The difference between decomposed and undecomposed fertilizers

Article Catalog

fermentation

oxygen

Impurities

gas

Utilization

Fermentation: The decomposed fertilizer undergoes retting and fermentation before use to decompose the organic residue into components; if the undecomposed fertilizer is applied directly, the fermentation will be completed in the soil and compete with the plants for oxygen. Impurities: decomposed fertilizers have fewer impurities, while undecomposed fertilizers contain a large number of pathogenic bacteria and insect eggs, making plants susceptible to damage by diseases and insect pests.

Fermentation

After composting and fermentation of decomposed fertilizers before use, microorganisms decompose organic plant residues and feces into components that plants can absorb; undecomposed fertilizers are not fermented before use. If they are applied directly , fermentation will be completed in the soil.

Oxygen

Mature fertilizer requires a lot of oxygen during the fermentation period and will produce a lot of heat and toxic gases, but it will not compete with the plants for oxygen when applied; while when applied without mature fertilizer When fermentation is completed in the soil, it will compete with the plant for oxygen, and the heat generated will burn the root system.

Impurities

Mature fertilizers contain fewer impurities, while immature fertilizers contain a large number of pathogenic bacteria and insect eggs, making plants susceptible to damage by diseases and insect pests.

Gas

Earthworms can be applied If it survives in the soil containing decomposed fertilizer, it can loosen the soil and promote the development of plant root systems; while there are phenol or ammonia residues in undecomposed fertilizer, which is not suitable for earthworms to survive.

Utilization rate

Part of the nutrients in decomposed fertilizers are converted into available nutrients, which can be quickly absorbed by plants; while the nitrogen fertilizer in undecomposed fertilizers exists in the form of uric acid or uric acid salts, and the crops are not only It cannot be absorbed and is harmful to the root growth and development of crops.

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