Add This "Gadget" to Flower Soil
In the process of home flower care, soil compaction is the most troublesome problem for gardening enthusiasts. When the surface of the potting soil turns white and cracks, and it becomes difficult to water, it indicates that the soil structure has been severely damaged. This article will reveal how adding a common material can create an ideal loose and breathable cultivation substrate.
Three Major Advantages of Using Coal Ash to Improve Soil
Continuous Nutrient Supply System
During the high-temperature firing process, the interior of coal ash forms a honeycomb-like porous structure, with these micropores able to absorb a large amount of trace elements such as iron and calcium. Over time, these elements are slowly released, forming a natural slow-release fertilizer system. Experimental comparisons show that a substrate with 30% coal ash increases the available phosphorus content by 2.3 times.
Master of Physical Structure Optimization
Mixing coal ash particles of 2-5mm in diameter with garden soil can reduce the soil bulk density by 40% and increase the porosity by 35%. This improvement effect can last for more than 3 years, avoiding the trouble of changing traditional leaf mold soil every year. Tests on rose potted plants show that root density increased by 58%.
Four-Step Coal Ash Treatment Method
Raw Material Selection Standards
Select completely combusted honeycomb coal residue, and remove any unburned black coal chunks. Sieve through a 4mm mesh, retain the middle layer particles to ensure both breathability and prevent nutrient loss.
Add This "Gadget" to Flower Soil
Disinfection and Activation Process
Scientific Proportioning Guide
Usage Grading Scheme
For large woody plants (such as camellias), it is recommended to add 40% coal ash, combined with 30% leaf mold soil + 30% river sand; for herbaceous flowers (such as dwarf petunias), use 25% coal ash + 50% peat + 25% perlite; for succulents, use 50% coal ash + 30% red jade soil + 20% vermiculite.
Dynamic Adjustment Strategy
Test the soil EC value every half year. When the conductivity is below 1.2mS/cm, supplement with 5% decomposed coal ash powder. Combined with annual spring topsoil replacement, continuously maintain the substrate activity.
Through a systematic coal ash application scheme, not only can the problem of soil compaction be solved, but also the fertilizer input can be reduced by 30%. This recycling of household waste is redefining the sustainable cultivation model of modern horticulture.