阅读说明：本技术 一种含氨基酸的蔬菜水培营养液及其制备方法和应用 (Vegetable water culture nutrient solution containing amino acids as well as preparation method and application of vegetable water culture nutrient solution ) 是由 郭晓明 罗三根 邓万良 翟修彩 黄娟 刘玉珍 李肖宇 郭小红 陈晓燕 李锡明 于 2020-06-04 设计创作，主要内容包括：本发明提供了一种含氨基酸的蔬菜水培营养液及其制备方法和应用,属于植物生长领域。本发明提供了一种有机、无机复合型营养液,打破常规的纯无机矿质营养液,辅以有机成分,如氨基酸；含有复合氨基酸,肥效大于单质氨基酸,具有健壮根系、促进转绿、增加分蘖、提高抗逆性的功效,从而提高作物产量；氨基酸对作物的根系发育有特殊的促进作用,能以完整分子形态被根系直接吸收,在作物体内通过转氨基作用、脱氨基作用及其它过程加以同化,合成蛋白质或形成代谢能源,同时形成有机酸、糖等营养产物,另外,氨基酸会促进作物叶片中硝酸还原酶的活性,同时作为氮源部分取代硝酸盐,可以降低作物体内的硝酸盐含量,改善作物品质。(The invention provides a vegetable water culture nutrient solution containing amino acids as well as a preparation method and application thereof, belonging to the field of plant growth. The invention provides an organic and inorganic composite nutrient solution, which breaks through the conventional pure inorganic mineral nutrient solution and is supplemented with organic components, such as amino acid; contains compound amino acid, has fertilizer efficiency greater than that of simple substance amino acid, and has the effects of strengthening root system, promoting greening, increasing tillering and improving stress resistance, thereby improving crop yield; amino acid has special promotion effect on the root system development of crops, can be directly absorbed by the root system in a complete molecular form, is assimilated in the crop body through transamination, deamination and other processes to synthesize protein or form metabolic energy, and simultaneously form organic acid, sugar and other nutritional products.)

1. The vegetable water culture nutrient solution containing amino acid is characterized by comprising the following elements in concentration: 43.29-72.15 g/L of nitrogen, 16.63-27.72 g/L of phosphorus, 67.13-111.88 g/L of potassium, 29.661-49.43 g/L of calcium, 8.519-14.2 g/L of magnesium, 0.697-1.161 g/L of iron, 0.187-0.311 g/L of manganese, 0.178-0.297 g/L of boron, 0.018-0.03 g/L of zinc, 0.007-0.012 g/L of copper and 0.004-0.006 g/L of molybdenum, wherein the concentration of organic nitrogen in nitrogen is 2.16-3.6 g/L, the concentration of chelated calcium in calcium is 4.32-7.2 g/L, and the vegetable water-culture nutrient solution contains amino acid.

2. The vegetable hydroponics nutrient solution of claim 1, comprising the following concentrations of elements: 48.10g/L of nitrogen, 18.48g/L of phosphorus, 74.59g/L of potassium, 32.96g/L of calcium, 9.47g/L of magnesium, 0.774g/L of iron, 0.207g/L of manganese, 0.198g/L of boron, 0.02g/L of zinc, 0.008g/L of copper and 0.004g/L of molybdenum, wherein the concentration of organic nitrogen in nitrogen is 2.4g/L, and the concentration of chelated calcium in calcium is 4.8 g/L.

3. The method of preparing a hydroponic nutrient solution for vegetables according to claim 1 or 2, comprising the steps of:

mixing amino acid solution, sugar alcohol calcium, calcium nitrate, potassium nitrate, EDTA-Fe and water to obtain solution A;

mixing monoammonium phosphate, monopotassium phosphate, ammonium sulfate, anhydrous magnesium sulfate, manganese sulfate, boric acid, zinc sulfate, copper sulfate, ammonium molybdate and water to obtain solution B;

and respectively preserving the solution A and the solution B, and then packaging to obtain the vegetable water culture nutrient solution.

4. The method according to claim 3, wherein the amino acid solution is a complex amino acid, and the content of free amino acids in the amino acid solution is 300g/L or more.

5. The method according to claim 3 or 4, wherein the amino acid solution comprises glutamic acid, proline, glycine, alanine, serine, aspartic acid, threonine, cystine, valine, methionine, isoleucine, leucine, tyrosine, phenylalanine, lysine, histidine and arginine.

6. The use of the vegetable hydroponics nutrient solution of claim 1 or 2, wherein the vegetable hydroponics nutrient solution is diluted 200-500 times for plant hydroponics.

7. The use of claim 6, wherein the dilution is to mix the hemihydrate and solution A by stirring and then add solution B to the dilution factor.

Technical Field

The invention relates to the technical field of plant growth, in particular to a vegetable water culture nutrient solution containing amino acid and a preparation method and application thereof.

Background

The nutrient solution is a key technology in water culture planting and plays a decisive role in the growth quality of vegetables. The root system state reflects the growth trend of vegetables, and the general water culture fertilizer is completely mineral inorganic nutrition and has weak root growth promoting effect. Some fertilizer manufacturers add hormone rooting agents for blindly pursuing rooting, and deviate from the food safety concept. And the nitrogen of the pure inorganic fertilizer is mainly nitrate, the nitrate content of the hydroponic vegetables is high, and after being taken by a human body, the nitrites are generated through denitrification, so that the pure inorganic fertilizer is not beneficial to the health of the human body. The problems of the water culture fertilizer are urgently solved, and the development of the water culture vegetables towards the green and healthy direction can be promoted.

Disclosure of Invention

In view of the above, the invention aims to provide an amino acid-containing vegetable water culture nutrient solution, and a preparation method and application thereof. The invention combines amino acid and inorganic nutrition to obtain the vegetable water culture nutrient solution containing the amino acid so as to meet the requirement of safe water culture.

In order to achieve the above object, the present invention provides the following technical solutions:

the invention provides a vegetable water culture nutrient solution containing amino acids, which comprises the following elements in concentration: 43.29-72.15 g/L of nitrogen, 16.63-27.72 g/L of phosphorus, 67.13-111.88 g/L of potassium, 29.661-49.43 g/L of calcium, 8.519-14.2 g/L of magnesium, 0.697-1.161 g/L of iron, 0.187-0.311 g/L of manganese, 0.178-0.297 g/L of boron, 0.018-0.03 g/L of zinc, 0.007-0.012 g/L of copper and 0.004-0.006 g/L of molybdenum, wherein the concentration of organic nitrogen in nitrogen is 2.16-3.6 g/L, the concentration of chelated calcium in calcium is 4.32-7.2 g/L, and the vegetable water-culture nutrient solution contains amino acid.

Preferably, the following concentrations of elements are included: 48.10g/L of nitrogen, 18.48g/L of phosphorus, 74.59g/L of potassium, 32.96g/L of calcium, 9.47g/L of magnesium, 0.774g/L of iron, 0.207g/L of manganese, 0.198g/L of boron, 0.02g/L of zinc, 0.008g/L of copper and 0.004g/L of molybdenum, wherein the concentration of organic nitrogen in nitrogen is 2.4g/L, and the concentration of chelated calcium in calcium is 4.8 g/L.

The invention also provides a preparation method of the vegetable water culture nutrient solution, which comprises the following steps:

mixing amino acid solution, sugar alcohol calcium, calcium nitrate, potassium nitrate, EDTA-Fe and water to obtain solution A;

mixing monoammonium phosphate, monopotassium phosphate, ammonium sulfate, anhydrous magnesium sulfate, manganese sulfate, boric acid, zinc sulfate, copper sulfate, ammonium molybdate and water to obtain solution B;

and respectively preserving the solution A and the solution B, and then packaging to obtain the vegetable water culture nutrient solution.

Preferably, the amino acid solution is a compound amino acid, and the content of free amino acid in the amino acid solution is more than 300 g/L.

Preferably, the amino acid solution comprises glutamic acid, proline, glycine, alanine, serine, aspartic acid, threonine, cystine, valine, methionine, isoleucine, leucine, phenylalanine, lysine, histidine and arginine.

The invention also provides an application of the vegetable water culture nutrient solution, and the vegetable water culture nutrient solution is diluted by 200-500 times and then is used for water culture of plants.

Preferably, the dilution is to mix the hemihydrate and the solution A uniformly by stirring, and then add the solution B to the dilution ratio.

The invention provides a vegetable water culture nutrient solution containing amino acids, which comprises the following elements in concentration: 43.29-72.15 g/L of nitrogen, 16.63-27.72 g/L of phosphorus, 67.13-111.88 g/L of potassium, 29.661-49.43 g/L of calcium, 8.519-14.2 g/L of magnesium, 0.697-1.161 g/L of iron, 0.187-0.311 g/L of manganese, 0.178-0.297 g/L of boron, 0.018-0.03 g/L of zinc, 0.007-0.012 g/L of copper and 0.004-0.006 g/L of molybdenum, wherein the concentration of organic nitrogen in nitrogen is 2.16-3.6 g/L, the concentration of chelated calcium in calcium is 4.32-7.2 g/L, and the vegetable water-culture nutrient solution contains amino acid.

Has the advantages that:

1. is an organic and inorganic composite nutrient solution, breaks through the conventional pure inorganic mineral nutrient solution, and is supplemented with organic components, such as amino acid.

2. Contains compound amino acid, has fertilizer efficiency higher than that of simple substance amino acid, and has the effects of strengthening root system, promoting greening, increasing tillering and improving stress resistance, thereby improving crop yield.

3. Amino acid has special promoting effect on the root system development of crops, can be directly absorbed by the root system in a complete molecular form, is assimilated in the crop body through transamination, deamination and other processes to synthesize protein or form metabolic energy, and forms organic acid, sugar and other nutritional products through tricarboxylic acid circulation, glycolysis and other ways, so that the tillering of plants can be increased, the leaf color is changed to green, the root system is robust, and the yield is increased. In addition, the amino acid can promote the activity of nitrate reductase in crop leaves, and can be used as a nitrogen source to partially replace nitrate, so that the content of nitrate in crops can be reduced, and the quality of crops can be improved.

4. Contains sugar alcohol calcium, can be quickly absorbed by crops, and simultaneously prevents the generation of precipitates with phosphate radicals and sulfate radicals, so that the fertilizer efficiency is more stable. On one hand, the sugar alcohol calcium takes mannitol as a carrier of calcium element, and is easy to be absorbed by phloem, so that the sugar alcohol calcium can be absorbed and transported more quickly; on the other hand, the calcium element is in a chelating state, is not easy to generate precipitation with phosphate radical and sulfate radical, keeps the activity of the calcium element and has more stable fertilizer efficiency.

5. The vegetable hydroponic nutrient solution is A, B combined, is different from the conventional A, B, C type, and is simple and convenient to operate.

The invention also provides a preparation method of the vegetable hydroponic nutrient solution containing amino acid, and the two steps of adding the raw materials aim to ensure that the potassium nitrate, the monoammonium phosphate, the monopotassium phosphate and the ammonium sulfate have relatively low solubility, are preferentially added into water, are more easily dissolved at low solute concentration and can accelerate the production speed.

The invention also provides application of the vegetable hydroponic nutrient solution containing amino acid, wherein semi-water and the solution A are stirred and mixed uniformly, and the solution B is added to the mixture to be diluted to a dilution multiple, so that the mixing amount of the solution A and the solution B with high concentration is reduced, the contact area of precipitable elements such as calcium ions, sulfate radicals and phosphate radicals is reduced, the generation of precipitation is prevented, and the fertilizer efficiency is ensured.

Drawings

FIG. 1 is a flow chart of the preparation of an amino acid-containing vegetable hydroponic nutrient solution in an example of the present invention;

FIG. 2 is a diagram showing the cultivation of pakchoi using the amino acid-containing vegetable hydroponic nutrient solution prepared in example 1;

FIG. 3 is a diagram showing the cultivation of pakchoi using the amino acid-containing vegetable hydroponic nutrient solution prepared in example 2;

FIG. 4 is a diagram showing the cultivation of pakchoi using the amino acid-containing vegetable hydroponic nutrient solution prepared in example 3;

FIG. 5 is a diagram showing a case where pakchoi was cultured using the vegetable hydroponic nutrient solution prepared in the comparative example.

Detailed Description

The invention provides a vegetable water culture nutrient solution containing amino acids, which comprises the following elements in concentration: 43.29-72.15 g/L of nitrogen, 16.63-27.72 g/L of phosphorus, 67.13-111.88 g/L of potassium, 29.661-49.43 g/L of calcium, 8.519-14.2 g/L of magnesium, 0.697-1.161 g/L of iron, 0.187-0.311 g/L of manganese, 0.178-0.297 g/L of boron, 0.018-0.03 g/L of zinc, 0.007-0.012 g/L of copper and 0.004-0.006 g/L of molybdenum, wherein the concentration of organic nitrogen in nitrogen is 2.16-3.6 g/L, the concentration of chelated calcium in calcium is 4.32-7.2 g/L, and the vegetable water-culture nutrient solution contains amino acid, preferably comprises the following elements: 48.10g/L of nitrogen, 18.48g/L of phosphorus, 74.59g/L of potassium, 32.96g/L of calcium, 9.47g/L of magnesium, 0.774g/L of iron, 0.207g/L of manganese, 0.198g/L of boron, 0.02g/L of zinc, 0.008g/L of copper and 0.004g/L of molybdenum, wherein the concentration of organic nitrogen in nitrogen is 2.4g/L, and the concentration of chelated calcium in calcium is 4.8 g/L.

The invention also provides a preparation method of the vegetable water culture nutrient solution, which comprises the following steps:

mixing amino acid solution, sugar alcohol calcium, calcium nitrate, potassium nitrate, EDTA-Fe and water to obtain solution A;

mixing monoammonium phosphate, monopotassium phosphate, ammonium sulfate, anhydrous magnesium sulfate, manganese sulfate, boric acid, zinc sulfate, copper sulfate, ammonium molybdate and water to obtain solution B;

and respectively preserving the solution A and the solution B, and then packaging to obtain the vegetable water culture nutrient solution.

In the invention, the amino acid solution is preferably compound amino acid, and the content of free amino acid in the amino acid solution is preferably more than 300 g/L.

In the present invention, the amino acid solution preferably includes glutamic acid, proline, glycine, alanine, serine, aspartic acid, threonine, cystine, valine, methionine, isoleucine, leucine, tyrosine, phenylalanine, lysine, histidine and arginine.

The invention adds raw materials in two steps, and aims to ensure that the potassium nitrate, the monoammonium phosphate, the monopotassium phosphate and the ammonium sulfate have relatively low solubility, are preferentially added into water, are more easily dissolved at low solute concentration and can accelerate the production speed.

The invention also provides an application of the vegetable water culture nutrient solution, and the vegetable water culture nutrient solution is diluted by 200-500 times and then is used for water culture of plants.

In the invention, the dilution is preferably to stir and mix half water and the solution A uniformly, then add the solution B to the dilution ratio, the solution A and the solution B can not be mixed directly, and the separate addition aims to reduce the mixing amount of the solution A and the solution B with high concentration, reduce the contact area of precipitable elements such as calcium ions, sulfate radicals and phosphate radicals, prevent the generation of precipitates and ensure the fertilizer efficiency.

In the invention, after the solution A and the solution B are obtained, the vegetable water culture nutrient solution is used and is ready to use after being prepared.

In the present invention, the application is preferably used for balcony hydroponic facilities, greenhouse hydroponic facilities or plant factories.

To further illustrate the present invention, the amino acid-containing vegetable hydroponics nutrient solution provided by the present invention, and the preparation method and application thereof, will be described in detail with reference to examples, but they should not be construed as limiting the scope of the present invention.

FIG. 1 is a flow chart of the preparation of amino acid-containing vegetable hydroponic nutrient solution in the example of the present invention.

A vegetable water culture nutrient solution containing amino acids is prepared by stirring in a stirring tank. Wherein, the solution A is prepared from amino acid solution, sugar alcohol calcium, calcium nitrate, potassium nitrate and EDTA-Fe, and the solution B is prepared from monoammonium phosphate, monopotassium phosphate, ammonium sulfate, anhydrous magnesium sulfate, manganese sulfate, boric acid, zinc sulfate, copper sulfate, ammonium molybdate and the like. The different embodiments differ in the content of the nutritional ingredients.