This "3 types" of slag as a pot bottom pad
To ensure that green plants have robust roots and flourishing leaves, the potting soil matrix is crucial for maintenance. Experienced gardeners know that pot bottom padding has dual benefits for plant growth: it can improve soil structure to prevent waterlogging and root rot, and it can continuously release nutrients to promote plant growth. This article will reveal three common household waste materials, which can be transformed into high-quality pot bottom media with simple processing, allowing plant roots to absorb ample nutrients in a breathable environment.
Using coal slag for gardening: porous media improve soil structure
Mineral element activation of soil mechanism
The residue after coal combustion contains mineral components such as iron oxide and calcium oxide. Its honeycomb-like pore structure can increase soil breathability by over 30%. Experimental tests show that coal slag particles with a particle size of 5-8mm have a water-holding rate of about 15%, which can retain water without accumulating excess, making them especially suitable for the respiratory needs of succulents and orchids.
Preprocessing and usage specifications
It needs to be rinsed with running water for 3 days to remove alkaline substances and then exposed to sunlight for 48 hours to sterilize. When used, place 1/5 of the pot volume at the bottom, mixed with humus soil at a ratio of 1:3 for better results. Remember to turn the soil monthly to prevent hardening and continuously release trace elements for 6-8 months.
This "3 types" of slag as a pot bottom pad
Bean slag fertilizer production: organic nitrogen and phosphorus cycle system
Biochemical reactions during fermentation
Residue from soybeans contains 45% crude protein and 18% fat, which, after fermentation with EM bacteria, are converted into absorbable amino acids and small molecular peptides for plants. Experimental data show that the total nitrogen content of the fermentation liquid reaches 2.3%, with phosphorus and potassium content increasing to 0.8% and 1.2% respectively, making it a natural organic liquid fertilizer.
Three elements of safe application
Sealed fermentation requires maintaining an ambient temperature of 25-35°C and opening the lid regularly to release gas. Mature fermentation liquid, diluted 1:100, used with ceramsite padding can increase fertilizer efficiency by three times. It is recommended to apply every 15 days during the growing season, combined with loosening the soil to prevent soil acidification.