Abstract
In present study we evaluated the effects of fine charcoal (biochar) previously treated with water and acids, with different substrates in the formation of eggplant seedlings. The experiment was carried at the University of Mato Grosso, in Nova Xavantina county, Mato Grosso state, Brazil. The experimental design was randomized blocks in factorial 3 x 4, with factors consisting of three treatments of the substrate (compost of cotton waste, Oxisol (land) + sawdust and Oxisol (land) + cattle manure) associated with 0% (control) and 40% of biochar with three different types of chemical activation for biochar (water, sulfuric acid and nitric acid) were used, with four replications. At 55 days after sowing (DAS) was evaluated the number of true leaves, root length, diameter and stem length, plant height and fresh and dry weight of shoot. The results showed that highest number of leaves occurred with substrate utilization of soil + cattle manure in the presence of HNO3- treated with biochar. The highest root length was found associated with composite cotton to 40% of biochar treated with H2SO4-. The shorter length and diameter were recorded using the substrate soil + saw-dust associated with biochar independent of the chemical treatment used. The use of land associated with cattle manure + 40% HNO3- treated with biochar showed the highest values of fresh and dry weight. Generally not recommended to use the substrate soil + saw-dust with or without biochar for the production of eggplant seedlings.
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Claims 5
Claim · model-written summary
The highest number of eggplant leaves occurred with soil plus cattle manure and HNO3-treated biochar.
- Taxon
- eggplant
Solanum melongenae0 - Treatment
- HNO3- treated with biochare1
- Outcome
- number of leavese1
- Direction
- higheste1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluated the effects of fine charcoal (biochar) previously treated with water and acids, with different substrates in the formation of eggplant seedlings”
e1“The results showed that highest number of leaves occurred with substrate utilization of soil + cattle manure in the presence of HNO3- treated with biochar”
Claim · model-written summary
The highest root length occurred with composite cotton substrate and 40% biochar treated with H2SO4-.
- Taxon
- eggplantSolanum melongenae0
- Treatment
- composite cotton to 40% of biochar treated with H2SO4-e2
- Outcome
- root lengthe2
- Direction
- higheste2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluated the effects of fine charcoal (biochar) previously treated with water and acids, with different substrates in the formation of eggplant seedlings”
e2“The highest root length was found associated with composite cotton to 40% of biochar treated with H2SO4-”
Claim · model-written summary
Soil plus sawdust with biochar gave shorter length and diameter of eggplant seedlings.
- Taxon
- eggplantSolanum melongenae0
- Treatment
- soil + saw-dust associated with biochare3
- Outcome
- length and diametere3
- Direction
- shortere3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluated the effects of fine charcoal (biochar) previously treated with water and acids, with different substrates in the formation of eggplant seedlings”
e3“The shorter length and diameter were recorded using the substrate soil + saw-dust associated with biochar independent of the chemical treatment used”
Claim · model-written summary
Cattle manure plus 40% HNO3-treated biochar gave the highest fresh and dry weight of eggplant seedlings.
- Taxon
- eggplantSolanum melongenae0
- Treatment
- cattle manure + 40% HNO3- treated with biochare4
- Outcome
- fresh and dry weighte4
- Direction
- highest valuese4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluated the effects of fine charcoal (biochar) previously treated with water and acids, with different substrates in the formation of eggplant seedlings”
e4“The use of land associated with cattle manure + 40% HNO3- treated with biochar showed the highest values of fresh and dry weight”
Claim · model-written summary
The soil plus sawdust substrate is generally not recommended for producing eggplant seedlings.
- Taxon
- eggplantSolanum melongenae5
- Outcome
- not recommended to use the substrate soil + saw-duste5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Generally not recommended to use the substrate soil + saw-dust with or without biochar for the production of eggplant seedlings”
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