1.Improve the soil.
(1)Through the proliferation of beneficial bacteria, a large number of beneficial bacteria form a dominant population around the roots of plants, inhibiting the life activities of other harmful bacteria.
(2)Quickly decompose soil organic matter, promote the formation of soil aggregates, and loosen the soil through the activity of beneficial bacteria, and the soil's fertilizer retention, fertilizer supply, water retention, water supply and air permeability are well regulated.
(3) Decompose pesticide residues in the soil to avoid pesticide residues causing phytotoxicity to the next season crops. It also decomposes harmful substances discharged through roots during plant growth. Commonly used are Bacillus subtilis, Bacillus licheniformis and so on.