Abstract
Use of biochar produced from biomass residues may improve physical, chemical, and biological conditions of soil, reduce greenhouse gas emissions, and increase crop yields. This study evaluated production of lettuce (Lactuca sativa L., cv. Babá de Verão) in a dystrophic Yellow Latosol (LAd) by adding biochar from the babassu palm (Attalea speciosa Mart.) rachis at 0, 10, 20, or 30 t∙ha−1 in pot culture, and growth and production of lettuce evaluated. Lettuce grown with 30 t∙ha−1 of biochar improved plant height, number of leaves, and total fresh mass. Rates that promoted greater accumulation of fresh mass of the aerial part, aerial part dry mass, fresh root mass, root dry mass, and total dry mass ranged between 17.3 and 27 t∙ha−1 of biochar. Use of biochar may be an alternative to improve physical and chemical conditions of LAd soil in successive crops of lettuce in pot culture. The correction of the LAd soil with increasing rates of biochar increased growth and yield of lettuce in pot culture.
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Claims 5
Claim · model-written summary
At 30 t∙ha−1 biochar, lettuce height, leaf number and fresh mass improved.
- Taxon
- Lettuce
Lactuca sativae0 - Treatment
- 30 t∙ha−1 of biochare0
- Outcome
- plant height, number of leaves, and total fresh masse0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lettuce grown with 30 t∙ha−1 of biochar improved plant height, number of leaves, and total fresh mass”
Claim · model-written summary
Biochar rates of 17.3 to 27 t∙ha−1 promoted greater aerial fresh and dry mass and root fresh mass.
- Taxon
- lettuceLactuca sativat0
- Treatment
- 17.3 and 27 t∙ha−1 of biochare0
- Outcome
- fresh mass of the aerial part, aerial part dry mass, fresh root masse0
- Direction
- greatere0
- Value
- 17.3 and 27 t∙ha−1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rates that promoted greater accumulation of fresh mass of the aerial part, aerial part dry mass, fresh root mass, root dry mass, and total dry mass ranged between 17.3 and 27 t∙ha−1 of biochar”
t0“Lettuce”
Claim · model-written summary
Biochar rates of 17.3 to 27 t∙ha−1 promoted greater root dry mass and total dry mass.
- Taxon
- lettuceLactuca sativat0
- Treatment
- 17.3 and 27 t∙ha−1 of biochare0
- Outcome
- root dry mass, and total dry masse0
- Direction
- greatere0
- Value
- 17.3 and 27 t∙ha−1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rates that promoted greater accumulation of fresh mass of the aerial part, aerial part dry mass, fresh root mass, root dry mass, and total dry mass ranged between 17.3 and 27 t∙ha−1 of biochar”
t0“Lettuce”
Claim · model-written summary
Increasing biochar rates increased lettuce growth and yield in pot culture.
- Taxon
- lettuceLactuca sativae0
- Treatment
- increasing rates of biochare0
- Outcome
- growth and yielde0
- Direction
- increasede0
- Setting
- pot culturee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The correction of the LAd soil with increasing rates of biochar increased growth and yield of lettuce in pot culture”
Claim · model-written summary
The authors proposed biochar for improving LAd soil in successive lettuce pot crops.
- Taxon
- lettuceLactuca sativae0
- Outcome
- Use of biochar may be an alternativee0
- Qualifier
- successive crops of lettuce in pot culturee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Use of biochar may be an alternative to improve physical and chemical conditions of LAd soil in successive crops of lettuce in pot culture”
The same questions in other papers
biochar · growth · Lactuca sativa (garden lettuce)Results differ
40 papers in the same direction as this paper · 11 in the opposite direction
- negative
- no effect
- negative
48 papers more in this group
See all 52 papers →biochar · yield · Lactuca sativa (garden lettuce)Results agree
16 papers in the same direction as this paper
- positive
- positive
- positive
13 papers more in this group
See all 17 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.