The natural characteristics of pine bark – high organic content; In suitable chemical composition, stable pH, low EC content, and high N P、K、Ca、Mg； Stable physical properties, uniform and slow decomposition, achieving long-term fertilization effect; Good breathability and the ability to control air and moisture. Pine bark has a wide range of applications in fields such as flower cultivation and crop cultivation. Pine trees with pine bark can grow in various soils. Due to the low ash content of coniferous trees, they can tolerate poor soil conditions, but have high productivity when planted in