Spraying is to spray the uniformly mixed matrix material mixture on the rock surface with high pressure spraying machine. Ton. Spraying should be carried out from the front as much as possible, and the concave and convex parts and dead corners should be fully sprayed. The average thickness of spraying is 8 cm to 10 cm, and the wire mesh should be guaranteed to have a matrix material of 2 cm to 3 cm thick.
According to the lithology of the slope and the characteristics of the soil and rock of the slope, the spraying thickness can be adjusted as appropriate. If the proportion of soil quality on the slope is large, the parent material of soil formation is large, or the rock surface is obviously weathered, the spraying thickness can be reduced to 3 cm to 7 cm; if the slope is unweathered rock or fresh rock without cracks, the spraying thickness can be increased. to 10 cm to 15 cm to ensure that the substrate can provide sufficient nutrients and moisture for the growth of seedlings.

After the mixture is sprayed, the fiber nutrient mud containing grass seeds is evenly sprayed on the substrate mixture with a sprayer.

Covering non-woven fabrics: In order to ensure the germination rate of seeds, a non-woven fabric of 13 grams per square meter is used to cover from top to bottom. Secure with bamboo skewers or staples. Covering the non-woven fabric can play the role of water retention and heat preservation, and prevent the rainwater from scouring the slope during the germination period. Remove the non-woven fabric after the seedlings emerge.
Maintenance: After spraying, inspect the construction site every day to keep the substrate moist during the germination period of the grass seed, the period when the seedlings are established and the period when the seedlings recover and root. Control the amount of watering according to the weather, and carry out pest control and topdressing combined with watering, so that it can smoothly enter the period of vigorous growth. After the grass seedlings become flat and the seedlings grow normally (about three months later), the frequency of watering is gradually reduced to exercise the adaptability of the plants. But during the year, especially in the dry season, it needs to be cared for regularly depending on the weather to allow it to grow naturally.