Improvement effect of vermiculite on flower-growing soil
Vermiculite is the expansion of mica rock under high temperature. Compared with raw ore, vermiculite is like the difference between popcorn and rice in life. Vermiculite has a very low density because of its large internal voids. It is often used to make thermal insulation materials in industry, but the application in horticulture can improve soil porosity, increase soil permeability, water permeability and water retention. It can be seen that the effect of vermiculite on soil improvement is very obvious.
Vermiculite: the role of vermiculite-A complete collection of flower-growing soil
At the same time, the water saturation of vermiculite is very high, vermiculite per unit weight can absorb water equal to 4 times its own weight, which shows that its water absorption and locking effect is very good. But at the same time, its ability to permeate and transmit water is also very strong. In other words, when the basin soil is mixed with appropriate amount of vermiculite and then watered through, the moisture content of the upper soil is not much different from that of the lower soil. In this way, for pot users, it is easier to judge the dry and wet condition of potted soil, so as to reduce the difficulty of water management in the process of growing and growing plants.
Vermiculite seedling
Vermiculite is also a kind of inorganic ore, even so, it also has a strong ion exchange capacity, so it has a very good activity. Using vermiculite with very high activity to cultivate plants will stimulate the growth of plants to a great extent and accelerate the germination and growth of roots, especially for the cultivation of group root plants. It can be seen that it plays a powerful role in promoting plant growth.
But here, the editor needs to explain that in the cutting of ordinary flowers and plants and promoting rooting, many people try to use vermiculite as a culture medium. Because in everyone's eyes, it is believed that vermiculite is clean after all, and it does not contain nutrients. Although it does not have the necessary nutrients to promote plant growth, it actually has a strong ion exchange capacity, which can well balance the nutrients in the basin soil, so as to promote plant growth.
Vermiculite cutting
Vermiculite has many advantages and outstanding functions, but it also has some disadvantages in the application of soil blending. Its biggest characteristic is fragile, after long-term cultivation of plants, vermiculite particles will gradually become smaller, and eventually become a large amount of powder. After turning into powder, if water and fertilizer are often poured, it is easy to deposit and produce stickiness to each other, which eventually leads to the consolidation of basin soil, which not only inhibits the intake of water and fertilizer to a certain extent, but also inhibits the respiration of roots.
Therefore, usually we only use vermiculite at the sowing and seedling stage to promote plant germination and growth, or as a substrate for cutting propagation to promote rooting. Vermiculite is suitable for short-term cultivation of plants, but not suitable for long-term cultivation of plants, especially large potted flowers and plants.
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