Cultivation medium taking fly ash as main raw material and preparation method thereof

Abstract

A cultivation medium taking fly ash as a main raw material comprises the fly ash, wormcast, cassava dregs, vermiculite and a buffering agent, wherein the volume percentages of the fly ash, the wormcast, the cassava dregs, the vermiculite and the buffering agent in the total volume thereof are respectively as follows: 10-50%, 10-60%, 4-30%, 5-10%, and 0.2-10%. A preparation method of the cultivation medium comprises the following steps: (1) mixing the fly ash, the wormcast, the vermiculite and the cassava dregs according to the amount of a formula, then adding the buffering agent with the amount of the formula and fully mixing; (2) adding water into a mixture obtained in the step (1), forcibly extruding and kneading in the process of mixing to form a granular structure, mixing evenly, and controlling the moisture content to be 50%-80%; (3) grinding the extruded mixture, and sieving to form the medium suitable for the growth of crops. The medium product prepared by the invention is low in cost, good in effect, easy in technology, and suitable for being used for seedling raising and cultivation of various crops.

Description

technical field [0001] The invention relates to the preparation of a cultivation substrate with fly ash as the main raw material, belonging to the field of substrate cultivation. Background technique [0002] Matrix cultivation is a kind of soilless cultivation. At present, 90% of the soilless cultivation in the world adopts the method of matrix cultivation. Substrate cultivation has the advantages of soil cultivation, sand cultivation, hydroponics and fog cultivation, and at the same time avoids their respective defects, and has a good development trend and application prospect. my country's soilless cultivation started relatively late, but in recent years, the research and application of soilless cultivation technology in my country has developed rapidly, not only the area is on the rise, but also the quality of the substrate is also rising. At present, large-scale application of cultivation substrates has been carried out in the cultivation of tomato, cucumber, lettuce, ...

AI Technical Summary

Problems solved by technology

[0004] In terms of substrate production and application, some manufacturers in my country have produced cultivation substrates, but the quality is not stable enough and the safety is not high.

In terms of production, for the planting of famous, special and high-quality crop varieties, a considerable proportion of imported substrates is still used, and the cost is relatively high

Images