What is plain fill soil?

Plain fill is a type III soil that contains relatively few impurities or no impurities. It can be generally divided into crushed stone plain fill, sandy plain fill, powdery plain fill and many other types.

What kind of soil is plain fill soil

Plain fill is a mixed soil, mainly composed of gravel, sand, silt, clay, etc. It is formed by artificial filling and then compacted in layers. It is also called compacted fill.

The role of plain fill

Plain fill itself is relatively loose. Only clay plain fill that is more than 10 years old and sandy plain fill that is more than 5 years old can reach a certain density and strength and can be used as the foundation of a building.

The advantages of plain fill are that it can increase bearing capacity, reduce compressibility, and can also handle liquefiable foundations. The disadvantage is that its composition is relatively complex and has a certain degree of collapse, making it not very suitable for planting flowers and plants alone.

What is suitable for planting in plain soil?

Plain fill soil has little nutritional value, but it is loose and breathable, and it also has a moisturizing effect, so it is very suitable for cultivating bonsai plants. It is recommended to place it in a semi-shaded corner and maintain it by watering it when the soil is dry and wet.