Vermiculite: Stone is made by vermiculite horticultural processing exfoliated vermiculite; silicate material is formed by high-temperature after heating Mica warrants substances.
Vermiculite horticultureӮs chemical and chemical composition analysis
(Mg,Fe,Al)3[(Si,Al)4O10(HO)12]
Chemical composition
SiO2 35-41%
Al2O3 6-17%
Fe2O3 5-10%
MgO 15-26%
K2O 3-7%
H2O 8-11%
PH 7.0-7.4
Weight
130-180kg/m3
Specifications
EV-3A 3.5-7.0 mm
EV-3B 4.0-8.0 mm
EV-4A 1.5-3.0 mm
EV-3B 2.0-4.0 mm
EV-5 0.3-1.5 mm
Identity:1. Horticulture vermiculite(exfoliated vermiculite) to provide their own crops containing K, Mg, Ca, Fe and trace the Mn, Cu, Zn, and other elements. Hydroscopic, cation exchangeability and chemical composition characteristic of the vermiculite, make it case protect fat protecting water, storing ink, ventilate and mineral fertilizer multiple function. The test shows: Mix the inflation vermiculite of 10-20 among the compound fertilizer, can make the crops output improve 15-20.
2. The quality is light, the water manure is absorbed of good performancly, Non- rotten, It can use 3-5 year (whether as rotten to plant soil, coconut shell clothing, etc. easy and rotten).
3. Unit weight is 130-180 kilograms / cubic meter, Per cubic meter of vermiculite can absorb 500-650 liters of water, Its moisture in the course of heating loses rapidly, swell , the volume after swelling is equivalent to in fact 8-20 times of the volume. Make material this increase keep in touch with hole and protect water ability
Use; A .Train one of the main material of the soil , can be used as modifier of soil , appropriate pH of regulating the medium, can play a role in buffering , hinder to change rapidly pH from , make fertilizer grow medium slowly release in crop, and allow to use the fertilizer not to endanger the plant slightly excessively; Can mix and use it to have good cation exchangeability and absorbing with peat , pearlier ,etc. , can improve structure of soil , store water moisten skin , person who keep in |
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