Roof greening light host material made from industrial and agricultural wastes

The invention provides a roof greening light host material made from industrial and agricultural wastes and is characterized in that the industrial and agricultural wastes serve as the major ingredients to prepare a light roof greening planting substrate; the substrate is a compound with the following main materials: flyash, coal cinder, straw grains, garden wastes and yellow soil; the proportions of the materials are as follows: 11-20% of flyash, 10-22% of coal cinder, 20-25% of straw grain, 20-32% of garden waste and 18-20% of yellow soil. In the invention, the common industrial and agricultural wastes are applied to the light roof greening planting substrate, which facilitates reduction of the cost of roof greening materials, improves comprehensive utilization level of natural resources and promotes cyclic utilization of the industrial and agricultural wastes and protection of the natural environment. The material of the invention has the advantages of few component types, easily available materials, low cost, environmental protection and high efficiency and suitability for large-scale promotion throughout the country.