Research progress of biochar on agricultural soil improvement

摘要

Biochar is an environmentally friendly soil amendment produced by pyrolysis of biomass such as agricultural and forestry wastes or animal manure under anaerobic or highly anaerobic conditions. Due to its good physical structure and rich surface properties, it has gradually become a research hotspot in agricultural soil improvement. Based on the existing research results at home and abroad, this article systematically summarizes the properties of biochar, the production process and the mechanism of agricultural soil improvement so far. At the same time, the future scientific research on the effect of biochar in the field of agricultural soil improvement is put forward, aiming to provide a reference for it in the field of agricultural soil improvement.