The studies indicated that the choice of suitable pyrolysis variant and biochar Clearly, rice husk biochar is a promising avenue to fertilise the soil with P and Zn and increase crop productivity in Timor‐Leste. Biochar is a carbon-rich product from the [PDF] Rice Husk Biochar for Rice Based Cropping System in Acid SoilThe Characteristics of Rice Husk Biochar and Its Influence on the Properties of Acid Sulfate //1/ Abstract. Rice husk biochar (RHB) account for% of rice weight and it contains%