Non-ground three-dimensional afforesting organic composite substrate

Abstract

Belonging to the technical field of horticulture, the invention discloses a non-ground three-dimensional afforesting organic composite substrate, which is composed of biosynthetic peat, rice husk carbon residue, cassava leftover-agricultural organic waste mixture particles subjected to biological fermentation composting treatment, and coconut chaff shred. The afforesting substrate comprises, by volume, 2-3 parts of biosynthetic peat, 2-3 parts of rice husk carbon residue, 3-5 parts of cassava leftover-agricultural organic waste mixture fermented particles, and 1-2 parts of coconut chaff shred. In addition, every cubic volume is added with 0.5-1kg of a ternary compound fertilizer. The substrate has the following physicochemical indexes of: a particle size of less than or equal to 8mm, a length of less than or equal to 25mm, a water content of 40-50%, total porosity of 65-75%, a volume-weight of 0.35-0.5g / ml, a coarse organic matter content of more than or equal to 30% in dry substrate, a N+P2O5+K2O total nutrient content of 2-4%, an EC value of less than or equal to 3mS / cm, a gas-water ratio of 1:2-4, and pH of 5.5-7.0. The substrate is a dark brown or black brown particle and threadlike solid mixture, and has no peculiar smell. The afforesting substrate produced by the invention has the advantages of loose texture, light specific weight and high nutrition, and is very suitable for urban trunk road guardrails, overpasses and other non-ground three-dimensional afforesting.

Description

technical field [0001] The invention relates to a horticultural matrix, in particular to a non-ground three-dimensional greening organic composite matrix, which belongs to the field of soilless cultivation horticultural matrix. Background technique [0002] Greening is an essential and important engineering project for urban roads, residential areas, institutions, enterprises, schools, etc. Most of them are planted on the ground, also known as ground greening, but some buildings, structures, urban main roads, highway guardrails, and overpasses Greening is also required on vertical surfaces, roof surfaces, walls, building balconies, overpasses, ramps, and other spatial structures. These greenings are called non-ground greening or three-dimensional greening, vertical greening, which corresponds to ground plane greening and is in three-dimensional space. Use various site conditions and facilities above the ground to plant some green plants to improve the greening rate and green...

AI Technical Summary

Problems solved by technology

The cost of growth substrate in non-ground greening accounts for 20-30% of the total cost. In the past, peat charcoal was generally used or imported directly from abroad, but the price is very expensive and the cost is high. Therefore, improving the performance of the substrate and reducing the cost of the substrate are the main research and development in aerial greening. Direction of development

[0005] On April 1, 2015, CN104478518A disclosed the applicant "a lightweight substrate for aerial greening", which is mainly composed of fermented and decomposed vinegar residue, cassava residue and crop straw powder mixed materials, shredded coconut bran, plant ash, peat and Composed of perlite, but peat is a non-renewable resource, vinegar slag has strong acidity and high EC value, and it is difficult to process. On the basis of the original matrix, this application uses artificial biosynthetic peat to replace natural peat, and rice husk charcoal to replace plant ash and pearls rock, so that the physical and chemical properties and nutrients of the substrate are significantly better than the original substrate, and the production cost is also greatly reduced. Document retrieval found that artificial biosynthetic peat, chaff charcoal residue, potato grains and agricultural waste mixture were used as the main raw materials. There are no relevant reports in China on non-ground three-dimensional greening organic composite substrates such as coconut bran shreds as auxiliary materials