1. Preparation of soil material
1, garden soil ordinary cultivation soil, due to frequent fertilization and cultivation, high fertility, rich in humus, good grain layout, is the primary identity of cultivating soil. It is excellent for growing roses, pomegranates and grass flowers. Disadvantages: surface is easy to knot, ventilation and water permeability is poor, should not be applied alone.
Two, the rotten leaf soil is made up of all kinds of plant leaves and weeds mixed into the garden soil, water and human excrement. The pH value was acidic and applied after exposure.
3, Hill mud is a kind of natural humus soil formed by rotting leaves. It is characterized by loose, breathable and acidic. It is suitable for planting flowers such as orchid, gardenia, Rhododendron and mountain lotus.
4, river sand can choose coarse coarse sand, which is the basic material for cultivating soil. A certain proportion of river sand is conducive to soil aeration and drainage.