Agricultural and forestry waste includes crop straw, peels, leaves, branches and other organic waste. Biochar, also known as char or biomass char, can be obtained by carbonizing these agricultural and forestry wastes. Biochar has many beneficial properties, making it a valuable resource.

1. In agriculture, biochar can be used as a soil conditioner. It has porosity, high specific surface area and good adsorption properties, which can increase soil organic matter content, improve soil water and fertilizer retention capacity, improve soil structure, promote soil microbial activity, thereby increasing crop yield and quality. In addition, biochar can also be used as a fertilizer carrier to load nutrients on biochar to achieve slow-release fertilizer effects and reduce the use of chemical fertilizers.

2. In industry, biochar can be used as raw material to produce activated carbon, carbon black, electrode materials, etc. These products are widely used in chemical industry, environmental protection, energy and other fields. For example, activated carbon can be used in fields such as water treatment, air purification, desulfurization and denitrification; carbon black can be used for coloring and enhancement in rubber, plastics, ink and other industries; electrode materials can be used in the manufacturing of electronic products such as capacitors and batteries.

3. In terms of energy, biochar can be used as a form of utilization of biomass energy. It can be burned directly as fuel, or it can be further processed and converted into energy products such as bio-oil and bio-gas. These energy products can be used in fields such as power generation and heating to realize the energy utilization of agricultural and forestry waste.

Agricultural and forestry waste can become valuable resources after carbonization and has broad application prospects. By rationally utilizing these resources, we can not only solve the problem of agricultural and forestry waste disposal, but also promote sustainable agricultural development, promote industrial transformation and upgrading, and improve energy efficiency.