Explanation

It is a kind of material that is mainly used to improve soil properties so as to be more suitable for plant growth, rather than providing plant nutrients. For example, soil loosening agent, sand fixing agent, fertilizer increasing agent, disinfectant, acid and alkali reducing agent, soil conditioners, soil conditioner, soil conditioner, water retaining agent, soil improvement regulator, etc. are collectively referred to as soil conditioners. soil conditioners uses plant residues, peat Lignite is used as raw material, from which humus, cellulose, lignin, polysaccharide carboxylic acid and other substances are extracted as cementitious agent for agglomeration soil particles, or macromolecule polymer synthesized by simulating the molecular structure and properties of natural agglomerated cementitious agent. There are many kinds of soil conditioners, and different improvers have different functions. For example, the wheat bran coffee slag sawdust chicken manure composition improver, urban sewage sludge and pulverized coal ash, zeolite, bentonite, etc. can significantly change the soil aggregate structure, increase the soil porosity, reduce the soil capacity, increase the water infiltration rate, increase the saturated hydraulic conductivity, retain water, reduce evaporation, and effectively improve the precipitation utilization efficiency; macromolecule polymer soil conditioners can significantly increase the content of soil water stable aggregates, improve soil structure, and increase water erosion resistance; Zeolite, bentonite, vermiculite and bentonite can effectively improve the soil structure, increase the cations in the soil, and some of the original heavy metals in the soil are exchanged and adsorbed, and some are fixed; pitch emulsion can obviously increase ground temperature; Organic carbon soil conditioners can increase the number and activity of soil microorganisms, improve enzyme activity and inhibit the activities of fungi, bacteria and actinomycetes, which greatly reduces the spread of soil diseases.

Classification