Abstract
The influences of different N fertilization rates and soil salinity levels on the growth and nitrogen uptake of cotton was evaluated with a pot experiment under greenhouse conditions. Results showed that cotton growth measured as plant height was significantly affected by the soil salinity and N-salinity interaction, but not by N alone. Cotton was more sensitive to salinity during the emergence and early growth stages than the later developmental stages. At low to moderate soil salinity, the growth inhibition could be alleviated by fertilizer application. Soil salinity was a dominated factor affecting cotton’s above-ground dry mass and root development. Dry mass of seed was reduced by 22%, 52%, and 84% respectively, when the soil salinity level increased from control level of 2.4 dS m −1 to 7.7 dS m −1 , 12.5 dS m −1 and to 17.1 dS m −1 , respectively. N uptake increased with N fertilization at adequate rates at both low and medium soil salinities but was not influenced by over N fertilization. At higher salinities, N uptake was independent of N rates and mainly influenced by soil salinity. The uptake of K decreased with soil salinity. The concentration of Na, Cl and Ca in plant tissues increased with soil salinity with highest concentrations in the cotton leaf.
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Claims 14
Claim · model-written summary
Cotton height was significantly affected by soil salinity and its interaction with nitrogen fertilization.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- soil salinitye0
- Outcome
- plant heighte0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cotton growth measured as plant height was significantly affected by the soil salinity and N-salinity interaction, but not by N alone.”
Claim · model-written summary
Nitrogen fertilization alone did not significantly affect cotton height.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- N alonee0
- Outcome
- plant heighte0
- Direction
- note0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cotton growth measured as plant height was significantly affected by the soil salinity and N-salinity interaction, but not by N alone.”
Claim · model-written summary
Cotton was more sensitive to salinity at emergence and early growth than at later stages.
- Taxon
- CottonGossypium hirsutume0
- Organ / stage
- emergence and early growth stagese0
- Outcome
- sensitive to salinitye0
- Direction
- moree0
- Comparator
- later developmental stagese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton was more sensitive to salinity during the emergence and early growth stages than the later developmental stages.”
Claim · model-written summary
Fertilizer alleviated cotton growth inhibition at low to moderate salinity.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- fertilizer applicatione0
- Outcome
- growth inhibitione0
- Direction
- alleviatede0
- Qualifier
- low to moderate soil salinitye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At low to moderate soil salinity, the growth inhibition could be alleviated by fertilizer application.”
t0“cotton”
Claim · model-written summary
Soil salinity affected cotton above-ground dry mass.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- Soil salinitye0
- Outcome
- above-ground dry masse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil salinity was a dominated factor affecting cotton’s above-ground dry mass and root development.”
Claim · model-written summary
Soil salinity affected cotton root development.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- Soil salinitye0
- Outcome
- root developmente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil salinity was a dominated factor affecting cotton’s above-ground dry mass and root development.”
Claim · model-written summary
Cotton seed dry mass fell 22% at 7.7 dS m −1 relative to 2.4 dS m −1.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- 7.7 dS m −1e0
- Outcome
- Dry mass of seede0
- Direction
- reducede0
- Value
- 22%e0
- Comparator
- control level of 2.4 dS m −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry mass of seed was reduced by 22%, 52%, and 84% respectively, when the soil salinity level increased from control level of 2.4 dS m −1 to 7.7 dS m −1 , 12.5 dS m −1 and to 17.1 dS m −1 , respectively.”
t0“cotton”
Claim · model-written summary
Cotton seed dry mass fell 52% at 12.5 dS m −1 relative to 2.4 dS m −1.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- 12.5 dS m −1e0
- Outcome
- Dry mass of seede0
- Direction
- reducede0
- Value
- 52%e0
- Comparator
- control level of 2.4 dS m −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry mass of seed was reduced by 22%, 52%, and 84% respectively, when the soil salinity level increased from control level of 2.4 dS m −1 to 7.7 dS m −1 , 12.5 dS m −1 and to 17.1 dS m −1 , respectively.”
t0“cotton”
Claim · model-written summary
Cotton seed dry mass fell 84% at 17.1 dS m −1 relative to 2.4 dS m −1.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- 17.1 dS m −1e0
- Outcome
- Dry mass of seede0
- Direction
- reducede0
- Value
- 84%e0
- Comparator
- control level of 2.4 dS m −1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dry mass of seed was reduced by 22%, 52%, and 84% respectively, when the soil salinity level increased from control level of 2.4 dS m −1 to 7.7 dS m −1 , 12.5 dS m −1 and to 17.1 dS m −1 , respectively.”
t0“cotton”
Claim · model-written summary
Adequate nitrogen fertilization increased nitrogen uptake at low and medium salinity.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- N fertilization at adequate ratese0
- Outcome
- N uptakee0
- Direction
- increasede0
- Qualifier
- low and medium soil salinitiese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N uptake increased with N fertilization at adequate rates at both low and medium soil salinities but was not influenced by over N fertilization.”
t0“cotton”
Claim · model-written summary
Excess nitrogen fertilization did not influence cotton nitrogen uptake.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- over N fertilizatione0
- Outcome
- N uptakee0
- Direction
- not influencede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N uptake increased with N fertilization at adequate rates at both low and medium soil salinities but was not influenced by over N fertilization.”
t0“cotton”
Claim · model-written summary
At higher salinities cotton nitrogen uptake depended mainly on soil salinity and not nitrogen rate.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- soil salinitye0
- Outcome
- N uptakee0
- Qualifier
- higher salinitiese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At higher salinities, N uptake was independent of N rates and mainly influenced by soil salinity.”
t0“cotton”
Claim · model-written summary
Potassium uptake decreased as soil salinity increased.
- Taxon
- cottonGossypium hirsutumt0
- Treatment
- soil salinitye0
- Outcome
- uptake of Ke0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The uptake of K decreased with soil salinity.”
t0“cotton”
Claim · model-written summary
Cotton tissue sodium, chloride and calcium concentrations increased with salinity, highest in leaves.
- Taxon
- cottonGossypium hirsutume0
- Organ / stage
- cotton leafe0
- Treatment
- soil salinitye0
- Outcome
- concentration of Na, Cl and Ca in plant tissuese0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The concentration of Na, Cl and Ca in plant tissues increased with soil salinity with highest concentrations in the cotton leaf.”
The same questions in other papers
fertilization · disease · Gossypium hirsutum (cotton)Positive and negative results
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- negative
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- positive
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See all 131 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.