What can vermiculite be used instead of?
The principle of preparing nutritious soil is to suit measures to local conditions. Not all nutritious soil for growing flowers has vermiculite. As long as the soil does not harden, but also to maintain water and fertilizer is the best. Generally speaking, rotten leaves are the best. They are better than vermiculite. But the decaying soil will decay over time, and the volume of culture soil will decrease gradually.
Vermiculite is a natural, non-toxic mineral that expands at high temperatures. It is a relatively rare mineral, belonging to silicates.
Its crystalline structure is monoclinic, and it looks like mica from its appearance. Vermiculite is produced by hydration of certain granite. It is commonly produced with asbestos. Because vermiculite has the ability of ion exchange, it has a great effect on the nutrition of the soil. In 2000, the total output of vermiculite in the world exceeded 500 thousand tons. The major producers are China, South Africa, Australia, Zimbabwe and the United states.
