TY - JOUR
T1 - Influence of biochar produced from different pyrolysis temperature on nutrient retention and leaching
AU - Cheng, Hongguang
AU - Jones, Davey L.
AU - Hill, Paul
AU - Bastami, Mohd Saufi
AU - Tu, Cheng long
PY - 2018/5/12
Y1 - 2018/5/12
N2 - Biochar application has been received much attention because biochar can improve the fertilizer utilization efficiency of soil. However, the effect of biochar produced at different temperature on the nutrient retention and leaching remains poorly understood. In this study, we observed the nutrients leaching from a sandy loam soil amended with biochar produced at different temperature. The properties of biochars produced from wheat straw at four contrasting pyrolysis temperatures (250, 350, 450, and 550°C) showed that increasing pyrolysis temperature increased pH value and specific surface area but reduced the electrical conductivity and cation exchange capacity. With the temperature increased, the nitrogen loss was significant decreased (p > 0.05) from 109.6 mg to 53.3 mg in biochar amended soil. However, dissolved organic carbon (DOC), available P, Na and K were significant increased (p > 0.05). These results demonstrate that the pyrolytic temperature has a great influence on biochar properties, which in turn affect the leaching of the available nutrients.
AB - Biochar application has been received much attention because biochar can improve the fertilizer utilization efficiency of soil. However, the effect of biochar produced at different temperature on the nutrient retention and leaching remains poorly understood. In this study, we observed the nutrients leaching from a sandy loam soil amended with biochar produced at different temperature. The properties of biochars produced from wheat straw at four contrasting pyrolysis temperatures (250, 350, 450, and 550°C) showed that increasing pyrolysis temperature increased pH value and specific surface area but reduced the electrical conductivity and cation exchange capacity. With the temperature increased, the nitrogen loss was significant decreased (p > 0.05) from 109.6 mg to 53.3 mg in biochar amended soil. However, dissolved organic carbon (DOC), available P, Na and K were significant increased (p > 0.05). These results demonstrate that the pyrolytic temperature has a great influence on biochar properties, which in turn affect the leaching of the available nutrients.
KW - fertilizer efficiency
KW - nitrogen
KW - phosphorus
KW - Pyrolysis temperature
KW - sorption
UR - http://www.scopus.com/inward/record.url?scp=85030681834&partnerID=8YFLogxK
U2 - 10.1080/03650340.2017.1384545
DO - 10.1080/03650340.2017.1384545
M3 - Article
AN - SCOPUS:85030681834
SN - 0365-0340
VL - 64
SP - 850
EP - 859
JO - ARCHIV FUR ACKER UND PFLANZENBAU UND BODENKUNDE-ARCHIVES OF AGRONOMY AND SOIL SCIENCE
JF - ARCHIV FUR ACKER UND PFLANZENBAU UND BODENKUNDE-ARCHIVES OF AGRONOMY AND SOIL SCIENCE
IS - 6
ER -
