Preparation method of self-sustained-release seaweed fertilizer

• Main Authors: TANG CUI, LI GUICHUN, JIANG ZENG, LIN HANNING, ZHANG XIUCHENG, ZHAO LU, DU ZHANGLIU, DONG YUE
• Format: Patent
• Language: Chinese; English
• Published: 18.12.2018
• Subjects: CHEMISTRY; FERTILISERS; FERTILISERS CHARACTERISED BY THEIR FORM; MANUFACTURE THEREOF; METALLURGY; MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS

The invention discloses a preparation method of a self-sustained-release seaweed fertilizer. The preparation method comprises the following steps of pretreating raw materials; carrying out enzymolysisand centrifuging; preparing a modified seaweed gel compound fluid; pelletizing; coating a film. The product provided by the invention is covered by a mixture obtained by mixing a sustained release component cross-linked with polysaccharide and macromolecule substances of seaweed and an undissolved substance phase convenient to be absorbed by crops after enzymolysis, and the self-sustained-releaseseaweed fertilizer is formed, so that the plant stress resistance and the root nutrition absorption can be improved, the chemical fertilizer utilization ratio can be remarkably improved, and the environmental pollution is reduced; the usage amount and the fertilization times of a chemical fertilizer and a pesticide can be reduced, the labor intensity of fertilization is reduced, the manpower is saved, and the soil fertili