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Title Functionalized biochar from waste as a slow-release nutrient source: Application on tomato plants
ID_Doc 26776
Authors Rosa, D; Petruccelli, V; Iacobbi, MC; Brasili, E; Badiali, C; Pasqua, G; Di Palma, L
Title Functionalized biochar from waste as a slow-release nutrient source: Application on tomato plants
Year 2024
Published Heliyon, 10, 8
DOI 10.1016/j.heliyon.2024.e29455
Abstract Licorice processing waste was pyrolyzed at different temperatures (500 and 700 degrees C) to obtain biochar (BC500 and BC700) for use as a slow -release fertilizer on Solanum lycopersicum . The materials were characterized through BET analysis, SEM, elemental analysis, pH zc , and pyrolysis temperature effect was evaluated. The biochars were functionalized by the impregnation method to enrich them with nitrogen, phosphorus, and potassium (NPK), and desorption tests were performed in aqueous solution at different pHs (5 and 7). The pseudo -second -order model described well the release of all 3 macronutrients tested, BC500 was found to have slower release kinetics due to smaller pore size, reaching adsorption/desorption equilibrium after 14 days, compared with 10 for BC700, K des were lower in all 3 cases and NPK content was higher, initial pH did not change the release kinetics. BC500 was selected as an agricultural soil conditioner by testing at both different dosages of BC (0 - 25 %) and different NPK ratios (3:1:4 and 4:1:3). The treatment significance was evaluated. The best treatment resulted in BC dosage of 25 % nutrient ratio 4:1:3 which increased, compared to the control, total chlorophyll content (+38 %) and carotenoids (+15 %).
Author Keywords Functionalized biochar; Slow-release fertilizers; Desorption; Plant nutrition; Circular economy; Solanum lycopersicum
Index Keywords Index Keywords
Document Type Other
Open Access Open Access
Source Science Citation Index Expanded (SCI-EXPANDED)
EID WOS:001229331200002
WoS Category Multidisciplinary Sciences
Research Area Science & Technology - Other Topics
PDF https://doi.org/10.1016/j.heliyon.2024.e29455
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