Agricultural-Rock-Wool

    There are many models of soilless cultivation. At present, rockwool cultivation in soilless cultivation has become relatively mature in the planting industry and has reached a new height. Rock wool is favored by major enterprises and growers due to its light weight, good air and water permeability, high porosity, strong drainage and stable control of root EC and pH. This article mainly introduces the properties of rock wool. Characteristics, production process, usage and recycling after use, etc.

1. Characteristics of rock wool
    1. Rock wool is a mixture containing 60% diabase, 20% limestone and 20% coke. It is melted in a high-temperature furnace at 2000°C. The melt is sprayed into filaments, pressed into tablets, and then cooled to about 200°C. It is made by adding phenolic resin and further processing.
    2. Rock wool is an inert matrix and its chemical properties are stable. The pH of rock wool in the initial stage of use is >7, and appropriate acid adjustment can be carried out; rock wool has been treated at high temperature and is sterile and non-toxic. Its bulk density is 0.08~0.1g/m3, its texture is light, its porosity ≥ 96%, and its air permeability is good. It has strong water absorption and permeability.

2. Advantages of rock wool cultivation
    Rock wool is an excellent substrate for soilless cultivation. Theoretically, rock wool can be used to cultivate any plant and is widely used in the cultivation and seedling raising of horticultural crops with very good results. Currently, the highest annual yield of tomato rockwool cultivation in the Netherlands is 107 kg/m2, maximizing the plant's production potential. Rockwool itself does not absorb any nutrients and water. Nutrients pass directly to the crop roots through rockwool, making it easy to adjust fertilizer concentration and control EC and pH more easily. Excellent rock wool is light, porous and breathable, with scientific and reasonable distribution of internal voids, uniform distribution of water and air, and easy penetration by plant roots, fully ensuring the healthy growth of the root system.

3. High-quality rock wool is a necessary condition for plant growth potential to be realized.
    Rockwool is rich in types and forms. Many rockwool production companies have long been committed to the research of rockwool seedlings and cultivation technology, and promoted the overall solution of soilless cultivation, which fundamentally solved the problem of promoting rockwool in agriculture and made rockwool popular in the field. Play its maximum role in agricultural production and meet various needs.

4. Recycling of rock wool
    Rockwool is produced from rock through high-temperature processing, and ultimately it is also a good raw material for the brick-making industry. At present, due to the small amount of rock wool used in China, there is not enough quantity to enable brick-making factories to change their processes and use rock wool to make fire bricks. At present, relevant domestic companies can guarantee free recycling of rock wool and process and disinfect it to make other high-quality fire bricks. base material.

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