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The matrix revolution is essential in modern horticulture. As environmental awareness grows, the post-processing challenges of rock wool have become more pressing. Peat, traditionally used as a growing medium, is a non-renewable resource that has faced overexploitation and restrictions. Additionally, its uneven distribution increases transportation costs, especially from the northeastern production areas to southern regions where demand is high. This has led researchers and growers to look toward organic waste as an alternative.
Organic waste materials used for ecological cultivation must meet specific criteria. First, the total nutrient content after fermentation should generally be below 4% (N + P₂O₅ + K₂O on a dry basis). If it exceeds this, it falls into the organic fertilizer category. Second, the material should remain stable for over a year after fermentation. Third, the EC value (electrical conductivity) should be under 4, and the water absorption rate should be above 2. Moreover, the raw materials should be affordable and widely available. Examples include cottonseed hulls, pig manure, cow dung, rice husks, slag ash, sawdust, and waste from mushroom farms—these are all viable options for producing eco-friendly growth media.
However, the concept of organic ecological cultivation is relatively new, emerging only in recent decades as environmental concerns have intensified. It involves fermenting organic waste with the help of functional bacteria, such as "Jinbao" fermentation agents. A small amount of peat, vermiculite, or perlite may be added to improve structure. The goal is to create a non-toxic, renewable medium suitable for modern horticultural practices.
The key to developing these organic matrices lies in creating a product that is physically and chemically stable, made from easily accessible and low-cost materials, environmentally friendly, and scalable for commercial use. Using organic waste to produce soilless growing media not only addresses waste management issues but also enhances the sustainable use of natural resources, offering both ecological and economic benefits.
For example, many flower producers in China have started using Jinbao fermentation agents to convert wood chips, bark, and other organic residues into ecological substrates. This approach has proven economically successful and is now being widely adopted. For more details, you can visit the official website or contact local agricultural centers.
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