A kind of seaweed organic liquid fertilizer and preparation method thereof

Abstract

The invention discloses a sargassum organic liquid fertilizer and a preparation method thereof. The preparation method specially comprises the following steps: (1) ingredient treatment: adding 0.1-0.6 mass part of complex enzyme and 0.1-0.4 mass part of biological leaven to 100 mass parts of sargassum smashing liquid containing 70%-90% of water and then evenly mixing; (2) aerobic fermentation: putting the ingredient obtained in the step (1) in a fermentation tank, carrying out aerobic fermentation for 5-8 days at the temperature of 40-60 DGE C at the pH of 5-7 so as to obtain a fermentation broth; (3) filtration: fertilizing the fermentation broth obtained in the step (2) so as to obtain filtrate; and (4) complex formulation: blending the nutrition in the filtrate obtained in the step (3)so that the contents of nitrogen, phosphorus and potassium in the filtrate meet the following formula: N+P2O5+K2O>=100g/L. The preparation method disclosed by the invention has the advantages of quick fermentation, short production period and high fermentation degree, and is suitable for a large-scale production method for preparing the sargassum organic liquid fertilizer by virtue of a biological fermentation method.

Description

technical field [0001] The invention belongs to the field of organic fertilizer and organic fertilizer manufacture, and in particular relates to a seaweed organic liquid fertilizer and a preparation method thereof. Background technique [0002] Seaweeds such as kelp, giant algae, Ascophyllum nodosum, sea sac, and kelp are rich in various inorganic, organic, and biologically active substances that are useful for crop growth, and are very good agricultural fertilizers. The application of seaweed in agriculture has a long history. Many coastal countries in the world have collected seaweed to make compost long ago, that is, the brown algae washed to the coast by wind and waves will be piled up or buried in soil pits to make them compost. Naturally fermented to make seaweed fertilizer, the effect of increasing agricultural production is obvious. [0003] Under the conditions of modern industrialization, the production methods of seaweed fertilizer can generally be divided into: ...

AI Technical Summary

Problems solved by technology

However, the production of seaweed fertilizer by biological fermentation also has many disadvantages: for example, it is difficult to ferment macromolecular substances such as seaweed fiber, calcium alginate, fucoidan, protein, pectin, etc. , leading to too long production cycle; the degree of fermentation is not high, and the utilization rate of seaweed is not high, causing problems such as environmental pollution and waste of resources

Moreover, the process of producing seaweed fertilizer by biological fermentation lacks in-depth systematic research on its process and application mechanism. At present, it is limited to the laboratory research and exploration stage at home and abroad, and there is no mature and feasible preparation process for large-scale production.

[0005] Due to the limitations of their respective production processes, the current various seaweed fertilizers have low effective nutrient content and lack of active substances, resulting in low fertility and poor effect

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