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Preparation method of seaweed organic silicon fertilizer

An organosilicon and seaweed technology, applied in organic fertilizers, fertilization devices, fertilizer mixtures, etc., can solve the problem that it can only be used on acidic and neutral soils, cannot be used flexibly with leaf spray or drip irrigation, and compound fertilizers are not water-soluble. and other problems, to achieve the effect of favorable crop absorption and utilization, low price and good use effect

Active Publication Date: 2016-12-21
青岛海大生物集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] At present, the main raw materials of silicon fertilizers on the market are blast furnace slag, phosphorus slag, fly ash, and papermaking black liquor is also used. The disadvantages of silicon fertilizers made from these materials are: (1) Poor water solubility, difficult for plants to absorb and utilize; ( 2) It can only be used as a long-term base fertilizer for crops, and it cannot be used for flexible leaf spray or drip irrigation during the silicon-loving period of plants. (3) It can only be used on acidic and neutral soils; although water-soluble silicon fertilizer made of water glass is Good solubility, but expensive, difficult to promote, and water glass silicate anion is prone to aggregation reaction, forming large aggregates, aging, particle size increases after aging, difficult to be absorbed by plants, and fertilizer efficiency becomes poor
[0014] Chinese invention patent application 201610096492.8 discloses a compound composition of silicon fertilizer and seaweed and its application. The composition is composed of silicon fertilizer and seaweed, and thickener, fulvic acid, rice husk ash, Glycolic acid, bentonite, urea, vermicompost, etc. have certain effects on increasing crop yield, improving soil and improving crop quality, but only seaweed is used in the composition, and most of the organic matter in the seaweed is discarded , which not only caused a serious waste of resources, but also greatly reduced the fertilizer efficiency of the compound fertilizer prepared
In addition, due to the addition of a large number of other nutritional components in the composition, the water solubility of the prepared compound fertilizer is not good, which affects the absorption of fertilizer by crops

Method used

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  • Preparation method of seaweed organic silicon fertilizer
  • Preparation method of seaweed organic silicon fertilizer

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Embodiment 1

[0037] The preparation steps of seaweed organic silicon fertilizer of the present invention are as follows:

[0038] 1. Preparation of this seaweed extract: adopt three-stage continuous extraction method, (1) take seaweed powder (cleaned, dried and crushed) and pass through a 60-mesh sieve, add water according to the ratio of material to liquid 1:40, and heat up the reaction kettle to 100°C , extracted for 3 hours, then separated and filtered, and the filtrate a and filter residue a were collected respectively; (2) Take the filter residue a and add 95% ethanol according to the ratio of material to liquid 1:1, heat up to 90°C, ultrasonically assisted extraction for 30 minutes, set the power to 300w, After separation and filtration, filtrate b and filter residue b are obtained; (3) Take filter residue b and add water at a ratio of 1:2 to liquid, then add 1.5‰ mixed enzymes (cellulase, pectinase), adjust the pH of the system to 4.0, and heat up to 45 ℃, stirred for 2 hours, and c...

Embodiment 2

[0048] 1. Preparation of seaweed extract: adopt three-stage continuous extraction method, (1) take seaweed powder (after cleaning, drying and crushing) and pass through an 80-mesh sieve, add water according to the ratio of material to liquid 1:30, and heat up the reaction kettle to 90°C , extracted for 2 hours, then separated and filtered to collect the filtrate a and filter residue a respectively; (2) take the filter residue a and add 95% ethanol according to the ratio of solid to liquid 1:1.5, raise the temperature to 80°C, ultrasonically assist extraction for 20 minutes, set the power to 400w, After separation and filtration, filtrate b and filter residue b are obtained; (3) Take filter residue b and add water at a ratio of 1:1.5 to liquid, then add 1‰ mixed enzymes (cellulase, pectinase), adjust the pH of the system to 4.5, and heat up to 50 ℃, stirred for 2.5h, and centrifuged to obtain filtrate c and filter residue c; (4) combined filtrates a, b, and c, heated to 80°C, an...

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Abstract

The invention belongs to the technical field of fertilizers, and relates to a preparation method of a seaweed organic silicon fertilizer. In order to overcome defects in the prior art and further improve the efficiency of a seaweed silicon fertilizer and the fertilizer utilization ratio of crops, the invention aims to provide a water-soluble seaweed organic silicon fertilizer having the advantages of simple process, good solubility and high concentration and a preparation method thereof. The preparation method comprises the following steps: A, preparing a seaweed extract, wherein the seaweed extract is prepared by a three-stage continuous extraction method through three-stage extraction of hot water leaching, organic solvent ultrasonic extraction and enzyme degradation; and B, preparing the seaweed organic silicon fertilizer, wherein the seaweed organic silicon fertilizer is prepared by adding 50-1000 parts of seaweed extract into a compounding tank, then adding 9000-9950 parts of micro silicon powder into the compounding tank and mixing to obtain a mixture. The seaweed organic silicon fertilizer provided by the invention has wide applicability, and can be widely used for rice, sugarcane, pasture, diatom, Equisetum, tomatoes and other silicon-needing or silicophilic crops; and the seaweed organic silicon fertilizer is low in price, favorable in use effect and suitable for large-area popularization.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and relates to a preparation method of seaweed organic silicon fertilizer. Background technique [0002] Silicon is considered by the international soil community to be the fourth plant nutrient element after nitrogen, phosphorus, and potassium. The role of silicon on plant growth is manifested in the following aspects: [0003] 1. Improve the photosynthesis of crops: silicon improves the photosynthetic efficiency of rice, barley, sugarcane and other gramineous crops. The light potential of the plant is improved, and the interception and utilization of light by the plant are improved. On the other hand, the silicified cells in the leaves of silicon-applied plants transmit much more scattered light than other cells, which can significantly promote the transmission of light quanta from the epidermis to the photosynthetic cells of the leaves and in the cortex of the stem, making the optical den...

Claims

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Application Information

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IPC IPC(8): C05G3/00
CPCC05D9/00C05F11/00
Inventor 单俊伟刘海燕马栋但丽霞
Owner 青岛海大生物集团股份有限公司