Interactive Effects of Biochar in Soil Related to Feedstock and Pyrolysis Temperature

Abstract

: Biochar application to agricultural soil is a new management strategy for its potential role in soil quality improvements. The aim of this study was to evaluate the effects of biochar derived from coffee husk and corn cob produced at 350 and 500°C pyrolysis temperature on soil quality characteristics. The produced biochars were applied at rates of 0, 5, 10, 15t ha and mixed with acidic soil then incubated in laboratory for 1 three months at ambient temperature. The treatments were arranged in a completely randomized design with three replications. Results indicated a significant increase in soil pH, OM, OC, TN, available P, CEC and basic cations when compared with control. The highest values were recorded when CHB500 applied at a rate of 15 t ha . In summary, the results of this study highlight biochars improved the quality of soil, with benefit 1 to agriculture