Advances in research on effects of biochar on soil nitrogen and phosphorus

Abstract

In the context of global research, soil non-point source pollution is becoming more and more severe. Biochar is used as a soil amendment to repair soil. Therefore, research on biochar has received extensive attention. According to relevant literature reports, biochar has strong adsorption performance, and according to its nature, it can improve the availability of nitrogen and phosphorus in crops and fix nitrogen and phosphorus in soil. Also, biochar can also improve soil structure and reduce the migration of N and P with soil media. The research mechanism of biochar is distinct. The article cites the results of the majority of researchers and explains the effects of different biochars. Biochar has a certain promoting effect on nitrogen, phosphorus adsorption, conversion and leaching. In the future, we should strengthen the prospect of biochar in the treatment of soil environment and sustainable development of the environment.