chlorophyll concentration, and the CO 2 assimilatione0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium fertilizer applications increased the leaf area, the chlorophyll concentration, and the CO 2 assimilation of cotton grown on this K + deficient soil”
Claim · model-written summary
Potassium increased cytochrome oxidase and nitrate reductase activity.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- Potassiume0
- Outcome
- activity of the cytochrome oxidase and nitrate reductasee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium increased the activity of the cytochrome oxidase and nitrate reductase”
t0“Cotton”
Claim · model-written summary
Potassium increased stomatal conductance.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- Potassiume0
- Outcome
- stomatal conductancee0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium increased the activity of the cytochrome oxidase and nitrate reductase, increased the stomatal conductance and decreased the transpiration”
t0“Cotton”
Claim · model-written summary
Potassium decreased transpiration.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- Potassiume0
- Outcome
- transpiratione0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Potassium increased the activity of the cytochrome oxidase and nitrate reductase, increased the stomatal conductance and decreased the transpiration”
t0“Cotton”
Claim · model-written summary
Potassium deficient cotton leaves were flaccid and had poorly developed cuticles compared with adequately supplied leaves.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- K + deficiente0
- Outcome
- leaf tissuee0
- Qualifier
- flaccide0
- Comparator
- well supplied with K +e0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The leaf tissue of K + deficient plants was flaccid, the cuticle of leaves poorly developed and contrasted much with the leaves well supplied with K + which were characterized by a full turgor and a well developed cuticle”
t0“Cotton”
Claim · model-written summary
Potassium fertilizer increased cotton lint yield.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- potassium fertilizer applicatione0
- Outcome
- lint yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potassium fertilizer application increased lint yield and improved cotton and seed quality”
Claim · model-written summary
Potassium fertilizer improved cotton and seed quality.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- potassium fertilizer applicatione0
- Outcome
- cotton and seed qualitye0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“potassium fertilizer application increased lint yield and improved cotton and seed quality”
The same questions in other papers
potassium · physiology: gas exchange · Gossypium hirsutum (cotton)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
fertilization · physiology: photosynthesis · Gossypium hirsutum (cotton)Positive and negative results
19 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- no effect
19 papers more in this group
See all 23 papers →fertilization · quality: grain · Gossypium hirsutum (cotton)Positive and negative results
81 papers in the same direction as this paper · 46 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- no effect
- no effect
125 papers more in this group
See all 129 papers →fertilization · growth · Gossypium hirsutum (cotton)Positive and negative results
176 papers in the same direction as this paper · 23 in the opposite direction · 2 reporting no difference from an alternative
- negative
- no effect
- no effect
198 papers more in this group
See all 202 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.