A scientific description of vermiculite, which is a mica mineral consisting of silicate material, passes through 1000Heated at high temperature and gained after expansion. Vermiculite is widely used and can be applied to many fields such as construction, metallurgy and so on. In agriculture, mainly for potting soil and soil conditioner, but also for soilless cultivation. Its main function is to increase soil aeration and water retention. In addition to its own use, vermiculite can be mixed with perlite, sand, peat and so on. Vermiculite is very absorbent, so you can't water it too often with vermiculite.
In appearance, the vermiculite is earthy yellow, flashing golden particles from time to time. The smaller ones are like golden powder, and the larger ones are as large as the grains of rice. Holding a handle is very light, because its weight is only 1/10 of the same volume of soil.
In home use, do not grow flowers alone with small particles of vermiculite. Because the ventilation of the soil that will become worse, water plants will be suffocated because no way to breathe. Because vermiculite is a kind of inorganic material, so it will not vermin, will not decay, but it is easy to be broken, for 35 years will become the same as powder, ventilation, water will become worse, it can not be used. Vermiculite itself has no fertilizer ingredients, it can be applied to the cationic fertilizer adsorption, reduce the loss.Horticultural vermiculite (Vermiculite)Horticultural vermiculite is a specially made expanded vermiculite, whose main function is to increase the aeration and water retention of soil (medium). Because of its fragile, with the use of time to extend, easy to medium dense and lost ventilation and water retention, so coarse vermiculite better than the use of long time, and the effect is good. As a result, horticulture should be made of vermiculite with a thick sheet of vermiculite, even if the seeding medium of the fine seed and the covering for the seeding are all coarser.
Vermiculite is a kind of mica material which is formed when the silicate material is heated at high temperature. In the course of heating, water loses rapidly and expands, and the volume after expansion is equivalent to 8-20 times of the original volume. Thus, the aeration pore and water holding capacity of the substance are increased.
The bulk density of horticultural vermiculite is 130-180 kg / cubic meter, which is neutral to alkaline (ph7-9). Vermiculite can absorb up to 500-650 liters of water per cubic meter of water. After steam disinfection, can release the appropriate amount of potassium, calcium, magnesium.
