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Preparation method of water culture fertilizer for hydroponic crops

A technology for hydroponics and crops, applied in the direction of fertilizers, applications, and magnesium fertilizers made from biological waste, can solve problems that have not been reported in the field of preparation technology, and achieve the effects of reducing hydroponics costs, impacts, and difficulties

Inactive Publication Date: 2017-02-15
GUIZHOU KAILIN GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the application of alginate to the preparation technology field of hydroponic controlled release fertilizer has not been reported yet.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A method for preparing hydroponic fertilizer for hydroponic crops, comprising the following steps:

[0034] (1) Put the fertilizer into the coating machine, and under the rotation of the coating machine, spray an aqueous alginate solution with a mass concentration of 0.1%, and mix evenly, wherein the mass ratio of the fertilizer to the aqueous alginate solution is 90:7, Spray an aqueous solution of a crosslinking agent with a mass concentration of 3% on its surface, the spraying amount is 30% of the mass of the sodium alginate aqueous solution, mix evenly, heat up, and dry to obtain dry particles;

[0035] (2) The dry granules are placed in the external packaging agent, stirred evenly, filtered, sieved, heated and dried until the moisture content is 3%.

[0036] The outsourcing agent is a liquid mixed with starch, chitosan and glycerin in a mass ratio of 0.5:0.2:8.

[0037] In the said alginate aqueous solution, a photocatalyst is also added therein. The amount of pho...

Embodiment 2

[0042] A method for preparing hydroponic fertilizer for hydroponic crops, comprising the following steps:

[0043] (1) Put the fertilizer into the coating machine, and under the rotation of the coating machine, spray an aqueous alginate solution with a mass concentration of 3.7%, and mix evenly, wherein the mass ratio of the fertilizer to the aqueous alginate solution is 90:23, Then spray an aqueous solution of a crosslinking agent with a mass concentration of 9% on its surface, the spraying amount is 70% of the mass of the sodium alginate aqueous solution, mix evenly, heat up, and dry to obtain dry particles;

[0044] (2) The dry granules are placed in the external packaging agent, stirred evenly, filtered, sieved, heated and dried until the moisture content is 9%.

[0045] The outsourcing agent is a liquid mixed with starch, chitosan and glycerin in a mass ratio of 1.1:0.7:15.

[0046] In the said alginate aqueous solution, a photocatalyst is also added therein. The amount...

Embodiment 3

[0051] A method for preparing hydroponic fertilizer for hydroponic crops, comprising the following steps:

[0052] (1) Put the fertilizer into the coating machine, and under the rotation of the coating machine, spray an aqueous alginate solution with a mass concentration of 2.7%, and mix evenly, wherein the mass ratio of the fertilizer to the aqueous alginate solution is 90:21, Spray an aqueous solution of a crosslinking agent with a mass concentration of 6% on its surface, the spraying amount is 50% of the mass of the sodium alginate aqueous solution, mix evenly, heat up, and dry to obtain dry particles;

[0053] (2) The dry granules are placed in the external packaging agent, stirred evenly, filtered, sieved, heated and dried until the moisture content is 6%.

[0054] The outsourcing agent is a liquid mixed with starch, chitosan and glycerin at a mass ratio of 0.8:0.5:13.

[0055] In the said alginate aqueous solution, a photocatalyst is also added therein. The amount of p...

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Abstract

The invention relates to the technical field of water culture fertilizer, and specially relates to a preparation method of a water culture fertilizer for hydroponic crops. According to the preparation method, in a coating machine, an alginate water solution is used to carry out a coating treatment, then a crosslinking agent water solution is adopted to carry out a wrapping treatment to prepare dry particles; then an epiboly agent is added to carry out an epiboly treatment; after the alginate water solution reacts with the crosslinking agent water solution and the epiboly agent; the sustained-release period is prolonged, the water culture environment is improved; furthermore, as the sustained-release period is prolonged continuously, the alginate macromolecules are degraded into micromolecules, the fertilizer in the wrapped layer is completely released; after the sodium citrate in fertilizer particles is released, the alginate gel can be dissolved quickly, the alginate gel is decomposed, and the quality of water culture nutrient solution is improved.

Description

technical field [0001] The invention relates to the technical field of hydroponic fertilizers, in particular to a method for preparing hydroponic fertilizers for hydroponic crops. Background technique [0002] Soilless cultivation is a crop cultivation technique that does not use natural soil as a substrate. It is to cultivate crops directly in a nutrient solution in a certain device, or to cultivate crops on a cultivation bed filled with inactive solid substrates and nutrient solutions, because during the cultivation process , does not use traditional soil as a substrate, so it is called soilless cultivation. Hydroponics is a type of soilless cultivation in which crops are grown in a nutrient solution. [0003] In the traditional hydroponic process, the requirements for hydroponic fertilizer are relatively strict. In the process of nutrient solution preparation, the requirements for water quality are high, so that the water medicine can avoid being polluted by heavy metals...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
CPCC05D3/02C05D5/00C05G3/00C05G5/30C05D9/00C05F5/002C05F11/00C05D9/02
Inventor 张伟何花王采艳彭宝林唐丽君李豪杰
Owner GUIZHOU KAILIN GRP CO LTD
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