Abstract
Hydroponical experiment was carried out to study the effects of different nitrogen levels (5,10,15,20 mmol·L~-1)on biomass,nitrate and soluble sugar contents in different parts in spinach(Spinacia oleracea).The optimal nitrogen level for spinach growth was 15 mmol·L~-1.The content of nitrate increased with the increasing of nitrogen levels,while soluble sugar decreased,which indicated that proper nitrogen management could improve the quality of spinach.
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Claims 4
Claim · model-written summary
The optimal nitrogen level for spinach growth was 15 mmol/L.
- Taxon
- spinach
Spinacia oleraceae0 - Outcome
- optimal nitrogen level for spinach growthe0
- Value
- 15 mmol·L~-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The optimal nitrogen level for spinach growth was 15 mmol·L~-1”
Claim · model-written summary
Nitrate content of spinach increased with increasing nitrogen levels.
- Taxon
- spinach
Spinacia oleraceae0 - Treatment
- nitrogen levelse1
- Outcome
- content of nitratee1
- Direction
- increasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“spinach(Spinacia oleracea)”
e1“The content of nitrate increased with the increasing of nitrogen levels”
Claim · model-written summary
Soluble sugar content of spinach decreased with increasing nitrogen levels.
- Taxon
- spinach
Spinacia oleraceae0 - Treatment
- nitrogen levelse1
- Outcome
- soluble sugare1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“spinach(Spinacia oleracea)”
e1“The content of nitrate increased with the increasing of nitrogen levels,while soluble sugar decreased”
Claim · model-written summary
Proper nitrogen management could improve spinach quality.
- Taxon
- spinach
Spinacia oleraceae0 - Outcome
- qualitye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“spinach(Spinacia oleracea)”
e1“proper nitrogen management could improve the quality of spinach”
The same questions in other papers
nitrogen · physiology: osmolytes · Spinacia oleracea (spinach)Positive and negative results
1 in the opposite direction
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nitrogen · nutrient: content · Spinacia oleracea (spinach)Positive and negative results
13 papers in the same direction as this paper · 21 in the opposite direction
- positive
- positive
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31 papers more in this group
See all 35 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.