After composting and fermentation before use, microorganisms decompose the residues and excrement of motor plants into components that can be absorbed by plants. Before use, the compost is not fermented. If it is applied directly, the fermentation will be completed in the soil.
Mature fertilizer needs a lot of oxygen during fermentation, which will produce a lot of heat and toxic gases, but it will not compete with the plant for oxygen when it is applied; while immature fertilizer will complete fermentation in the soil when it is applied, it will compete with the plant for oxygen, and the heat generated will burn the root system..
Maturity fertilizer impurity is less, not maturity fertilizer contains a lot of bacteria, insect eggs, plants are vulnerable to pests.
Earthworms can survive in the soil with the application of the mature fertilizer, loosen the soil, and promote the development of plant roots. However, there are phenol or ammonia residues in the immature fertilizer, which is not suitable for earthworms to survive.
Part of the nutrients in the mature fertilizer are transformed into quick acting nutrients, which can be quickly absorbed by the plants; while the nitrogen fertilizer in the immature fertilizer is in the form of uric acid or urate, which is not only not absorbed by the crops, but also harmful to the growth and development of the roots of the crops.
