Soilless culture mainly comprises the steps of preparing a nutrient solution for plant growth with chemical reagents according to the nutrient elements required for plant growth, and fixing plants, wherein the supporting facilities for the nutrient solution, including a distribution system, a circulating system, a monitoring system and the like are needed, the unit area investment is large, the operation is difficult, the product cost is high, so that the soilless culture is not suitable for real production. The existing soilless culture is mainly used for sight-seeing. An all-round nutrient-enriched matrix is in need, which has complete, rich and balanced nutrients, good permeability and high water retention and is prepared from agricultural production waste such as renewable sawdust, straws, bran residues, mushroom residues, pig manure, chicken manure, cattle manure and coal ash, to replace prepared chemical nutrient solution for proving nutrients to plants, and at the same time, the plants are fixed and soilless culture is carried out, so as to reduce equipment and facility investment of soilless culture, reduce operation links, reduce production cost and improve product quality, which is the crucial points and purposes of the invention.