Abstract
A field experiment was conducted to study the effect of different N fertilizer application rate on tomato growth,yield and economic benefit in second generation greenhouse.The results showed that the total salts content was increased with the N application,yet pH was decreased at the same time.The height,stem diameter and chlorophyll of tomato were increased along with increment of N application.When more than 600 kg·hm-2 N was used in the field,the trunk breadth of tomato was significantly increased and led to overgrowth of leaves.The yield of tomato was increased along with enhanced N application rate,yet the yield of tomato was decreased if N applied more than 600 kg·hm-2.N application promotes the increase of soluble sugar,Vc,and NO3——N content,but reduce the total acidity.Changed ratio of sugar/acidity improves the quality of tomato.The reasonable application rate of N is 646 kg·hm-2.The optimum application rate of N is 604 kg·hm-2.
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Claims 11
Claim · model-written summary
Soil total salts increased with nitrogen application.
- Taxon
- Tomato
Solanum lycopersicumt0 - Treatment
- N applicatione0
- Outcome
- total salts contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the total salts content was increased with the N application”
t0“Tomato”
Claim · model-written summary
Soil pH decreased with nitrogen application.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- N Fertilizert0
- Outcome
- pHe0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pH was decreased at the same time”
t0“N Fertilizer on Growth,Yield,Quality of Tomato”
Claim · model-written summary
Tomato height, stem diameter and chlorophyll increased as nitrogen application increased.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- N applicatione0
- Outcome
- height,stem diameter and chlorophylle0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The height,stem diameter and chlorophyll of tomato were increased along with increment of N application”
Claim · model-written summary
Above 600 kg·hm-2 N, tomato trunk breadth increased significantly and leaves overgrew.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- more than 600 kg·hm-2 Ne0
- Outcome
- trunk breadthe0
- Direction
- increasede0
- Qualifier
- overgrowth of leavese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When more than 600 kg·hm-2 N was used in the field,the trunk breadth of tomato was significantly increased and led to overgrowth of leaves”
Claim · model-written summary
Tomato yield increased as nitrogen application increased, up to 600 kg·hm-2.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- N application ratee0
- Outcome
- yielde0
- Direction
- increasede0
- Qualifier
- more than 600 kg·hm-2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield of tomato was increased along with enhanced N application rate,yet the yield of tomato was decreased if N applied more than 600 kg·hm-2”
Claim · model-written summary
Tomato yield decreased when nitrogen application exceeded 600 kg·hm-2.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- N applied more than 600 kg·hm-2e0
- Outcome
- yielde0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the yield of tomato was decreased if N applied more than 600 kg·hm-2”
Claim · model-written summary
Nitrogen application increased soluble sugar, Vc and NO3——N contents in tomato.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- N applicatione0
- Outcome
- soluble sugar,Vc,and NO3——N contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N application promotes the increase of soluble sugar,Vc,and NO3——N content”
t0“Tomato”
Claim · model-written summary
Nitrogen application reduced total acidity in tomato.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- N applicatione0
- Outcome
- total aciditye0
- Direction
- reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N application promotes the increase of soluble sugar,Vc,and NO3——N content,but reduce the total acidity”
t0“Tomato”
Claim · model-written summary
The changed sugar-to-acidity ratio improved tomato quality.
- Taxon
- tomatoSolanum lycopersicume0
- Outcome
- qualitye0
- Direction
- improvese0
- Qualifier
- ratio of sugar/aciditye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Changed ratio of sugar/acidity improves the quality of tomato”
Claim · model-written summary
The authors identified 646 kg·hm-2 as a reasonable nitrogen application rate.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- reasonable application rate of Ne0
- Value
- 646 kg·hm-2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The reasonable application rate of N is 646 kg·hm-2”
t0“Tomato”
Claim · model-written summary
The authors identified 604 kg·hm-2 as the optimum nitrogen application rate.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- optimum application rate of Ne0
- Value
- 604 kg·hm-2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The optimum application rate of N is 604 kg·hm-2”
t0“Tomato”
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See all 210 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.