阅读说明：本技术 一种无土栽培营养液及其制备方法 (Soilless culture nutrient solution and preparation method thereof ) 是由 陈海 于 2019-11-28 设计创作，主要内容包括：本发明提供一种无土栽培营养液及其制备方法,其营养液包括A、B、C三组母液复配,其中A组母液包括尿素、硝酸钙、磷酸二氢钾和硫酸镁、氯化钙、三氯化铁、硼砂、鲜木耳、玉米秸秆、牡蛎；B组母液包括硫酸锰、硫酸锌、四水硝酸钙、硝酸钾、磷酸氢二铵、硝酸铵；C组母液包括磷酸二氢钾、硫酸钾、七水硫酸镁、红米发酵液、大麦浸提液；本发明的无土栽培营养液绿色无污染,不含有任何有害物质,对人体无害,比土培的蔬菜主要营养成分含量高,减少重金属污染,在水培蔬菜方面具有非常重要的意义。(The invention provides a soilless culture nutrient solution and a preparation method thereof, wherein the nutrient solution comprises A, B, C three groups of mother solutions which are compounded, wherein the A group of mother solutions comprise urea, calcium nitrate, potassium dihydrogen phosphate, magnesium sulfate, calcium chloride, ferric trichloride, borax, fresh agaric, corn straw and oyster; the B group mother liquor comprises manganese sulfate, zinc sulfate, tetrahydrate calcium nitrate, potassium nitrate, diammonium hydrogen phosphate and ammonium nitrate; the group C mother liquor comprises potassium dihydrogen phosphate, potassium sulfate, magnesium sulfate heptahydrate, red rice fermentation liquor, and barley leaching liquor; the soilless culture nutrient solution is green and pollution-free, does not contain any harmful substance, is harmless to human bodies, has higher content of main nutrient components than vegetables cultured in soil, reduces heavy metal pollution, and has very important significance in the aspect of hydroponic vegetables.)

1. A soilless culture nutrient solution is characterized in that: comprises A, B, C three groups of mother liquor which are compounded according to the proportion of (0.5-1) to (0.8-1.5) to 1;

the group A mother solution comprises the following raw materials in parts by weight: 100-250 parts of urea, 90-150 parts of calcium nitrate, 50-70 parts of monopotassium phosphate and magnesium sulfate, 32-50 parts of calcium chloride, 20-38 parts of ferric trichloride, 21-35 parts of borax, 17-30 parts of fresh agaric, 20-36 parts of corn straw and 20-45 parts of oyster;

the group B mother solution comprises the following raw materials in parts by weight: 35-39 parts of manganese sulfate, 33-45 parts of zinc sulfate, 28-35 parts of calcium nitrate tetrahydrate, 20-36 parts of potassium nitrate, 45-85 parts of diammonium hydrogen phosphate and 42-65 parts of ammonium nitrate;

the group C mother solution comprises the following raw materials in parts by weight: 40-85 parts of monopotassium phosphate, 30-70 parts of potassium sulfate, 36-75 parts of magnesium sulfate heptahydrate, 29-55 parts of red rice fermentation liquor and 36-55 parts of barley leaching liquor.

2. The soilless culture nutrient solution of claim 1, wherein: comprises A, B, C three groups of mother liquor which are compounded according to the ratio of 0.8:1.2: 1;

the group A mother solution comprises the following raw materials in parts by weight: 160 parts of urea, 120 parts of calcium nitrate, 60 parts of potassium dihydrogen phosphate and magnesium sulfate, 40 parts of calcium chloride, 29 parts of ferric trichloride, 28 parts of borax, 23 parts of fresh agaric, 28 parts of corn straw and 28 parts of oyster;

the group B mother solution comprises the following raw materials in parts by weight: 37 parts of manganese sulfate, 39 parts of zinc sulfate, 31 parts of tetrahydrate calcium nitrate, 28 parts of potassium nitrate, 65 parts of diammonium hydrogen phosphate and 48 parts of ammonium nitrate;

the group C mother solution comprises the following raw materials in parts by weight: 62 parts of monopotassium phosphate, 50 parts of potassium sulfate, 55 parts of magnesium sulfate heptahydrate, 42 parts of red rice fermentation liquor and 46 parts of barley leaching liquor.

3. The method of claim 1, wherein the method comprises the steps of: fresh agaric, corn straw and oyster are pre-frozen at the temperature of-20 to-26 ℃, dried at the temperature of 100 to 150 ℃ for 10 to 48 hours, and then the dried powder is crushed and sieved by a sieve of 100 to 300 meshes to obtain uniform mixed powder.

4. The method of claim 1, wherein the method comprises the steps of: the red rice fermentation liquor in the group C mother liquor is prepared according to the proportion of 1: 2-4, adding water into red rice to prepare a slurry, adding glucose, black tea fungus and lactic acid bacteria into the slurry, and fermenting at 23-30 ℃ until the alcoholic strength is 4-9 vol% to obtain red rice fermentation liquor, wherein the red rice: the weight ratio of the glucose to the black tea fungus to the lactic acid bacteria is 1: 0.1-0.15: 0.01-0.03: 0.004-0.01.

5. The method of claim 1, wherein the method comprises the steps of: and drying the barley extract in the group C mother liquor at 80-120 ℃, grinding the dried barley germ into powder, adding aqueous solution of chloroform, dichloromethane or diethyl ether into the powder, and extracting for 2-4 times, wherein the volume ratio of the chloroform, the dichloromethane or the diethyl ether to the water is 1.8-2.5: 1.

6. the method of claim 1, wherein the method comprises the steps of: and extracting the barley extract in the group C mother liquor at 150-180 ℃.

7. The method of claim 1, wherein the method comprises the steps of: A. b, C mixing the three mother solutions at 50-80 deg.C, and stirring to obtain the nutrient solution.

Technical Field

The invention relates to the field of crop nutrients, in particular to a soilless culture nutrient solution and a preparation method thereof.

Background

The vegetables are leaf vegetables with tender leaves and petioles as using objects, are various in variety, rich in nutrition, contain chlorophyll, carotenoid, inorganic salt, vitamins and the like, and have strong oxidation resistance, so that the vegetables occupy a great position in daily life and agriculture of people; with the improvement of quality of life, people pursue vegetables such as nutrition and pollution-free vegetables, and our country is still in the research stage from soil cultivation to greenhouse cultivation to soilless nutrient medium cultivation to soilless nutrient solution cultivation, and the cultivated vegetables have certain difference, poor quality and less nutrient components compared with the conventional greenhouse cultivation, and can not meet the pursuit of people for food nutrition at present.

Disclosure of Invention

In view of the above, the present invention provides a soilless culture nutrient solution and a preparation method thereof, which solve the above problems.

The technical scheme of the invention is realized as follows: a soilless culture nutrient solution: comprises A, B, C three groups of mother liquor which are compounded according to the proportion of (0.5-1) to (0.8-1.5) to 1;

the group A mother solution comprises the following raw materials in parts by weight: 100-250 parts of urea, 90-150 parts of calcium nitrate, 50-70 parts of monopotassium phosphate and magnesium sulfate, 32-50 parts of calcium chloride, 20-38 parts of ferric trichloride, 21-35 parts of borax, 17-30 parts of fresh agaric, 20-36 parts of corn straw and 20-45 parts of oyster;

the group B mother solution comprises the following raw materials in parts by weight: 35-39 parts of manganese sulfate, 33-45 parts of zinc sulfate, 28-35 parts of calcium nitrate tetrahydrate, 20-36 parts of potassium nitrate, 45-85 parts of diammonium hydrogen phosphate and 42-65 parts of ammonium nitrate;

the group C mother solution comprises the following raw materials in parts by weight: 40-85 parts of monopotassium phosphate, 30-70 parts of potassium sulfate, 36-75 parts of magnesium sulfate heptahydrate, 29-55 parts of red rice fermentation liquor and 36-55 parts of barley leaching liquor.

Further, the soilless culture nutrient solution comprises A, B, C three groups of mother solutions which are compounded according to the ratio of 0.8:1.2: 1;

the group A mother solution comprises the following raw materials in parts by weight: 160 parts of urea, 120 parts of calcium nitrate, 60 parts of potassium dihydrogen phosphate and magnesium sulfate, 40 parts of calcium chloride, 29 parts of ferric trichloride, 28 parts of borax, 23 parts of fresh agaric, 28 parts of corn straw and 28 parts of oyster;

the group B mother solution comprises the following raw materials in parts by weight: 37 parts of manganese sulfate, 39 parts of zinc sulfate, 31 parts of tetrahydrate calcium nitrate, 28 parts of potassium nitrate, 65 parts of diammonium hydrogen phosphate and 48 parts of ammonium nitrate;

the group C mother solution comprises the following raw materials in parts by weight: 62 parts of monopotassium phosphate, 50 parts of potassium sulfate, 55 parts of magnesium sulfate heptahydrate, 42 parts of red rice fermentation liquor and 46 parts of barley leaching liquor.

Further, the preparation method of the soilless culture nutrient solution comprises the steps of pre-freezing fresh agaric powder, corn straw powder and oyster powder in the A group mother solution at-20 to-26 ℃, drying for 10-48 hours at 100-150 ℃, crushing the dried powder, and sieving with a 100-300-mesh sieve to obtain uniform mixed powder;

further, a preparation method of the soilless culture nutrient solution is characterized in that red rice fermentation liquor in the mother liquor of the group C is prepared according to the proportion of 1: 2-4, adding water into red rice to prepare a slurry, adding glucose, black tea fungus and lactic acid bacteria into the slurry, and fermenting at 23-30 ℃ until the alcoholic strength is 4-9 vol% to obtain red rice fermentation liquor, wherein the red rice: the weight ratio of the glucose to the black tea fungus to the lactic acid bacteria is 1: 0.1-0.15: 0.01-0.03: 0.004 to 0.01;

further, the preparation method of the soilless culture nutrient solution comprises the steps of drying the barley germs in the barley extracting solution in the group C mother solution at 80-120 ℃, grinding the barley germs into powder, adding chloroform, dichloromethane or ether water solution into the powder, and extracting for 2-4 times at 150-180 ℃, wherein the volume ratio of chloroform, dichloromethane or ether to water is 1.8-2.5: 1;

further, a preparation method of the soilless culture nutrient solution, A, B, C three groups of mother solutions are mixed and stirred at 50-80 ℃ to obtain the nutrient solution.

Compared with the prior art, the invention has the beneficial effects that:

the soilless culture nutrient solution disclosed by the invention is scientific in proportioning, can improve the disease resistance of vegetables, and has the same effect as soil culture in the aspects of fresh whole plant, high dry weight content, high plant height and plump stem leaves in soilless soil culture; the three groups of mother liquor comprise a plurality of nutrient elements, contain nutrient substances required by the whole growth and development stage of vegetables, and combine with nutrient elements extracted from pure nature, wherein, the group A mother liquor combines fertilizers such as agaric, corn straw, oyster and the like with urea and effectively promotes the delivery of the nutrient components of respective raw materials, the group B mother liquor contains trace elements required by the vegetables, the group C uses red rice and black tea fungus to ferment and is combined with barley extract, and the three groups of mother liquor are prepared according to proportion, so that the nutrient elements can be dredged from the roots and stems of the vegetables, the nutrients can be delivered, the nutrient contents of carotene protein and the like of the vegetables can be improved.

Detailed Description

In order to better understand the technical content of the invention, specific examples are provided below to further illustrate the invention.

The experimental methods used in the examples of the present invention are all conventional methods unless otherwise specified.

The materials, reagents and the like used in the examples of the present invention can be obtained commercially without specific description.