What is the effect of using bricks as planting material to raise orchids? @种在阳台上
There is no problem with brick orchids, the problem is that you did not "deal with it" in advance.
If you use old red bricks and green bricks to raise orchids, you all need to - 1. remove the powder, wash, 2. dry; 3. Disinfection.
After the bricks that have just come out of the kiln are processed and crushed, they should be soaked in clean water for 7 days, and the water should be changed once a day to remove their "fire poison" and then use.
This kind of hard planting material has strong water absorption, good drainage and air permeability, but it is easy to dry in autumn and winter, especially in Northeast and East China, and it is necessary to supply water frequently to supplement humidity.
The bricks do not contain nutrients and can be properly thinly fertilized during the growing period.
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