Introduction of raw materials of self-made culture soil for potted flowers

(1) Garden soil (or vegetable soil, pastoral soil): this is a common cultivated soil, which is one of the main raw materials for preparation and cultivation because of frequent fertilization and cultivation, high fertility and good aggregate structure. The disadvantage is that the surface layer is easy to harden when dry, and the ventilation and water permeability is poor when wet, so it can not be used alone. Surface sandy loam with vegetables or legumes is the best.

(2) rotten leaf soil (or humus soil): a cultivated soil made by mixing the leaves and weeds of various plants into the owner of the garden, adding water and human feces and urine, and then accumulating and fermenting. The PH value was acidic. Must be used after exposure and screening.

(3) Mud: this is a kind of humus, the soil is loose and acidic. Compared with Montenegro mud, Huangshan mud is more viscous and contains less humus. According to the determination, the content of humus in black mountain mud of Heilongjiang and Ningbo is the highest. Mountain mud is often used as the main raw material for the cultivation of acidic flowers such as camellia, orchids, rhododendrons and so on.

(4) River sand (or plain sandy soil): it has good drainage and permeability, and when mixed into heavy clay soil, it can improve soil physical structure and increase soil drainage and ventilation. no, no, no. The disadvantage is that there is no fertility. It can be used as a material for preparing culture soil, and it can also be used as cutting or sowing substrate alone. When sea sand is used as culture soil, it must be washed with fresh water, otherwise the salt content is too high and the growth of flowers will be affected.

(5) the bran and plant ash: the former is the ash of rice husk, and the latter is the ash of rice straw or other weeds. Both are rich in potash. When it is added to the cultured soil, the drainage is good, the soil is loose, the content of potassium fertilizer is increased, and the PH value is alkaline.