With the rapid combination of environmental protection and economic development, the comprehensive utilization of crop straw resources is of great significance for promoting farmers' income increase, environmental protection, resource conservation and the sustainable development of the agricultural economy. The application of straw pellet machine has enabled crop straw to achieve a true closed-loop mode.

Crop straw is a very valuable biomass energy resource in the agricultural ecosystem. Biomass pellet fuel is essentially the direct combustion application of biomass energy and the processing and utilization of biomass. Direct combustion methods can be classified into four situations: stove combustion, boiler combustion, waste combustion and solid fuel combustion.

Among them, solid fuel combustion is the technology of straw pellet machines. It solidifies the biomass into shape and then uses traditional coal-fired equipment for combustion. Its advantage lies in making full use of biomass energy to replace coal, reducing the emissions of CO2 and SO2, which is conducive to environmental protection and controlling the emission of greenhouse gases, slowing down climate deterioration and reducing the occurrence of natural disasters. After complete combustion, the biomass pellet fuel can produce wood ash which can be returned to the fields and provide sufficient potassium fertilizer for newly sown crops.

From sowing to harvesting, from processing to burning and reuse, the straw pellet machine has enabled the crop straw to achieve a true closed-loop mode.