Abstract
The study on the effect of nitrogen fertilization at different physiological stages on growth and N uptake of cut chrysanthemums grown under lowland conditions in soilless culture system was conducted.Early plant growth was significantly reduced when supplied with the lowest N level during the first 20 days of vegetative growth.Nitrogen at 200 mgl,' probably was the critical level for early vegetative development.However, for early flowering, 300 N was needed.Maintaining high levels of N through out the plant growth was not required since reduction of N from 300 to 200 or 75 mgl,' during flowering stage did not jeopardize plant and flower development.Nitrogen uptake was highest during vegetative growth.Reducing N levels at flower developmental stage did not affect nutrient content in tissues.
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Claims 5
Claim · model-written summary
Lowest N level during the first 20 days of vegetative growth significantly reduced early plant growth of chrysanthemums.
- Taxon
- chrysanthemums
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Chrysanthemume0 - Treatment
- lowest N level during the first 20 days of vegetative growthe1
- Outcome
- Early plant growthe1
- Direction
- significantly reducede1
- Setting
- soilless culture systeme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
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Verbatim
e0“cut chrysanthemums grown under lowland conditions in soilless culture system”
e1“Early plant growth was significantly reduced when supplied with the lowest N level during the first 20 days of vegetative growth”
Claim · model-written summary
Nitrogen at about 200 mg/l probably was the critical level for early vegetative development of chrysanthemums.
- Taxon
- chrysanthemumsChrysanthemume0
- Treatment
- Nitrogen at 200 mgle2
- Outcome
- critical level for early vegetative developmente2
- Value
- 200 mgle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cut chrysanthemums grown under lowland conditions in soilless culture system”
e2“Nitrogen at 200 mgl,' probably was the critical level for early vegetative development”
Claim · model-written summary
For early flowering of chrysanthemums, 300 N was needed.
- Taxon
- chrysanthemumsChrysanthemume0
- Treatment
- 300 Ne3
- Outcome
- early floweringe3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cut chrysanthemums grown under lowland conditions in soilless culture system”
e3“However, for early flowering, 300 N was needed”
Claim · model-written summary
Nitrogen uptake of chrysanthemums was highest during vegetative growth.
- Taxon
- chrysanthemumsChrysanthemume0
- Organ / stage
- vegetative growthe5
- Outcome
- Nitrogen uptakee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cut chrysanthemums grown under lowland conditions in soilless culture system”
e5“Nitrogen uptake was highest during vegetative growth”
Claim · model-written summary
Reducing N levels at the flower developmental stage did not affect nutrient content in chrysanthemum tissues.
- Taxon
- chrysanthemumsChrysanthemume0
- Organ / stage
- flower developmental stagee6
- Treatment
- Reducing N levels at flower developmental stagee6
- Outcome
- nutrient content in tissuese6
- Direction
- did not affecte6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cut chrysanthemums grown under lowland conditions in soilless culture system”
e6“Reducing N levels at flower developmental stage did not affect nutrient content in tissues”
The same questions in other papers
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See all 21 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.