Abstract
A field experiment was conducted to study cotton growth and nitrogen uptake in response to different water and nitrogen application rates under drip irrigation with saline water.Three irrigation water salinity levels were set as 0.35(S1),4.61(S2) and 8.04(S3) dS/m;two water and nitrogen application rates were set as 405(L1),540(L2) mm and 240(N1),360(N2) kg/hm2,respectively.The results showed that plant height of cotton were influenced significantly by water salinity,application rates of water and interaction between them,and the interaction among water salinity,water application rate and nitrogen application rate at earlier growth stage,but mainly affected by water application rate at the later stage.The order of plant height were S2 S1 S3 with water application 540 mm(L2),while no significant difference were found on the growth of plant height between two nitrogen rates.The dry matter accumulation of the cotton stem and leaves are influenced significantly by the intreaction among water salinity,application rates of water and nitrogen application,but cotton bolls and total dry matter accumulation are not significantly influenced by the interaction.Nitrogen uptake of cotton was influenced significantly by water salinity,application rates of water and nitrogen,and interactions between two of them or among the three factors.Total nitrogen content of cotton reduced with water salinity increasing,but increased evidently when water application rate was increased.Those results suggest that higher water application rate can enhance nitrogen uptake of cotton under drip irrigation with saline water.
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Claims 11
Claim · model-written summary
Cotton plant height at the earlier stage was significantly influenced by water salinity, water application rate and their interaction.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- water salinity,application rates of water and interaction between theme0
- Outcome
- plant heighte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant height of cotton were influenced significantly by water salinity,application rates of water and interaction between them”
Claim · model-written summary
Cotton plant height at earlier growth stage was significantly influenced by the interaction among water salinity, water rate and nitrogen rate.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- the interaction among water salinity,water application rate and nitrogen application ratee1
- Outcome
- plant heighte0
- Qualifier
- at earlier growth stagee1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant height of cotton”
e1“the interaction among water salinity,water application rate and nitrogen application rate at earlier growth stage”
Claim · model-written summary
At the later growth stage cotton plant height was mainly affected by water application rate.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- water application ratee1
- Outcome
- plant heighte0
- Qualifier
- at the later stagee1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plant height of cotton”
e1“but mainly affected by water application rate at the later stage”
Claim · model-written summary
With 540 mm water application, cotton plant height ordered S2 > S1 > S3 across salinity levels.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- water application 540 mm(L2)e0
- Outcome
- order of plant heighte0
- Direction
- S2 S1 S3e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The order of plant height were S2 S1 S3 with water application 540 mm(L2)”
t0“Cotton”
Claim · model-written summary
No significant difference in cotton plant height growth was found between the two nitrogen rates.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- nitrogen ratese0
- Outcome
- growth of plant heighte0
- Direction
- no significant differencee0
- Comparator
- two nitrogen ratese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no significant difference were found on the growth of plant height between two nitrogen rates”
t0“Cotton”
Claim · model-written summary
Dry matter accumulation of cotton stem and leaves was significantly influenced by the interaction of water salinity, water rate and nitrogen rate.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- water salinity,application rates of water and nitrogen applicatione0
- Outcome
- dry matter accumulation of the cotton stem and leavese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The dry matter accumulation of the cotton stem and leaves are influenced significantly by the intreaction among water salinity,application rates of water and nitrogen application”
Claim · model-written summary
Cotton boll and total dry matter accumulation were not significantly influenced by the interaction.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- the interactione0
- Outcome
- cotton bolls and total dry matter accumulatione0
- Direction
- not significantly influencede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but cotton bolls and total dry matter accumulation are not significantly influenced by the interaction”
Claim · model-written summary
Cotton nitrogen uptake was significantly influenced by water salinity, water rate, nitrogen rate and their interactions.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- water salinity,application rates of water and nitrogene0
- Outcome
- Nitrogen uptakee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen uptake of cotton was influenced significantly by water salinity,application rates of water and nitrogen,and interactions between two of them or among the three factors”
Claim · model-written summary
Total nitrogen content of cotton decreased as water salinity increased.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- water salinity increasinge0
- Outcome
- Total nitrogen contente0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total nitrogen content of cotton reduced with water salinity increasing”
Claim · model-written summary
Total nitrogen content of cotton increased evidently when water application rate was increased.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- water application ratee1
- Outcome
- Total nitrogen contente0
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Total nitrogen content of cotton”
e1“increased evidently when water application rate was increased”
Claim · model-written summary
The authors suggest a higher water application rate can enhance cotton nitrogen uptake under drip irrigation with saline water.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- higher water application ratee0
- Outcome
- nitrogen uptakee0
- Direction
- enhancee0
- Setting
- drip irrigation with saline watere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“higher water application rate can enhance nitrogen uptake of cotton under drip irrigation with saline water”
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See all 153 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.