1. It can improve the physical characteristics of the soil, improve the soil granular structure, reduce the compactness of the soil, and achieve a good condition;

2. Increase the soil's cation exchange capacity and fertilizer retention capacity to adsorb and exchange plant nutrients, improve the slow-effectiveness of fertilizers, and increase the soil's ability to retain fertilizers and water;

3. Provide beneficial microorganism activities in the soil;

4. Promote the decomposition of man-made (e.g. pesticides) or natural toxic substances and effects;

5. Increase the soil's ability to balance and neutralize soil PH;

6. Dark color helps to absorb heat and early spring planting;

7. Directly affects cell metabolism, improves crop respiration and photosynthesis, and enhances crop resistance, such as resistance to drought, cold and disease;

8. Release the nutrients needed by plants after decomposition;

9. Strengthen the roots and increase the yield, improve the quality of crops and increase the sweetness of melons and fruits.