Paper · 2025 · Agriculture (Pol nohospodárstvo)

Bio-Organic Hydroponic Cultivation of Curly Greens Leaf Lettuce ( Lactuca Sativa var. Crispa ‘Grand Rapids’)

Sarah Louise S. Atulba; Marie Angeli C. Abendaño

7
claims
14
verbatim quotes
0
citations
2
research areas
✓
Open access · cc-by-nc-nd

Abstract

Abstract Hydroponic cultivation, a climate-smart technology that complements conventional agriculture, is increasingly recognised as a key strategy for enhancing food security, optimising resource efficiency and reducing environmental impacts. Over the years, several high-value crops, such as leafy vegetables and herbs, have been successfully grown in hydroponic systems on a commercial level, with limited exploration of their potential for healthier organic cultivation. This study has effectively described the effects of indigenous bio-organic nutrient solutions on the growth and development of curly green leaf lettuce ( Lactuca sativa var. crispa ‘Grand Rapids’) grown under hydroponic cultivation. Five nutrient solution treatments using combinations of inorganic and bio-organic fertilisers namely, pure inorganic nutrient solution, pure vermitea, inorganic-vermitea, indigenous microorganisms (IMO)-vermitea, and fish amino acid (FAA)-vermitea were used. The pure vermitea nutrient solution showed the greatest improvements in plant growth, including plant height, number of leaves, leaf width, leaf length, shoot fresh weight, shoot dry weight, and root dry weight at harvest. The combination of vermitea with inorganic nutrient solution exhibited higher plant growth parameters compared to those grown using combinations of IMO and FAA, indicating the possible stunted growth of lettuce due to several factors, including the inhibitory effects of the abundant presence of microorganisms in a static solution culture. Our data revealed that pure vermitea organic nutrient solution promoted strong lettuce growth, comparable to plants grown with commercially available inorganic nutrient solution. This indicates that locally available organic nutrients can serve as a potentially effective nutrient solution for organic hydroponics, promoting healthier crop cultivation while being less harmful to the environment.

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Claims 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pure vermitea nutrient solution gave the greatest improvements in plant height, number of leaves and leaf width at harvest.

Taxon
Lactuca sativa var. crispaLactuca sativa var. crispae0
Treatment
pure vermitea nutrient solutione1
Outcome
plant height, number of leaves, leaf widthe1
Direction
greatest improvementse1
Setting
under hydroponic cultivatione0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa var. crispa
Lactuca sativa var. crispa · TaxonCostaPPPR · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“curly green leaf lettuce ( Lactuca sativa var. crispa ‘Grand Rapids’) grown under hydroponic cultivation”

✓ located verbatim in the source · abstract, characters 602–706 · show in text ↑
e1

“The pure vermitea nutrient solution showed the greatest improvements in plant growth, including plant height, number of leaves, leaf width, leaf length, shoot fresh weight, shoot dry weight, and root dry weight at harvest”

✓ located verbatim in the source · abstract, characters 967–1188 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pure vermitea nutrient solution gave the greatest improvements in leaf length, shoot fresh weight and shoot dry weight at harvest.

Taxon
Lactuca sativa var. crispaLactuca sativa var. crispae0
Treatment
pure vermitea nutrient solutione1
Outcome
leaf length, shoot fresh weight, shoot dry weighte1
Direction
greatest improvementse1
Setting
under hydroponic cultivatione0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa var. crispa
Lactuca sativa var. crispa · TaxonCostaPPPR · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“curly green leaf lettuce ( Lactuca sativa var. crispa ‘Grand Rapids’) grown under hydroponic cultivation”

✓ located verbatim in the source · abstract, characters 602–706 · show in text ↑
e1

“The pure vermitea nutrient solution showed the greatest improvements in plant growth, including plant height, number of leaves, leaf width, leaf length, shoot fresh weight, shoot dry weight, and root dry weight at harvest”

✓ located verbatim in the source · abstract, characters 967–1188 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pure vermitea nutrient solution gave the greatest improvement in root dry weight at harvest.

Taxon
Lactuca sativa var. crispaLactuca sativa var. crispae0
Treatment
pure vermitea nutrient solutione1
Outcome
root dry weighte1
Direction
greatest improvementse1
Setting
under hydroponic cultivatione0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa var. crispa
Lactuca sativa var. crispa · TaxonCostaPPPR · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“curly green leaf lettuce ( Lactuca sativa var. crispa ‘Grand Rapids’) grown under hydroponic cultivation”

✓ located verbatim in the source · abstract, characters 602–706 · show in text ↑
e1

“The pure vermitea nutrient solution showed the greatest improvements in plant growth, including plant height, number of leaves, leaf width, leaf length, shoot fresh weight, shoot dry weight, and root dry weight at harvest”

✓ located verbatim in the source · abstract, characters 967–1188 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Vermitea combined with inorganic nutrient solution gave higher plant growth parameters than combinations of IMO and FAA.

Taxon
Lactuca sativa var. crispaLactuca sativa var. crispae0
Treatment
vermitea with inorganic nutrient solutione2
Outcome
plant growth parameterse2
Direction
highere2
Comparator
combinations of IMO and FAAe2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa var. crispa
Lactuca sativa var. crispa · TaxonCostaPPPR · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“curly green leaf lettuce ( Lactuca sativa var. crispa ‘Grand Rapids’) grown under hydroponic cultivation”

✓ located verbatim in the source · abstract, characters 602–706 · show in text ↑
e2

“The combination of vermitea with inorganic nutrient solution exhibited higher plant growth parameters compared to those grown using combinations of IMO and FAA”

✓ located verbatim in the source · abstract, characters 1190–1349 · show in text ↑
Mechanismhypothesisoriginal resultnegativebasis n/a

Claim · model-written summary

Stunted growth of lettuce may be due to the inhibitory effects of abundant microorganisms in static solution culture.

Taxon
Lactuca sativa var. crispaLactuca sativa var. crispae0
Outcome
stunted growthe3
Qualifier
inhibitory effects of the abundant presence of microorganisms in a static solution culturee3

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa var. crispa
Lactuca sativa var. crispa · TaxonCostaPPPR · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“curly green leaf lettuce ( Lactuca sativa var. crispa ‘Grand Rapids’) grown under hydroponic cultivation”

✓ located verbatim in the source · abstract, characters 602–706 · show in text ↑
e3

“indicating the possible stunted growth of lettuce due to several factors, including the inhibitory effects of the abundant presence of microorganisms in a static solution culture”

✓ located verbatim in the source · abstract, characters 1351–1529 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Pure vermitea organic nutrient solution promoted lettuce growth, comparable to plants grown with commercially available inorganic nutrient solution.

Taxon
Lactuca sativa var. crispaLactuca sativa var. crispae0
Treatment
pure vermitea organic nutrient solutione4
Outcome
lettuce growthe4
Direction
promotede4
Qualifier
comparablee4
Comparator
commercially available inorganic nutrient solutione4

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa var. crispa
Lactuca sativa var. crispa · TaxonCostaPPPR · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“curly green leaf lettuce ( Lactuca sativa var. crispa ‘Grand Rapids’) grown under hydroponic cultivation”

✓ located verbatim in the source · abstract, characters 602–706 · show in text ↑
e4

“pure vermitea organic nutrient solution promoted strong lettuce growth, comparable to plants grown with commercially available inorganic nutrient solution”

✓ located verbatim in the source · abstract, characters 1554–1708 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Locally available organic nutrients can serve as a potentially effective nutrient solution for organic hydroponics.

Taxon
Lactuca sativa var. crispaLactuca sativa var. crispae0
Outcome
potentially effective nutrient solution for organic hydroponicse5

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lactuca sativa var. crispa
Lactuca sativa var. crispa · TaxonCostaPPPR · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“curly green leaf lettuce ( Lactuca sativa var. crispa ‘Grand Rapids’) grown under hydroponic cultivation”

✓ located verbatim in the source · abstract, characters 602–706 · show in text ↑
e5

“This indicates that locally available organic nutrients can serve as a potentially effective nutrient solution for organic hydroponics”

✓ located verbatim in the source · abstract, characters 1710–1844 · show in text ↑

fertilization · growth · Lactuca sativa (garden lettuce)Positive and negative results

248 papers: 202 positive, 46 negative or no effect

201 papers in the same direction as this paper · 45 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. positive
  3. negative

244 papers more in this group

See all 248 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.