Abstract
Abstract Biochar has received significant interest as a soil amendment but its relative performance to addition of high-quality soil is not well assessed. This study compared different loadings of cabbage-waste biochar produced at 360 °C against potting mixture (PM) as amendments to enhance basil ( Ocimum basilicum ) growth in sandy soil. Pot tests for six conditions of biochar, PM or their blend were tested at both 2% or 6% loading, plus a control, with soil and plant characteristics monitored. The combination of 6% biochar and 6% PM increased seed germination by 85% compared to the control, while 6% biochar applied in sandy soil reduced seed germination by 29%. However, significant benefits were realized later in the growing stage in comparison to the control and most other tested conditions. The 6% application of biochar to the soil enhanced leaf chlorophyll and carotenoid contents, membrane stability index, and leaf relative water content by 198%, 150%, 15%, and 5% over the control, respectively. The highest shoot and total biomass were achieved with the combined application of 6% biochar and PM, followed by 6% biochar only. When comparing only application of biochar or PM, biochar was the more favorable soil amendment at both 2% and 6% loadings. Biochar was also effective at enhancing plant uptake of beneficial nutrients, while immobilizing Al, which is detrimental, in the soil. Overall, biochar is a better soil amendment for sandy soil than equivalent quantities of PM, but mild benefits occur through their combined application.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
Combined 6% biochar and 6% potting mixture increased basil seed germination 85% relative to control.
- Taxon
- basil
Ocimum basilicume1 - Treatment
- 6% biochar and 6% PMe0
- Outcome
- seed germinatione0
- Direction
- increasede0
- Value
- 85%e0
- Comparator
- the controle0
- Setting
- sandy soile1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The combination of 6% biochar and 6% PM increased seed germination by 85% compared to the control”
e1“basil ( Ocimum basilicum ) growth in sandy soil”
Claim · model-written summary
Six percent biochar in sandy soil reduced basil seed germination 29%.
- Taxon
- basilOcimum basilicume1
- Treatment
- 6% biochare0
- Outcome
- seed germinatione0
- Direction
- reducede0
- Value
- 29%e0
- Setting
- sandy soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“6% biochar applied in sandy soil reduced seed germination by 29%”
e1“basil ( Ocimum basilicum ) growth in sandy soil”
Claim · model-written summary
Six percent biochar increased basil leaf chlorophyll content 198% over control.
- Taxon
- basilOcimum basilicume1
- Treatment
- 6% application of biochare0
- Outcome
- leaf chlorophylle0
- Direction
- enhancede0
- Value
- 198%e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 6% application of biochar to the soil enhanced leaf chlorophyll and carotenoid contents, membrane stability index, and leaf relative water content by 198%, 150%, 15%, and 5% over the control, respectively”
e1“basil ( Ocimum basilicum ) growth in sandy soil”
Claim · model-written summary
Six percent biochar increased basil leaf carotenoid content 150% over control.
- Taxon
- basilOcimum basilicume1
- Treatment
- 6% application of biochare0
- Outcome
- carotenoid contentse0
- Direction
- enhancede0
- Value
- 150%e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 6% application of biochar to the soil enhanced leaf chlorophyll and carotenoid contents, membrane stability index, and leaf relative water content by 198%, 150%, 15%, and 5% over the control, respectively”
e1“basil ( Ocimum basilicum ) growth in sandy soil”
Claim · model-written summary
Six percent biochar increased basil membrane stability index 15% over control.
- Taxon
- basilOcimum basilicume1
- Treatment
- 6% application of biochare0
- Outcome
- membrane stability indexe0
- Direction
- enhancede0
- Value
- 15%e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 6% application of biochar to the soil enhanced leaf chlorophyll and carotenoid contents, membrane stability index, and leaf relative water content by 198%, 150%, 15%, and 5% over the control, respectively”
e1“basil ( Ocimum basilicum ) growth in sandy soil”
Claim · model-written summary
Six percent biochar increased basil leaf relative water content 5% over control.
- Taxon
- basilOcimum basilicume1
- Treatment
- 6% application of biochare0
- Outcome
- leaf relative water contente0
- Direction
- enhancede0
- Value
- 5%e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 6% application of biochar to the soil enhanced leaf chlorophyll and carotenoid contents, membrane stability index, and leaf relative water content by 198%, 150%, 15%, and 5% over the control, respectively”
e1“basil ( Ocimum basilicum ) growth in sandy soil”
Claim · model-written summary
Combined biochar and potting mixture gave the highest basil shoot and total biomass, followed by biochar alone.
- Taxon
- basilOcimum basilicume1
- Treatment
- combined application of 6% biochar and PMe0
- Outcome
- shoot and total biomasse0
- Direction
- higheste0
- Comparator
- 6% biochar onlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest shoot and total biomass were achieved with the combined application of 6% biochar and PM, followed by 6% biochar only”
e1“basil ( Ocimum basilicum ) growth in sandy soil”
Claim · model-written summary
Biochar alone was more favorable than potting mixture alone at both loadings.
- Taxon
- basilOcimum basilicume1
- Treatment
- biochare0
- Outcome
- more favorable soil amendmente0
- Direction
- more favorablee0
- Qualifier
- both 2% and 6% loadingse0
- Comparator
- PMe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“When comparing only application of biochar or PM, biochar was the more favorable soil amendment at both 2% and 6% loadings”
e1“basil ( Ocimum basilicum ) growth in sandy soil”
Claim · model-written summary
Biochar enhanced basil uptake of beneficial nutrients.
- Taxon
- basilOcimum basilicume1
- Treatment
- Biochare0
- Outcome
- plant uptake of beneficial nutrientse0
- Direction
- enhancinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Biochar was also effective at enhancing plant uptake of beneficial nutrients”
e1“basil ( Ocimum basilicum ) growth in sandy soil”
Claim · model-written summary
Biochar immobilized soil Al.
- Taxon
- basilOcimum basilicume1
- Treatment
- Biochare0
- Outcome
- Al, which is detrimental, in the soile0
- Direction
- immobilizinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Biochar was also effective at enhancing plant uptake of beneficial nutrients, while immobilizing Al, which is detrimental, in the soil”
e1“basil ( Ocimum basilicum ) growth in sandy soil”
The same questions in other papers
biochar · nutrient: content · Ocimum basilicum (basil)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
biochar · growth · Ocimum basilicum (basil)Positive and negative results
9 papers in the same direction as this paper · 1 in the opposite direction
- positive
- positive
- negative
7 papers more in this group
See all 11 papers →biochar · physiology: oxidative · Ocimum basilicum (basil)Results agree
1 paper in the same direction as this paper
- positive
biochar · physiology: water · Ocimum basilicum (basil)Results agree
1 paper in the same direction as this paper
- positive
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.