Abstract
This research investigated the potential of biochar derived from the cyanobacterium Microcystis aeruginosa as a soil amendment for improving tomato plant growth and soil health. M. aeruginosa was cultivated in a semi-continuous culture system, and its biomass was converted into biochar through pyrolysis. The biochar was then applied to soil planted with tomato seedlings. The results demonstrated that biochar application significantly enhanced various tomato plant growth parameters, including germination rate, root length, shoot length, leaf length, number of leaves per plant, and water use efficiency. Furthermore, biochar application led to increased chlorophyll a, b and total chlorophyll content in the tomato plants. The study also revealed positive impacts of biochar on soil properties. Biochar application improved soil pH by shifting it from acidic to neutral and increased soil moisture content. Soil microbial populations, including both bacteria and fungi, exhibited significant growth after biochar amendment. Additionally, the activity of soil enzymes, such as soil acid phosphatase and soil dehydrogenase, was enhanced by biochar application. Moreover, biochar application resulted in increased soil content of essential plant nutrients, including nitrogen (N), phosphorus (P), and potassium (K). These findings suggest that biochar derived from M. aeruginosa holds promise as a sustainable soil amendment for promoting tomato plant growth and improving overall soil health.
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Claims 8
Claim · model-written summary
Biochar significantly improved tomato germination rate, root length, and shoot length.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- biochar applicatione0
- Outcome
- germination rate, root length, shoot lengthe0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“biochar application significantly enhanced various tomato plant growth parameters, including germination rate, root length, shoot length, leaf length, number of leaves per plant, and water use efficiency”
Claim · model-written summary
Biochar significantly improved tomato leaf length, leaf count, and water use efficiency.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- biochar applicatione0
- Outcome
- leaf length, number of leaves per plant, and water use efficiencye0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“biochar application significantly enhanced various tomato plant growth parameters, including germination rate, root length, shoot length, leaf length, number of leaves per plant, and water use efficiency”
Claim · model-written summary
Biochar increased tomato chlorophyll a, b, and total chlorophyll content.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- biochar applicatione0
- Outcome
- chlorophyll a, b and total chlorophyll contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“biochar application led to increased chlorophyll a, b and total chlorophyll content in the tomato plants”
Claim · model-written summary
Biochar shifted soil pH from acidic to neutral.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Biochar applicatione0
- Outcome
- soil pHe0
- Direction
- improvede0
- Qualifier
- from acidic to neutrale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Biochar application improved soil pH by shifting it from acidic to neutral”
t0“Tomato Plant”
Claim · model-written summary
Biochar increased soil moisture content.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Biochar applicatione0
- Outcome
- soil moisture contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Biochar application improved soil pH by shifting it from acidic to neutral and increased soil moisture content”
t0“Tomato Plant”
Claim · model-written summary
Biochar significantly increased soil bacterial populations.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- biochar amendmente0
- Outcome
- Soil microbial populations, including both bacteria and fungie0
- Direction
- growthe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Soil microbial populations, including both bacteria and fungi, exhibited significant growth after biochar amendment”
t0“Tomato Plant”
Claim · model-written summary
Biochar enhanced soil acid phosphatase and dehydrogenase activity.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- biochar applicatione0
- Outcome
- activity of soil enzymes, such as soil acid phosphatase and soil dehydrogenasee0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the activity of soil enzymes, such as soil acid phosphatase and soil dehydrogenase, was enhanced by biochar application”
t0“Tomato Plant”
Claim · model-written summary
Biochar increased soil nitrogen, phosphorus, and potassium.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- biochar applicatione0
- Outcome
- soil content of essential plant nutrients, including nitrogen (N), phosphorus (P), and potassium (K)e0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“biochar application resulted in increased soil content of essential plant nutrients, including nitrogen (N), phosphorus (P), and potassium (K)”
t0“Tomato Plant”
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See all 11 papers →8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.