Nutrient solution for soilless culture and preparation method thereof

A technology of soilless cultivation and nutrient solution, applied in the direction of application, liquid fertilizer, fertilizer mixture, etc., can solve the problem of strong bitter taste of vegetables, achieve the effects of good ion compatibility, promote synthesis, and improve taste

Inactive Publication Date: 2020-04-17
广东灿城农产品集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of this invention is to provide a kind of nutrient solution for soilless cultivation and its preparation method, to solve the technical problem that vegetables have a strong bitter taste in the past

Method used

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  • Nutrient solution for soilless culture and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] This embodiment provides a nutrient solution for soilless culture, and the steps are as follows:

[0068] (1) Weigh calcium nitrate 527mg, diammonium phosphate 600mg, potassium dihydrogen phosphate 437mg potassium sulfate 670mg, magnesium sulfate 500mg, EDTA iron sodium salt 6.44mg, manganese sulfate 1.72mg, zinc sulfate 1.46mg, boric acid 2.38mg, sulfuric acid Copper 0.2mg, sodium molybdate 0.13mg, soluble humic acid 6g, dissolved in softened tap water to form a mixed solution;

[0069] (2) Add a small amount of dilute sodium hydroxide solution to adjust the pH of the mixed solution to be neutral, that is, around 6.5-7.5;

[0070] (3) The pH-adjusted mixed solution is sterilized and disinfected by ultraviolet light combined with electricity to obtain nutrient solution A.

Embodiment 2

[0072] This embodiment provides a nutrient solution for soilless culture, and the steps are as follows:

[0073] (1) Weigh ammonium nitrate 400mg, urea 515mg, potassium dihydrogen phosphate 856mg, potassium sulfate 670mg, magnesium sulfate 460mg, EDTA iron sodium salt 5.73mg, manganese sulfate 1.57mg, zinc sulfate 1.46mg, boric acid 2.3mg, copper sulfate 0.17 mg, sodium molybdate 0.11mg, soluble humic acid 4.5g, dissolved in softened tap water to form a mixed solution;

[0074] (2) Add a small amount of dilute sodium hydroxide solution to adjust the pH of the mixed solution to be neutral, that is, around 6.5-7.5;

[0075] (3) The pH-adjusted mixed solution is sterilized and disinfected by ultraviolet light combined with electricity to obtain nutrient solution A.

Embodiment 3

[0077] This embodiment provides a nutrient solution for soilless culture, and the steps are as follows:

[0078] (1) Weigh potassium nitrate 477mg, ammonium nitrate 336mg, diammonium phosphate 255mg, potassium dihydrogen phosphate 637mg, potassium sulfate 218mg, magnesium sulfate 500mg, EDTA iron sodium salt 7.95mg, manganese sulfate 1.36mg, zinc sulfate 1.32mg, boric acid 2.4mg, copper sulfate 0.15mg, sodium molybdate 0.10mg, soluble humic acid 3.1g, dissolved in distilled water to form a mixed solution;

[0079] (2) Add a small amount of dilute sodium hydroxide solution to adjust the pH of the mixed solution to be neutral, that is, around 6.5-7.5;

[0080] (3) The pH-adjusted mixed solution is sterilized and disinfected by ultraviolet light combined with electricity to obtain nutrient solution A.

[0081] Comparative Example of Example 1

[0082] This embodiment provides a nutrient solution for soilless culture, and the steps are as follows:

[0083] (1) Weigh calcium nitrate 527mg, d...

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Abstract

The invention provides a nutrient solution for soilless culture. The nutrient solution is characterized in that each kilogram of the nutrient solution comprises 836-1069 mg of a nitrogen source, 860-1146 mg of a phosphorus source, 975-1201 mg of a potassium source, 430-500 mg of a magnesium source, 10-15 mg of necessary trace elements and 3-6 g of soluble humic acid, with the balance being water.The water-soluble humic acid is adopted, so the high efficiency and low cost of the nutrient solution are ensured, and the taste of vegetables can be retained. In addition, the water-soluble humic acid can also promote the synthesis of vitamin C of vegetables, so the abundance of vitamin C in the vegetables can be improved to a certain extent.

Description

Technical field [0001] The invention belongs to the field of soilless culture, and specifically relates to a nutrient solution for soilless culture and a preparation method thereof. Background technique [0002] As the environment deteriorates, the land cannot be spared. As an artificial planting environment, hydroponic vegetables can effectively avoid the problem of land pollution. It can be truly green and pollution-free. Hydroponics is pure soilless cultivation. Because there is no intermediate adsorption and buffering medium between the root system and the nutrient solution, it is in direct "immersion" contact. To make plants grow healthily, we must first ensure that the root system grows well, and whether the root system grows well depends on the rhizosphere environment. The temperature of the rhizosphere environment, oxygen, pH, ion concentration and the ratio of Cpl of different ions should be appropriate. And whether the mineral nutrients in the nutrient solution are ...

Claims

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Application Information

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IPC IPC(8): C05G1/00C05G5/23
CPCC05B7/00
Inventor 李阳城
Owner 广东灿城农产品集团有限公司
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