Abstract
This study was conducted to evaluate the effects of reduced nitrogen (N) and potassium (K) fertigation as additional fertilizer on tomato yield and nutrient contents in excessively nutrients-accumulated soil. Shoot and root dry weights (DW), dry matter rate for shoot, root and fruit and number of fruit in both AF50 and AF100 (50 and 100% levels of additional fertilizer) treatments were increased in comparison with those in AF0 (0% level of additional fertilizer) treatment. In case of nutrient uptake by tomato, nitrogen, phosphorous (P) and potassium contents in all tomato parts (leaf, stem, root and fruit) in AF50 and AF100 treatment were lower than those in AF0 treatment. On the contrary, soluble sugar and starch contents in all tomato parts in AF50 and AF100 were higher than those in AF0 treatment. There were differences between AF0 and AF50 or AF100 in tomato growth, yield, nutrient level and contents of soluble sugar and starch. In contrast, the level and initiation point of fertigation did not significantly affect the parameters. Based on our results, the application of properly reduced level of additional fertilizer is possible to maintain the productivity of tomato and alleviate the nutrient accumulation in plastic film house soils.
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Claims 6
Claim · model-written summary
AF50 and AF100 increased shoot and root dry weight and dry matter rates relative to AF0.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- AF50 and AF100 (50 and 100% levels of additional fertilizer) treatmentse0
- Outcome
- Shoot and root dry weights (DW), dry matter rate for shoot, root and fruite0
- Direction
- increasede0
- Comparator
- AF0 (0% level of additional fertilizer) treatmente0
Not reportedGeneOrgan / stageInteractorInteractor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot and root dry weights (DW), dry matter rate for shoot, root and fruit and number of fruit in both AF50 and AF100 (50 and 100% levels of additional fertilizer) treatments were increased in comparison with those in AF0 (0% level of additional fertilizer) treatment.”
t0“tomato”
Claim · model-written summary
AF50 and AF100 increased fruit number relative to AF0.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- AF50 and AF100 (50 and 100% levels of additional fertilizer) treatmentse0
- Outcome
- number of fruite0
- Direction
- increasede0
- Comparator
- AF0 (0% level of additional fertilizer) treatmente0
Not reportedGeneOrgan / stageInteractorInteractor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Shoot and root dry weights (DW), dry matter rate for shoot, root and fruit and number of fruit in both AF50 and AF100 (50 and 100% levels of additional fertilizer) treatments were increased in comparison with those in AF0 (0% level of additional fertilizer) treatment.”
t0“tomato”
Claim · model-written summary
AF50 and AF100 lowered nitrogen, phosphorus, and potassium contents in tomato parts relative to AF0.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- leaf, stem, root and fruite0
- Treatment
- AF50 and AF100 treatmente0
- Outcome
- nitrogen, phosphorous (P) and potassium contentse0
- Direction
- lowere0
- Comparator
- AF0 treatmente0
Not reportedGeneInteractorInteractor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“nitrogen, phosphorous (P) and potassium contents in all tomato parts (leaf, stem, root and fruit) in AF50 and AF100 treatment were lower than those in AF0 treatment.”
t0“tomato”
Claim · model-written summary
AF50 and AF100 increased soluble sugar and starch contents in tomato parts relative to AF0.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- AF50 and AF100e0
- Outcome
- soluble sugar and starch contentse0
- Direction
- highere0
- Comparator
- AF0 treatmente0
Not reportedGeneOrgan / stageInteractorInteractor roleSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soluble sugar and starch contents in all tomato parts in AF50 and AF100 were higher than those in AF0 treatment.”
t0“tomato”
Claim · model-written summary
Fertigation level and initiation point did not significantly affect the measured parameters.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- level and initiation point of fertigatione0
- Outcome
- parameterse0
- Direction
- did not significantly affecte0
Not reportedGeneOrgan / stageInteractorInteractor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the level and initiation point of fertigation did not significantly affect the parameters.”
t0“tomato”
Claim · model-written summary
The authors conclude that reducing additional fertilizer can maintain tomato productivity and alleviate soil nutrient accumulation.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- properly reduced level of additional fertilizere0
- Outcome
- maintain the productivity of tomato and alleviate the nutrient accumulatione0
- Setting
- plastic film house soilse0
Not reportedGeneOrgan / stageInteractorInteractor roleComparatorDirectionValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the application of properly reduced level of additional fertilizer is possible to maintain the productivity of tomato and alleviate the nutrient accumulation in plastic film house soils.”
t0“tomato”
The same questions in other papers
fertilization · growth · Solanum lycopersicum (tomato)Positive and negative results
566 papers in the same direction as this paper · 93 in the opposite direction · 8 reporting no difference from an alternative
- positive
- no effect
- negative
664 papers more in this group
See all 668 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.