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المؤلفAmel, Ibn Ferjani
المؤلفJellali, Salah
المؤلفAkrout, Hanene
المؤلفLimousy, Lionel
المؤلفHamdi, Helmi
المؤلفThevenin, Nicolas
المؤلفJeguirim, Mejdi
تاريخ الإتاحة2023-10-11T06:18:59Z
تاريخ النشر2020-08-31
اسم المنشورEnvironmental Technology & Innovation
المعرّفhttp://dx.doi.org/10.1016/j.eti.2020.100885
الرقم المعياري الدولي للكتاب23521864
معرّف المصادر الموحدhttps://www.sciencedirect.com/science/article/pii/S235218642030314X
معرّف المصادر الموحدhttp://hdl.handle.net/10576/48414
الملخصBiochar is the solid by-product of biomass thermochemical conversion via pyrolysis technique. Biochar addition to croplands as an organic amendment can improve soil properties and increase agricultural productivity. However, these positive effects depend largely on biomass feedstock and pyrolysis conditions. In this study, nutrient release from biochars derived from the slow pyrolysis of exhausted grape marc (EGM) at 300, 400 and 500 °C (EGM300, EGM400 and EGM500) was investigated through five successive leaching assays in batch mode for a total duration of 10 days. Then, nutrient leaching/retention kinetics of an agricultural soil amended with EGM500 (1% and 5% w/w) was assessed under dynamic conditions in columns. The batch experiments showed that with the exception of P, the nutrient release efficiency from the three biochars significantly increased with the increase of the number of leaching trials. The highest released amounts were observed at the fifth leaching cycle for K, Ca, P and Mg, which were about 45.5%, 41.5%, 229.5% and 48.9% higher than those registered during the first leaching assay. Regarding the column release experiments, a biochar content of 5% in the agricultural soil resulted in an increase of water leached NO3− and K+ by about 181.4% and 521.3%, respectively, and a significant reduction in Na+ and Ca2+ transport as compared to unamended soil. In a second phase, outcomes of column feeding with a nutrient solution showed that PO43− and NO3− retention by biochar-amended soils is low. Thus, the use of EGM biochar as a slow release biofertilizer could be considered as a promising agricultural practice and a sustainable solution for biowaste management.
راعي المشروعThis work was funded by FERTICHAR, Tunisia project. FERTICHAR is funded through the ARIMNet2 (2017) Joint Call by the following funding agencies: ANR (France), HAO-DEMETER (Greece), MHESRT (Tunisia). ARIMNet2 has received funding from the European Union’s Seventh Framework Programme for research, technological development and demonstration under grant agreement no. 618127. The authors gratefully acknowledge the funding agencies for their support.
اللغةen
الناشرElsevier
الموضوعExhausted grape marc
Biochar
Nutrients
Leaching
Adsorption
Soil amendment
العنوانNutrient retention and release from raw exhausted grape marc biochars and an amended agricultural soil: Static and dynamic investigation
النوعArticle
رقم المجلد19
dc.accessType Open Access


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