Process for producing seaweed liquid fertilizer

A technology of liquid fertilizer and production process, applied in the direction of organic fertilizer, etc., can solve the problems of slow fertilizer efficiency of crops, achieve the effects of developed aggregate structure, increased supply, and improved quality

Inactive Publication Date: 2004-02-11
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the direct use of seaweed as fertilizer has a slow fertilizer effect on crops. The reason is that soil bacteria need a process to decompose carbohydrates and proteins, which is similar to the decomposition process of other organic fertilizers.

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0006] The present invention is illustrated by the following examples.

[0007] Add 20kg of kelp to 400kg of water and soak for 8 hours, then pulverize. Put the crushed kelp and kelp soaking water into a pressure tank, add 1% hydrochloric acid, heat up, degrade for 2 hours, filter, and concentrate the filtered clear liquid by 10 times to obtain 40kg of viscous liquid, which can be prepared according to 1- A 10,000-fold dilution was used.

[0008] The weight of the fresh water used for soaking in the present invention is 1-100 times of the weight of the kelp, and the soaking time is 1-10 hours, so that the kelp can fully absorb water and swell. Crush or cut to 10-20cm. Adding hydrochloric acid to degrade the kelp, the temperature is controlled at 45-120° C., the time is 0.5-4 hours, and the degree of polymerization of the seaweed polysaccharide is controlled below 100. Add alkaline substances such as potassium hydroxide or sodium hydroxide or sodium carbonate to digest the o...

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Abstract

The production process of liquid seaweed fertilizer includes the steps of soaking kelp in fresh water, crushing or shearing kelp, degrading kelp with acid to produce seaweed polysaccharide with polymerization degree controlled below 100, digesting the degraded liquid with alkali matter, filtering and concentration. The liquid seaweed fertilizer thus produced contains the nutritive components of seaweed as well as active components algin oligose, plant growth regulator and great amount of trace elements P, Ca, K, Mg, Zn and Fe. It may be used as foliage fertilizer and base fertilizer and canpromote the growth of bacteria in soil, and is easily absorbed by crop root system to promote plant's growth, raise disease resistance and improve crop quality.

Description

technical field [0001] The invention relates to a production process of seaweed liquid fertilizer. technical background [0002] Seaweed (kelp) contains dozens of mineral elements, fats and phospholipids, organic acids, aldehydes, ketones, alcohols, monosaccharides, disaccharides, starch, glycogen, inulin, cellulose, pectin substances (semi-fibers) element), tannins, protein, minerals, iodine, gibberellin and humus, among which humus can promote plant growth and hold water. However, using seaweed directly as fertilizer has a slow fertilizer effect on crops. The reason is that soil bacteria need a process to decompose carbohydrates and proteins, which is similar to the decomposition process of other organic fertilizers. Contents of the invention [0003] The purpose of this invention is to provide a kind of production technology of seaweed liquid fertilizer, the seaweed liquid fertilizer produced by it can overcome the above-mentioned shortcoming of prior art. [0004] A ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F11/00
Inventor 许加超李兆杰薛长胡徐杰单俊伟刘铁玲车兆东
Owner OCEAN UNIV OF CHINA
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