Nutrient water-retaining mat for artificial cultivation of moss crusts

A preparation method of a nutrient water-retaining mat for artificial cultivation of moss crusts, comprising the following steps:

• step 1, mixing grass seeds, soil, fertilizer and a water-retaining material in a mass ratio of 1:1:2:2 to obtain composite nutrient planting soil;
• step 2, laying a layer of degradable plastic net on a surface of the composite nutrient planting soil, sprinkling a layer of waste natural fibers on a surface of the layer of degradable plastic net, and scattering the composite nutrient planting soil on the layer of waste natural fibers;
• step 3, repeating the step 2, wherein a number of laying layers is more than two;
• step 4, sprinkling water to keep the composite nutrient planting soil moist until grass grows to more than 20 cm, leaving 2-4 cm of stubble for cutting, shoveling down along the layer of degradable plastic net at a bottom layer, air drying and compacting to obtain the nutrient water-retaining mat;
• and
• step 5, spraying water onto and moistening the nutrient water-retaining mat, mixing moss propagules, chitosan, and additional soil in a mass ratio of (0.5-1):(3-5):10, adding water to prepare uniform mud, and spraying the uniform mud onto a surface of the nutrient water-retaining mat for the artificial cultivation of the moss crusts.