2. Make organic fertilizer, put a lot of recycled straw on the pulverizer, make it into crumbs, and then transport it to the fertilizer plant. These straws can be turned into organic fertilizer after being treated by chemical fertilizer plants, and then returned to farmers' land.
3. Straw is an efficient and long-lasting raw material for light industry, textile and building materials, which can partially replace bricks, wood and other materials and effectively protect cultivated land and forest resources.
4. In order to make biomass fuel, straw can be processed into "straw coal" to be used as biomass fuel. This kind of coal burns without any smoke and dust, and the sulfur dioxide released is 5% of that of ordinary coal, which is both environmentally friendly and easy to use.
Extended data:
Harm of burning straw
1, increasing the content of CO2 in the air, the increase ratio of CO2 is much larger than burning ordinary trees.
2. Burning straw will reduce soil fertility and make cultivated land barren. Most of the nitrogen, sulfur and other elements contained in straw are converted into volatile substances or particles and enter the atmosphere, only some substances such as potassium are retained, and the loss of nutrient elements is serious, which is very unfavorable to soil fertility.
3. Increase the inhalable particles in the air, which are white powdery solids.
4, reduce the visibility of the air, and produce a lot of white solid smoke when burning straw. Because the solid is very small and floating in powder, it greatly affects the visibility of cities, highways, airports and other places.
5. Burning straw will take away soil moisture and destroy the water content of cultivated land, especially in the arid areas in the north.
6. Burning straw will destroy farmland biological community and burn a lot of soil microorganisms.
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