Preparation method of coconut velvet substrate vegetable culture substrate

Abstract

The invention discloses a preparation method of a coconut velvet substrate vegetable culture substrate, belonging to the field of culture substrates. The preparation method comprises the following steps: smashing cocoanut shells, and then adding disodium ethylene diamine tetraacetate; separating to obtain filter residues, and then adding hydrogen peroxide and magnesium sulfate; separating again, and then taking supernatant liquid; adjusting the pH value, and then heating for concentrating; adding an ethanol solution, and standing to obtain semi-fibrosis coconut velvet substrate precipitates; and soaking the semi-fibrosis coconut velvet substrate and dehydrated egg white into the prepared nutrient solution, and then baking to obtain the coconut velvet substrate vegetable culture substrate. The coconut velvet substrate prepared by the method disclosed by the invention has better water absorptivity, air permeability and drainage property and has very strong water retaining capacity and fertilizer holding capacity, thereby being favorable for retention of water and permeation of nutrient solutions; the coconut velvet substrate is prepared from waste materials processed by coconut fruit shells, so that the cost is low; and the coconut velvet substrate is a fibrous matter and has a relatively good structure.

Description

technical field [0001] The invention discloses a method for preparing a coconut velvet substrate vegetable cultivation substrate, which belongs to the field of cultivation substrates. Background technique [0002] Substrate cultivation is a soilless cultivation method that fixes plant roots with a solid substrate and absorbs nutrient solution and oxygen through the substrate. Vegetable matrix cultivation not only effectively solves the contradiction between protected agriculture and open field agricultural production, but also reduces the occurrence of soil-borne diseases, realizes high absorption of water and fertilizer by vegetables, and shortens the growth cycle of protected vegetables. Nowadays, plant biotechnology has developed into an important part of the new technology revolution, and the application of biotechnology in various production fields has received huge economic benefits. Among them, the rapid propagation of seedlings by tissue culture is the most widely u...

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention: for the hydrophobicity of the matrix caused by the existence of wax on the surface of many substrates at present, most of the water will be lost with the large pores of the substrate and the four walls of the container when watering, and it takes a lot of labor to fully stir it. The substrate is gradually moistened, once the substrate loses water and dries, it is easy to form hard lumps, and the disadvantages of poor rewetability provide a method for preparing the coconut velvet substrate vegetable cultivation substrate. The invention adds disodium edetate after crushing the coconut shell Solution, after separating the filter residue, add hydrogen peroxide and magnesium sulfate, take the supernatant after separation, adjust the pH value and then heat and concentrate, add ethanol solution to it and let it stand to get the semi-fibrous coir matrix precipitation, the semi-fiber Coconut velvet matrix and dehydrated egg white are put into the prepared nutrient solution, soaked and then dried to obtain a coconut velvet matrix vegetable cultivation matrix. The coconut velvet matrix made by the invention has better water absorption, air permeability and drainage, and water retention and durability. The fertilizer ability is very strong, so it helps to hold water and penetrate the nutrient solution, and it is a waste material after processing the coconut fruit shell, which is a kind of fiber material, so it will not be broken and has a better structure