Rice Husk Biochar for Rice Based Cropping System in Acid Soil: The Characteristics of Rice Husk Biochar and lts Influence on the Properties of Acis Sulfate Soils and Rice Growth in West Kalimantan, Indonesia by admin | Oct 15, 2020 | Jurnal Journal of Agricultural Science.Vol. 2, No. 1, March 2010. Canadian Center of Science and Education