Preparation method of cultivation substrate used for three-dimensional afforesting

Abstract

The invention relates to a preparation method of a cultivation substrate used for three-dimensional afforesting. The method comprises the steps of: first, crushing plant waste to particles of 2cm; then adding sewage sludge or animal manure in an amount of 5-30% by weight, based on the weight of the plant waste; mixing the plant waste and the animal manure and piling the mixture to be piles with a height of 0.60m-1.5m, and volume of no less than 2 cubic meters; compost maturing the mixture for 20-40 days to obtain a compost product with water content less than 38%; and according to the requirements of national forestry standard 'organic media for greening use', based on the weight of the compost product, adding 0-0.5% humic acid and / or 0-20% perlite, and / or 0-0.5% polyacrylamide to obtain the cultivation substrate which meets the cultivation substrate requirements in the national forestry standard 'organic media for greening use' (LY / T1970-2011) issued in 2011. The method promotes the recycling of waste, and the cultivation substrate has great social, economical and ecological benefits and can replace nature soil for planting. The cultivation substrate can especially satisfy the requirements of roof, suspension, verticality, etc. three-dimensional afforesting for soil fertility, soil composition and water retention and fertilizer conservation.

Description

technical field [0001] The invention relates to a method for preparing a cultivation substrate for three-dimensional greening, in particular to a method for preparing a cultivation substrate with greening plant waste. It belongs to the fields of urban landscaping, municipal management and agricultural technology. Background technique [0002] With the rapid development of urban greening, fertile topsoil resources in cities are becoming more and more scarce, so people use artificial cultivation soil instead of topsoil for urban greening. For example, the invention that we have successfully developed and obtained the patent right is "Method for preparing cultivation soil with sludge, branches and leaves and mineralized garbage", and the invention with the patent number 200610118501.5 is to use mineralized garbage, domestic sewage plant sewage The cultivation soil obtained by the reasonable ratio of mud and branches and fallen leaves compost products has a slightly acidic pH o...

AI Technical Summary

Problems solved by technology

However, this patented product is mainly used for cultivation soil for green land planting, which is directly used to replace natural soil for green planting, and cannot meet the planting needs of special three-dimensional greening such as vertical walls, roofs or suspensions, because it is used for roofs, vertical Cultivation soil for wall or other hanging lawns, grass flowers, small shrubs and other green plants has higher requirements (lighter texture, higher nutrient content, better fertilizer retention and moisturizing effect)