Abstract
Soil organic carbon (SOC) can be accumulated through various organic inputs such as organic fertilizers, compost, and biochar.While organic fertilizers are effective in supplying nutrients, they have limitations in stable carbon sequestration compared to biochar.Therefore, this study aimed to determine the optimal mixing ratio of organic fertilizer and biochar that can supply nutrients while ensuring sustained and stable carbon sequestration.The growth of lettuce, soil chemical properties, and soil carbon sequestration were evaluated through a pot experiment based on the mixing ratios of organic fertilizer and biochar derived from agricultural waste.The treatments in the pot experiment included no fertilizer (NF), inorganic fertilizer (IF), and biochar mixed organic fertilizer (BAOF), mixing ratios of organic fertilizer:biochar = 100:0, 90:10, 80:20, 70:30.The results showed that leaf length and width of lettuce increased by 1.70 -1.84 and 1.58 -1.78 times, respectively, in BAOF treatments compared to NF.The highest yield was observed in BAOF (100:0).The organic matter content increased with higher mixing ratio of biochar.SOC stock was observed in the following order: 11.93 (BAOF70:30) > 11.22 (BAOF80:20) > 10.35 (BAOF90:10) > 10.26 (BAOF100:0) t C ha -1 .In conclusion, mixing biochar with organic fertilizers promoted lettuce growth and led to increased soil carbon sequestration.These results indicated that the optimal mixing ratio was determined to be BAOF70:30.
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Claims 6
Claim · model-written summary
Lettuce leaf length increased by 1.70-1.84 times in biochar-mixed organic fertilizer treatments compared with no fertilizer.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- BAOF treatmentse0
- Outcome
- leaf lengthe0
- Direction
- increasede0
- Value
- 1.70 -1.84e0
- Comparator
- NFe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf length and width of lettuce increased by 1.70 -1.84 and 1.58 -1.78 times, respectively, in BAOF treatments compared to NF”
Claim · model-written summary
Lettuce leaf width increased by 1.58-1.78 times in biochar-mixed organic fertilizer treatments compared with no fertilizer.
- Taxon
- lettuceLactuca sativae0
- Treatment
- BAOF treatmentse0
- Outcome
- widthe0
- Direction
- increasede0
- Value
- 1.58 -1.78e0
- Comparator
- NFe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“leaf length and width of lettuce increased by 1.70 -1.84 and 1.58 -1.78 times, respectively, in BAOF treatments compared to NF”
Claim · model-written summary
The highest lettuce yield was observed with the 100:0 biochar-mixed organic fertilizer treatment.
- Taxon
- lettuceLactuca sativae1
- Treatment
- BAOF (100:0)e0
- Outcome
- yielde0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The growth of lettuce”
e0“The highest yield was observed in BAOF (100:0)”
Claim · model-written summary
Soil organic matter content increased with a higher biochar mixing ratio.
Not reportedTaxonComparator
Verbatim
e0“The organic matter content increased with higher mixing ratio of biochar”
Claim · model-written summary
SOC stock was highest at BAOF70:30 and declined through 80:20, 90:10 and 100:0.
- Outcome
- SOC stocke0
- Value
- 11.93 (BAOF70:30) > 11.22 (BAOF80:20) > 10.35 (BAOF90:10) > 10.26 (BAOF100:0) t C ha -1e0
Not reportedTaxon
Verbatim
e0“SOC stock was observed in the following order: 11.93 (BAOF70:30) > 11.22 (BAOF80:20) > 10.35 (BAOF90:10) > 10.26 (BAOF100:0) t C ha -1”
Claim · model-written summary
The authors determine the optimal organic fertilizer:biochar mixing ratio to be BAOF70:30.
- Taxon
- lettuceLactuca sativae1
- Outcome
- optimal mixing ratioe0
- Value
- BAOF70:30e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The growth of lettuce”
e0“the optimal mixing ratio was determined to be BAOF70:30”
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