The plant matter – part 1

THE PLANT MATERIALS

Nothing in orchid care is chosen more individually than the plant substances and their mixing ratio. The observation is strange, that despite the often quite contradicting composition, the result can be equally good. This statement proves the great vitality of the orchids as a whole. One can say here too, that species considered difficult can grow well; you just have to find the conditions that suit you, which the plant material has a decisive influence on.
The properties are formulated below, which the plant material for epiphytes should possess.
The frequently mentioned oxygen demand of the orchid roots and soil bacteria requires a loose one, well-ventilated structure of the plant material.
It has to be stable for a long time, so must not rot quickly.
The dewatering must be sufficient, but not be excessive, to enable the plant to absorb sufficient water, without permanent moisture.
The mineral nutrition of the plant must be assured to a certain extent.
The plant material must not have roots- or contain substances that are harmful to plants. Its pH value should correspond to a slightly acidic reaction. Good buffering ability, d.h. the ability, to keep the acidity as constant as possible for a long time, is another requirement.
The plants must be supported by the plant material, without too strong a compression due to the required firm plug.
It is obvious, that with such a large number of claims there is no plant material, de r should be addressed as ideal. Only combinations of different media are good. Your choice and the mixing ratio is an often hotly controversial matter for the orchid keeper - whether for work or hobby. For the beginner, only the old, tried and tested compositions come into consideration. If, nevertheless, the newer and newest substraie is discussed at this point, so this is what happens, to show the development and to encourage experimenters to try it out.

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