Abstract
Purpose: In recent years, interest in plant nutrition research has arisen with a strong focus on organic forms. The aim of this study was to determine the effect of different organic fertilizers on growth, yield, fruit quality and polyphenol content in soilless grown grape tomatoes under greenhouse conditions.Materials and methods: Tomato plants were subjected to three organic nutrient solutions, which consisted of different mixtures of several OMRI (Organic Materials Review Institute) certified nitrogen fertilizers of industrially processed residues: Treatment I: solid and soluble liquid fertilizers of animal raw materials, natural potassium sulphate-non-synthetic, and calcium chloride; Treatment II: solid and soluble liquid fertilizers of animal raw materials, by-product of marine raw material (soluble liquid), natural potassium sulphate-non-synthetic, and calcium chloride; and Treatment III: solid fertilizers of animal raw materials, natural potassium sulphate-non-synthetic, and calcium chloride to 100% [0-30 days after transplanting (DAT)], 125% [31-80 DAT], and 150% [>81 DAT]. The Steiner solution (SS) was used as a control (Treatment IV).Results: Yield did not differ between organic and conventional treatments, ranging from 3.04 to 3.35 kg m-2 while fresh weight in organic treatments was 3.14 compared to 3.2 kg m-2 in plants fed with the SS. No significant differences in plant height or fruit quality were found. The application of organic fertilizers positively affected the total hydrolysable and condensed polyphenols of tomato fruits compared to the control. Twelve phenolic compounds were identified, highlighting 3-Caffeoylquinic acid, salvianolic acid and 5,6-Dihydroxy-7,8,3’,4’-tetramethoxyflavone (Treatment I) and Medioresinol (Lignan) (Treatment II).Conclusions: The results indicated that organic fertilization through animal-based fertilizer application is a feasible alternative for grape tomato production under greenhouse conditions.
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Claims 7
Claim · model-written summary
Organic and conventional treatments had similar tomato yield.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- organice0
- Outcome
- Yielde0
- Direction
- did not differe0
- Value
- 3.04 to 3.35 kg m-2e0
- Comparator
- conventional treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Yield did not differ between organic and conventional treatments, ranging from 3.04 to 3.35 kg m-2”
t0“grape tomato”
Claim · model-written summary
Organic treatments had fruit fresh weight of 3.14 kg m-2 versus 3.2 kg m-2 with Steiner solution.
- Taxon
- grape tomatot0
- Treatment
- organic treatmentse0
- Outcome
- fresh weighte0
- Value
- 3.14e0
- Qualifier
- 3.2 kg m-2e0
- Comparator
- the SSe0
Not reportedDirection
Verbatim
e0“fresh weight in organic treatments was 3.14 compared to 3.2 kg m-2 in plants fed with the SS”
t0“grape tomato”
Claim · model-written summary
Organic treatments did not significantly change plant height or fruit quality.
Not reportedTreatmentComparator
Verbatim
e0“No significant differences in plant height or fruit quality were found”
t0“grape tomato”
Claim · model-written summary
Organic fertilizers increased total hydrolysable and condensed polyphenols in tomato fruits versus control.
- Taxon
- tomatoSolanum lycopersicume0
- Organ / stage
- fruitse0
- Treatment
- organic fertilizerse0
- Outcome
- total hydrolysable and condensed polyphenolse0
- Direction
- positively affectede0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of organic fertilizers positively affected the total hydrolysable and condensed polyphenols of tomato fruits compared to the control”
Claim · model-written summary
Twelve phenolic compounds were identified, including three highlighted in Treatment I.
Verbatim
e0“Twelve phenolic compounds were identified, highlighting 3-Caffeoylquinic acid, salvianolic acid and 5,6-Dihydroxy-7,8,3’,4’-tetramethoxyflavone (Treatment I)”
t0“grape tomato”
Claim · model-written summary
Medioresinol was highlighted in Treatment II.
Verbatim
e0“Medioresinol (Lignan) (Treatment II)”
t0“grape tomato”
Claim · model-written summary
Animal-based organic fertilization is a feasible alternative for greenhouse grape tomato production.
Verbatim
e0“organic fertilization through animal-based fertilizer application is a feasible alternative for grape tomato production under greenhouse conditions”
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See all 171 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.