Abstract
To investigate the potential of biochar as a propagation mix component, three experiments were conducted. A phytotoxicity test was conducted with water extract of sugarcane bagasse biochar (SBB), SBB mixes (10%, 30%, 50%, and 70% SBB with 30% perlite (P) and the rest being peat moss (PM); by vol.), mixed hardwood biochar (HB) mixes (10%, 30%, 50%, 70% and 100% HB with PM; by vol.), PM, P, 70%PM:30%P, and a commercial propagation mix (exp. 1). None of the mixes caused phytotoxicity. The same biochar mixes (except 100% HB) were used for the seedling growth test (exp. 2). Both tomato and basil seedlings grown in all of the biochar mixes (except 50% HB) had significantly lower fresh weight, dry weight and growth index (GI) compared to a commercial propagation mix. Six seedlings from each biochar mix were transplanted into a commercial growing mix and grown for four weeks (exp. 3). Tomato seedlings from all biochar mixes (except 30% SBB) had similar SPAD (Soil-Plant Analyses Development) and GI to the control. Basil seedlings from all HB mixes, 70% and 100% SBB mixes had similar GI to the control. In conclusion, 70% HB could be amended with PM for tomato and basil seedling production without negative effects on plant biomass.
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Claims 6
Claim · model-written summary
None of the tested mixes caused phytotoxicity.
- Taxon
- Tomato and Basil
Solanum lycopersicum
Ocimum basilicumt0 - Outcome
- phytotoxicitye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“None of the mixes caused phytotoxicity.”
t0“Tomato and Basil”
Claim · model-written summary
Tomato seedlings in biochar mixes other than 50% HB had significantly lower fresh weight, dry weight and growth index than commercial mix.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- biochar mixese0
- Outcome
- fresh weight, dry weight and growth index (GI)e0
- Direction
- lowere0
- Qualifier
- except 50% HBe0
- Comparator
- commercial propagation mixe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both tomato and basil seedlings grown in all of the biochar mixes (except 50% HB) had significantly lower fresh weight, dry weight and growth index (GI) compared to a commercial propagation mix.”
Claim · model-written summary
Basil seedlings in biochar mixes other than 50% HB had significantly lower fresh weight, dry weight and growth index than commercial mix.
- Taxon
- basilOcimum basilicume0
- Treatment
- biochar mixese0
- Outcome
- fresh weight, dry weight and growth index (GI)e0
- Direction
- lowere0
- Qualifier
- except 50% HBe0
- Comparator
- commercial propagation mixe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both tomato and basil seedlings grown in all of the biochar mixes (except 50% HB) had significantly lower fresh weight, dry weight and growth index (GI) compared to a commercial propagation mix.”
Claim · model-written summary
Transplanted tomato seedlings from biochar mixes other than 30% SBB had SPAD and growth index similar to control.
- Taxon
- TomatoSolanum lycopersicume0
- Treatment
- biochar mixese0
- Outcome
- SPAD (Soil-Plant Analyses Development) and GIe0
- Direction
- similare0
- Qualifier
- except 30% SBBe0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Tomato seedlings from all biochar mixes (except 30% SBB) had similar SPAD (Soil-Plant Analyses Development) and GI to the control.”
Claim · model-written summary
Transplanted basil seedlings from HB mixes and 70% and 100% SBB mixes had growth index similar to control.
- Taxon
- BasilOcimum basilicume0
- Treatment
- all HB mixes, 70% and 100% SBB mixese0
- Outcome
- GIe0
- Direction
- similare0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Basil seedlings from all HB mixes, 70% and 100% SBB mixes had similar GI to the control.”
Claim · model-written summary
The authors conclude that 70% HB amended with PM can produce tomato and basil seedlings without negative biomass effects.
- Taxon
- tomato and basilSolanum lycopersicumOcimum basilicume0
- Outcome
- 70% HB could be amended with PM for tomato and basil seedling productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“70% HB could be amended with PM for tomato and basil seedling production without negative effects on plant biomass.”
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biochar · growth · Solanum lycopersicum (tomato)Results differ
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See all 11 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.