Characterization of soil amendment potential of 18 different biochar types produced by slow pyrolysis
Yazarlar (4)
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
Doç. Dr. Halil ERDEM
Tokat Gaziosmanpaşa Üniversitesi, Türkiye
| Makale Türü |
Özgün Makale
|
| Makale Alt Türü | Ulusal alan endekslerinde (TR Dizin, ULAKBİM) yayınlanan tam makale |
| Dergi Adı | Eurasian Journal of Soil Science |
| Dergi ISSN | 2147-4249 Scopus Dergi |
| Dergi Tarandığı Indeksler | TR DİZİN |
| Makale Dili | İngilizce |
| Basım Tarihi | 01-2019 |
| Cilt No | 8 |
| Sayı | 4 |
| Sayfalar | 329 / 339 |
| DOI Numarası | 10.18393/ejss.599760 |
| Özet |
| Feedstock type is the most dominant factor influencing the physical characteristics andchemical composition of biochar. The main purpose of this study was to characterize andcompare some of the physical and chemical properties of biochars produced by slowpyrolysis of 18 feedstocks, which are locally available agricultural residues. Moreover,elucidating the potential agronomic benefits of these biochars was the other objective of thestudy. Biochars were produced at 500 oC in an ingeniously developed reactor. The biocharswere characterized for specific surface area (SSA), field capacity (FC), wilting point (WP),plant available water content (AW), pH, electrical conductivity (EC), cation exchangecapacity (CEC), total carbon (C) and nitrogen (N), plant available phosphorus (P) andpotassium (K) concentrations. Considerable variation of characteristics among biocharsindicates the dominant impact of feedstock type on physical properties and chemicalcomposition of biochars. Total C contents were highly variable with values up to 91.9% forpine sawdust. Phosphorus and K in feedstocks were concentrated in the biochars and weretwo to four times higher in the biochars. The CEC of biochars varied from 79.5 cmol kg-1(pepper residues) to 5.77 cmol kg-1 (poplar sawdust). The CEC and SSA had a significantnegative correlation (P<0.01, r= -0.70) that probably be attributed to the loss of functionalgroups during pyrolysis. The results revealed that depending on the feedstock, somebiochars have potential to serve as nutrient sources as well as an additive to improve soilquality. |
| Anahtar Kelimeler |
| Agricultural residues | Biochar | Feedstock type | Physical and chemical properties | Soil quality |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| SCOPUS | 13 |
| TRDizin | 3 |
| Google Scholar | 22 |