How to deal with slag to keep flowers

Slag is the waste left after coal combustion. It contains some trace elements, but it is difficult to absorb without treatment. It should be fully burned to ensure that there is no coal residue, and then the burned coke part should be removed. The rest is filtered through a sieve, and the coarse and fine dregs are separated. Fine slag mixed soil can be used as matrix, but do not put too much, accounting for one third of the total. It is difficult to absorb the coarse slag, but it can be placed at the bottom of the basin to increase drainage and air permeability.

I. full combustion

Slag itself is produced by coal combustion. However, it is usually not fully burnt, and there is a certain amount of coal in it, which is not helpful for the growth of plants. So we need to burn it to one side first, and then burn the big pieces to pieces.

2. Select

It is easy to produce coke if the combustion time is too long. Coke contains only carbon element, and there is no other nutrition, so it needs to be removed. The rest needs to be filtered through a sieve to separate the dregs of different thicknesses.

3. Mixed soil

The finer slag should be mixed with the soil, and the finer slag should not be put too much. Although it contains trace elements, it also affects the drainage and permeability of soil. In general, the composition of soil is more than two-thirds.

Slag

4. Pad on the bottom of the basin

The coarser slag is not easy for plants to absorb their nutrients, so it is only used at the bottom of the basin to increase the drainage and permeability of the basin soil.