1. Requirements for soil

Although the requirements of cactus on soil are not particularly high, its growth will be better in suitable soil. Specifically, the requirements are mainly drainage and air permeability, preferably containing calcareous

2. Available materials

(1) Coarse sand: adding sand will make the overall air permeability better. Moreover, it also contains many trace elements, such as magnesium, iron and so on

(2) Red Jade soil: it can be used as the main preparation material and is an indispensable part. It is formed by the accumulation of volcanic ash. It is rich in phosphorus and potassium, and its air permeability is also very good

(3) Plant ash: it is also rich in phosphorus and potassium, with good air permeability. Moreover, it can inhibit bacteria

(4) Coal ash: it has water storage and good air permeability. It contains many potassium elements and trace elements. It is alkaline

(5) Volcanic stone: its water storage and air permeability are also very good, and it can sterilize. In addition, it can be used repeatedly

(6) Vermiculite: it has excellent air permeability and is sterile. It is recommended to use it when sowing and cutting

(7) Coconut bran: slightly acidic. It can be used when sowing

3. Specific preparation method

According to the above materials, they can be used together. There are many specific methods. For example, red jade soil, coarse sand and coconut bran can be used in the proportion of six to four to four. The results are all good