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
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. crispa
Lactuca 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.

Verbatim
e0“curly green leaf lettuce ( Lactuca sativa var. crispa ‘Grand Rapids’) grown under hydroponic cultivation”
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”
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. crispa
Lactuca 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.

Verbatim
e0“curly green leaf lettuce ( Lactuca sativa var. crispa ‘Grand Rapids’) grown under hydroponic cultivation”
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”
Claim · model-written summary
Pure vermitea nutrient solution gave the greatest improvement in root dry weight at harvest.
- Taxon
- Lactuca sativa var. crispa
Lactuca 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.

Verbatim
e0“curly green leaf lettuce ( Lactuca sativa var. crispa ‘Grand Rapids’) grown under hydroponic cultivation”
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”
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. crispa
Lactuca 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.

Verbatim
e0“curly green leaf lettuce ( Lactuca sativa var. crispa ‘Grand Rapids’) grown under hydroponic cultivation”
e2“The combination of vermitea with inorganic nutrient solution exhibited higher plant growth parameters compared to those grown using combinations of IMO and FAA”
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. crispa
Lactuca 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.

Verbatim
e0“curly green leaf lettuce ( Lactuca sativa var. crispa ‘Grand Rapids’) grown under hydroponic cultivation”
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”
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. crispa
Lactuca 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.

Verbatim
e0“curly green leaf lettuce ( Lactuca sativa var. crispa ‘Grand Rapids’) grown under hydroponic cultivation”
e4“pure vermitea organic nutrient solution promoted strong lettuce growth, comparable to plants grown with commercially available inorganic nutrient solution”
Claim · model-written summary
Locally available organic nutrients can serve as a potentially effective nutrient solution for organic hydroponics.
- Taxon
- Lactuca sativa var. crispa
Lactuca sativa var. crispae0 - Outcome
- potentially effective nutrient solution for organic hydroponicse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“curly green leaf lettuce ( Lactuca sativa var. crispa ‘Grand Rapids’) grown under hydroponic cultivation”
e5“This indicates that locally available organic nutrients can serve as a potentially effective nutrient solution for organic hydroponics”
The same questions in other papers
fertilization · growth · Lactuca sativa (garden lettuce)Positive and negative results
201 papers in the same direction as this paper · 45 in the opposite direction · 1 reporting no difference from an alternative
- negative
- positive
- 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.