Abstract
Two experiments were carried out with phosphate fertilization of tomatoes in hydroponic culture. It has been proved that an additional dose of phosphorus given during the second cluster bloom, caused an yield increase. The optimal dose is 12 g of superphosphate (16% P2O5) per plant. The "green back" symptoms did not appear in these conditions. The parallel additional applying of calcium or potassium gave a decrease of the yield. When the light intensity was lowered to about 50%, the yield has decreased by half. In these conditions an additional applying of calcium (0,4 g CaCO3) and phosphorus (1g superphosphate) annulated the negative influence of the low light intensity.
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Claims 6
Claim · model-written summary
An additional phosphorus dose given during the second cluster bloom increased tomato yield in hydroponic culture.
- Taxon
- tomatoes
Solanum lycopersicume0 - Organ / stage
- second cluster bloome1
- Treatment
- an additional dose of phosphoruse1
- Outcome
- yielde1
- Direction
- increasee1
- Setting
- hydroponic culturee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilization of tomatoes in hydroponic culture”
e1“an additional dose of phosphorus given during the second cluster bloom, caused an yield increase”
Claim · model-written summary
The optimal dose for tomato in hydroponic culture is 12 g of superphosphate (16% P2O5) per plant.
- Taxon
- tomatoesSolanum lycopersicume0
- Treatment
- superphosphatee1
- Outcome
- optimal dosee1
- Value
- 12 ge1
- Qualifier
- 16% P2O5e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilization of tomatoes in hydroponic culture”
e1“The optimal dose is 12 g of superphosphate (16% P2O5) per plant”
Claim · model-written summary
The "green back" symptoms did not appear in tomato under these hydroponic conditions.
- Taxon
- tomatoesSolanum lycopersicume0
- Outcome
- "green back" symptomse1
- Qualifier
- in these conditionse1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilization of tomatoes in hydroponic culture”
e1“"green back" symptoms did not appear in these conditions”
Claim · model-written summary
An additional application of calcium or potassium decreased tomato yield in hydroponic culture.
- Taxon
- tomatoesSolanum lycopersicume0
- Treatment
- additional applying of calcium or potassiume1
- Outcome
- yielde1
- Direction
- decreasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilization of tomatoes in hydroponic culture”
e1“The parallel additional applying of calcium or potassium gave a decrease of the yield”
Claim · model-written summary
Lowering light intensity to about 50% decreased tomato yield by half in hydroponic culture.
- Taxon
- tomatoesSolanum lycopersicume0
- Treatment
- light intensity was lowered to about 50%e1
- Outcome
- yielde1
- Direction
- decreasede1
- Value
- by halfe1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilization of tomatoes in hydroponic culture”
e1“When the light intensity was lowered to about 50%, the yield has decreased by half”
Claim · model-written summary
An additional calcium and phosphorus application annulled the negative influence of low light intensity on tomato yield.
- Taxon
- tomatoesSolanum lycopersicume0
- Treatment
- an additional applying of calcium (0,4 g CaCO3) and phosphorus (1g superphosphate)e1
- Outcome
- negative influencee1
- Direction
- annulatede1
- Qualifier
- In these conditionse1
- Comparator
- the low light intensitye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilization of tomatoes in hydroponic culture”
e1“In these conditions an additional applying of calcium (0,4 g CaCO3) and phosphorus (1g superphosphate) annulated the negative influence of the low light intensity”
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See all 105 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.