CN112174735A - High-concentration soilless culture nutrient solution and use method thereof - Google Patents
High-concentration soilless culture nutrient solution and use method thereof Download PDFInfo
- Publication number
- CN112174735A CN112174735A CN202011069571.2A CN202011069571A CN112174735A CN 112174735 A CN112174735 A CN 112174735A CN 202011069571 A CN202011069571 A CN 202011069571A CN 112174735 A CN112174735 A CN 112174735A
- Authority
- CN
- China
- Prior art keywords
- solution
- source
- soilless culture
- culture nutrient
- accounts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a high-concentration soilless culture nutrient solution and a using method thereof, the high-concentration soilless culture nutrient solution consists of a solution A and a solution B, the solution A contains a nitrogen source, a potassium source, a magnesium source, a manganese source, a boron source, a copper source, a zinc source, a molybdenum source and a phosphate radical, the solution B contains a nitrogen source, a potassium source, a calcium source, an iron source and a humic acid extracting solution, wherein the total nitrogen and the total potassium account for more than 5.5 wt.% of the total weight of the high-concentration soilless culture nutrient solution, the total phosphorus accounts for more than 5.5 wt.% of the weight of the solution A, and the pH values of the solution A and the solution B are 2.5-3.5. The highly concentrated soilless culture nutrient solution contains three main nutrients of nitrogen, phosphorus and potassium, trace elements and a component which ensures the growth promotion of crops, does not precipitate even in a concentrated state, and is easy to homogenize when diluted.
Description
Technical Field
The invention belongs to the technical field of soilless culture, and particularly relates to a high-concentration soilless culture nutrient solution and a use method thereof.
Background
Soilless culture is a plant culture technology developed in recent years and is characterized in that a planting technology that plants are separated from soil, namely, an artificially manufactured plant root system growing environment replaces the traditional soil planting environment. Inorganic nutrient solution is researched more, is used for the research work of high-grade inorganic and organic nutrient solution, and is still in the beginning stage at present.
The soilless culture has the advantages that the disease and insect pest propagation in soil can be avoided, pesticides are reduced or not used at all, and the product is clean, sanitary and healthy; saves water, fertilizer and labor, is beneficial to the modernization and automation of plant planting, and is not restricted by soil completely.
One of the core technologies of soilless culture is nutrient solution, namely soilless culture liquid fertilizer. The nutrition condition is very important, the plant nutrition directly relates to the growth state and the commodity value of the plant, and the accurate formula and the metering preparation of the soilless culture liquid fertilizer are particularly important.
At present, soilless culture liquid fertilizers have various formulas, the attributes (agricultural, industrial and laboratory analysis purities and the like) of raw materials are unclear, the purities are greatly different, factors such as formula errors, metering errors, preparation errors and the like are added, the effectiveness of calcium is greatly reduced by generating precipitates through reactions among ions in a solution, and the quality of soilless culture nutrient solutions has hidden troubles.
In order to reduce transportation cost and the like, the liquid fertilizer is usually transported in a concentrated state during supply and diluted by water before use, but the soilless culture liquid fertilizer on the market generally has the highest concentration multiple of 100-200 times and is mostly composed of a pure inorganic formula. Therefore, the inorganic nutrient solution may have a reduced organic nutrient content and an increased investment cost. Therefore, under the condition, it is necessary to select organic additive components with high quality and ensuring to promote the growth of crops. Humic acid begins to become an effective organic additive substance for vegetable water culture under the environment.
The pH value is an important index of soilless culture, but most of the prior methods adopt that the pH regulator is used for adjusting the pH value in the planting process, and the poor stability influences the rhizosphere absorption environment to cause abnormal plant growth.
Disclosure of Invention
In order to solve the problems of the soilless culture nutrient solution, the invention aims to provide a high-concentration soilless culture nutrient solution prepared by a precise formula and a metering preparation process and a use method thereof, wherein the formula is accurately metered, contains a humic acid extract capable of promoting plant growth, has the pH of 5.5-7.0 after dilution, is comprehensive in nutrition, has no sediment and is lack of elements, and the concentration multiple reaches 500 times.
The invention adopts the technical scheme for solving the technical problems that:
a high-concentration soilless culture nutrient solution consists of a solution A and a solution B, wherein the solution A contains a nitrogen source, a potassium source, a magnesium source, a manganese source, a boron source, a copper source, a zinc source, a molybdenum source and phosphate radicals, the solution B contains a nitrogen source, a potassium source, a calcium source, an iron source and a humic acid extracting solution, total nitrogen and total potassium account for more than 5.5 wt.% of the total weight of the high-concentration soilless culture nutrient solution, total phosphorus accounts for more than 5.5 wt.% of the weight of the solution A, and the pH values of the solution A and the solution B are 2.5-3.5.
Furthermore, calcium in the calcium source accounts for 8-20 wt% of the liquid B, and iron in the iron source accounts for less than 0.5-1.0 wt% of the liquid B.
Further, each element in the high-concentration soilless culture nutrient solution is added in the form of potassium nitrate, monopotassium phosphate, ammonium dihydrogen phosphate, magnesium sulfate, manganese sulfate, boric acid, copper sulfate, zinc sulfate, ammonium molybdate, calcium nitrate and chelated iron respectively.
Further, the chelated iron is iron ethylenediaminetetraacetic acid.
Further, the humic acid extracting solution is prepared by the following method: adding water into the crude product of humic acid, adding alkali to adjust the pH value to 5.0-7.0, stirring for 0.5-2 hours at 40-90 ℃, cooling to below 40 ℃, and carrying out solid-liquid separation to obtain supernatant, namely the humic acid extract.
Further, the content of the humic acid extracting solution accounts for 0.25-0.5 wt% of the B solution.
Further, the total nitrogen in the solution A accounts for more than 5.5 wt.% of the weight of the solution A, and the total potassium in the solution A accounts for more than 5.5 wt.% of the weight of the solution A; the total nitrogen in the liquid B accounts for more than 4.0 wt.% of the weight of the liquid B, and the total potassium in the liquid B accounts for more than 5.5 wt.% of the weight of the liquid B.
Further, in the solution A, magnesium accounts for less than 2.5-9.5 wt.% of the solution A, manganese accounts for 0.001-0.085 wt.% of the solution A, boron accounts for 0.001-0.200 wt.% of the solution A, copper accounts for 0.0001-0.0025 wt.% of the solution A, zinc accounts for 0.0001-0.0085 wt.% of the solution A, and molybdenum accounts for 0.00001-0.00090 wt.% of the solution A.
Further, the solution A contains:
potassium nitrate: 124.35-126.35 g/L;
potassium dihydrogen phosphate: 65.5-70.5 g/L;
ammonium dihydrogen phosphate: 18.5-22.5 g/L;
magnesium sulfate: 110.5-125.5 g/L;
manganese sulfate: 0.805-0.905 g/L;
boric acid: 1.35-1.45 g/L;
copper sulfate: 0.03-0.06 g/L;
zinc sulfate: 0.085-0.105 g/L;
ammonium molybdate: 0.0025-0.0065 g/L;
the solution B contains:
potassium nitrate: 124.35-126.35 g/L;
calcium nitrate: 124.35-126.35 g/L;
iron ethylenediaminetetraacetate: 4-6 g/L;
humic acid extracting solution: 2.5 to 5.0 g/L.
The invention also provides a method for diluting the high-concentration soilless culture nutrient solution, which comprises the steps of diluting the solution A and the solution B respectively by 200-500 times of water and mixing.
The invention also provides application of the high-concentration soilless culture nutrient solution in promoting growth of tomatoes and lettuce.
The pH value of the humic acid extract is within the range of 5.0-7.0, the humic acid extract is quickly dissolved after being diluted, and the components are uniform, so that the problem of blockage of a liquid conveying device is solved.
The high-concentration soilless culture nutrient solution provided by the invention has the following advantages and beneficial effects:
the present invention also provides a highly concentrated soilless culture nutrient solution containing three main nutrients in high concentration, a component ensuring a fertilizer for promoting the growth of crops and a trace amount of metal elements, and aims to provide the novel highly concentrated bi-component soilless culture nutrient solution which does not form precipitates even in a concentrated state and is easily homogenized upon dilution, and a method for preparing the same.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of an aerated stirred tank provided by an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings and data in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example 1
The high-concentration soilless culture nutrient solution provided by the invention consists of a solution A and a solution B, wherein the solution A contains:
potassium nitrate: 124.35-126.35 g/L;
potassium dihydrogen phosphate: 65.5-70.5 g/L;
ammonium dihydrogen phosphate: 18.5-22.5 g/L;
magnesium sulfate: 110.5-125.5 g/L;
manganese sulfate: 0.805-0.905 g/L;
boric acid: 1.35-1.45 g/L;
copper sulfate: 0.03-0.06 g/L;
zinc sulfate: 0.085-0.105 g/L;
ammonium molybdate: 0.0025-0.0065 g/L;
the solution B contains:
potassium nitrate: 124.35-126.35 g/L;
calcium nitrate: 124.35-126.35 g/L;
iron ethylenediaminetetraacetate: 4-6 g/L;
humic acid extracting solution: 2.5 to 5.0 g/L.
In order to obtain homogeneous mixing of various elements in the preparation process, the mixing device adopts an aeration stirring kettle 7 as shown in figure 1, an inner cavity 4 of the aeration stirring kettle 7 is provided with a stirring shaft 3, the stirring shaft 3 is of a hollow air guide structure, the upper end of the stirring shaft 3 is positioned outside the kettle and is communicated with an air pipe 1 through a sealing connecting piece 2, the middle lower end of the stirring shaft 3 is provided with an air injection nozzle 6, after the components of the liquid A or the liquid B are added into the inner cavity 4 of the aeration stirring kettle 7, compressed air (the air pressure is 0.5-0.8 MPa) is introduced into the stirring shaft 3 through the air pipe 1, the compressed air generates jet bubbles in the solution through the air injection nozzle 6, and the jet bubbles play a role in preventing precipitation and eliminating concentration difference along with the high-speed rotation of the stirring feather 5 in the aeration stirring kettle 7, so as. The mixing aeration time is generally 12 to 24 hours, preferably 12 hours. And introducing the mixed solution A or solution B into a liquid storage tank through a filter of 80-120 meshes, and preferably selecting a filter of 120 meshes.
In order to prevent the liquid A and the liquid B from being mixed by mistake in the preparation process, the liquid A and the liquid B are effectively isolated by adopting independent aeration stirring kettles. The material of the aeration stirring kettle is preferably stainless steel material, and more preferably 316 stainless steel material (wear-resistant, corrosion-resistant and oxidation-resistant).
The high-concentration soilless culture nutrient solution is 500 times concentrated, so that a water source is particularly important. The preparation production facility comprises water treatment and purification equipment, a conveying pipeline, a purified water storage barrel, an aeration stirring kettle, an air compressor, an air filter, a pressure regulating valve, a precision metering balance, a raw material tray, a raw material adding device, a timing control system, a filter, a concentrated solution storage tank, a canning machine and the like. Preferably selecting water treatment and purification facilities, further preferably selecting reverse osmosis method water purification equipment, effectively removing suspended matters, colloidal silt, humus, particulate impurities and calcium-magnesium chloride in water, wherein the desalination rate is more than 98 percent, the residual chlorine in water is less than or equal to 0.1ppm, and the conductivity of reverse osmosis produced water is less than or equal to 20 mu S/cm.
Adding the purified soft water into an aeration stirring kettle, and adding the required components into the aeration stirring kettle according to the sequence and the method (shown in table 1) at a stirring speed of 60-85 r/min.
TABLE 1 Components of solution A and B and preparation sequence
In order to achieve the purpose of long-term storage of the highly concentrated solution A and solution B, the pH of the prepared solution A and solution B is adjusted to 2.5-3.5 by using nitric acid, sulfuric acid or citric acid and other acids.
In order to verify the heavy metal content of the finished product of the high-concentration soilless culture nutrient solution, 500mL of the sample of the embodiment 1 is taken, and the detection result is as follows:
table 2 heavy Metal test results of SGS test company on the sample of example 1
As shown in Table 2, the results of the 5 heavy metal tests were not detected, confirming that the highly concentrated soilless culture nutrient solution provided by the present invention does not contain harmful substances.
The pH of the solution a prepared in example 1 was measured to be 3.45 and the pH of the solution B was measured to be 2.94 by the glass electrode method, and the pH of the solutions a and B was measured to be 1: the pH of the working solution obtained by mixing after 500 dilution is 6.42.
The solution A and the solution B in example 1 were each kept at a constant volume of 1L at 30 ℃ for 3 days without precipitation.
Example 2
The present example provides a highly concentrated soilless culture nutrient solution composed of solution a and solution B, which differs from example 1 in that: the humic acid in the solution B is common humic acid powder; the other components were the same as in example 1.
Adding the purified soft water into an aeration stirring kettle, and adding the required components into the aeration stirring kettle according to the sequence and the method (shown in table 1), wherein the stirring speed is 60-85 r/min.
The pH of the solution a prepared in example 2 was measured to be 3.45 and the pH of the solution B was measured to be 3.85 by the glass electrode method, and the pH of the solutions a and B was measured to be 1: the pH of the working solution obtained by mixing after 500 dilution is 6.15, and a large amount of precipitate exists at the bottom of the container.
Since NPK is widely recognized as four major nutritional elements with the largest plant growth requirement and has great influence on yield and commodity, excessive measurement can cause excessive symptoms, and examples 3-6 verify the performance of increased measurement of N, P, K and Ca in planting experiments.
Example 3
The present example provides a highly concentrated soilless culture nutrient solution composed of solution a and solution B, which differs from example 1 in that: the content of calcium element in the solution B is adjusted to be 4 times of the set and metered amount in the embodiment 1; the other conditions were the same as in example 1.
Adding the purified soft water into an aeration stirring kettle, and adding the required components into the aeration stirring kettle according to the sequence and the method (shown in table 1), wherein the stirring speed is 60-85 r/min, and trace precipitates are formed at the bottom of a container.
The pH of the solution a prepared in example 3 was measured to be 3.45 and the pH of the solution B was measured to be 3.10 by measuring the pH by the glass electrode method, and the pH of the solutions a and B were measured to be 1: the pH of the working solution obtained by mixing after 500 dilution is 6.65.
Example 4
The present example provides a highly concentrated soilless culture nutrient solution composed of solution a and solution B, which differs from example 1 in that: the nitrogen content in the solution A and the solution B is adjusted to be 4 times of the metered amount set in the embodiment 1; the other conditions were the same as in example 1.
Adding the purified soft water into an aeration stirring kettle, and adding the composition of the example 1 into the aeration stirring kettle according to the sequence (shown in the table 1) and the method, wherein the stirring speed is 60-85 r/min.
The pH of the solution a prepared in example 4 was measured to be 3.80 and the pH of the solution B was measured to be 3.10 by the glass electrode method, and the pH of the solutions a and B was measured to be 1: the pH of the working solution obtained by mixing after 500 dilution was 6.67.
Example 5
The present example provides a highly concentrated soilless culture nutrient solution composed of solution a and solution B, which differs from example 1 in that: the content of the phosphorus element in the solution A is adjusted to be 4 times of the metered amount set in the embodiment 1; the other conditions were the same as in example 1.
Adding the purified soft water into an aeration stirring kettle, and adding the required components into the aeration stirring kettle according to the sequence and the method (shown in table 1), wherein the stirring speed is 60-85 r/min.
The pH of the solution a prepared in example 5 was measured to be 3.2 and the pH of the solution B was measured to be 2.94 by measuring the pH by the glass electrode method, and the pH of the solutions a and B were measured to be 1: the pH of the working solution obtained by mixing after 500 dilution is 6.42.
Example 6
The present example provides a highly concentrated soilless culture nutrient solution composed of solution a and solution B, which differs from example 1 in that: the content of potassium element in the solution B is adjusted to be 4 times of the metered amount set in the embodiment 1; the other conditions were the same as in example 1.
Adding the purified soft water into an aeration stirring kettle, and adding the required components into the aeration stirring kettle according to the sequence and the method (shown in table 1), wherein the stirring speed is 60-85 r/min.
The pH of the solution a prepared in example 6 was 3.45 and the pH of the solution B was 3.20, as measured by the glass electrode method, and the pH of the solutions a and B were measured as 1: the pH of the working solution obtained by mixing after 500 dilution is 6.55.
Planting test:
the high-concentration soilless culture nutrient solution prepared in the examples 1-6 is prepared into working solution by taking annual lettuce and Hongfeng tomato as a verification prototype, and is used for planting the annual lettuce and Hongfeng tomato.
Verification example 1-1: lettuce of the variety year round (4-leaf and 1-heart hydroponics) was used as a test product and field planted in a deep liquid flow culture (DFT) facility for cultivation tests. 10 plants were established in each test area. The solution a and the solution B of the highly concentrated soilless culture nutrient solution provided in example 1 were diluted 500 times, respectively, and mixed to form a working solution, and the working solution was injected into a DFT hydroponic tank as a fertilizer and circulated by a circulation pump 4 times/day and 2 hours/time.
Verification examples 1 and 2: tomato seedlings of variety Hongfeng (4 leaves and 1 heart in hydroponic culture) were used as test products and were field planted on DFT deep liquid flow cultivation facilities for cultivation tests. 10 plants were established in each test area. The solution a and the solution B of the highly concentrated soilless culture nutrient solution provided in example 1 were diluted by 450 times, respectively, and mixed to form a working solution, and the working solution was injected into a DFT hydroponic tank as a fertilizer and circulated by a circulation pump 4 times/day and 2 hours/time.
As shown in the results of Table 3, the working solution prepared from the highly concentrated soilless culture nutrient solution provided in example 1 was injected into a DFT hydroponic tank at pH 6.42, and the EC (conductivity) of examples 1-1 was 1200. mu.s/cm and that of examples 1-2 was 1500. mu.s/cm.
TABLE 3 planting Effect of the highly concentrated soilless culture nutrient solution provided in example 1
Verification example 1-1: all-year lettuce; verification examples 1 and 2: hongfeng tomato, 4 ears/plant, 5-6 flower buds/ear; the content of elements in leaves refers to: element content (g) per 100g dry matter.
As shown in the results of Table 3, the working solution prepared from the highly concentrated soilless culture nutrient solution of example 1 was effective in acting on the growth of annual lettuce and Hongfeng tomato and increasing the growth of aerial parts. It was confirmed that humic acid has a promoting effect on the growth of aerial parts in addition to the effect of fertilizer components.
In addition, as shown in the results of table 3, the working solution prepared from the highly concentrated soilless culture nutrient solution of the present invention can significantly improve the yield of leafy vegetables as well as the yield of tomatoes. This example is short-term data of about 1 month after the start of harvest. It is believed that the increase in initial harvest as shown in table 3 has produced an effect of promoting crop growth and early harvest.
From the results of the two cultivation tests of the verification examples 1-1 and 1-2, it was found that, although there were differences in EC concentration, target crop, and working solution concentration, the working solution after diluting the highly concentrated soilless cultivation nutrient solution containing humic acid 500 times was effective in verification, and was an effective material for agricultural production and was practical.
Verification example 2: as described in example 2, since the humic acid added to the solution B is ordinary humic acid powder, a large amount of precipitation occurs at the bottom of the container after the solution is prepared by the same processing procedure as in example 1, and the significance of the test for planting is lost, which is ignored here.
Verification example 3: the high-concentration soilless culture nutrient solution provided by the example 3 is verified, the planting experimental methods and the species and the quantity of the verification examples 3-1 and 3-2 are respectively the same as those of the verification examples 1-1 and 1-2, no obvious symptom exists in the initial stage of planting, the typical symptoms in the later stage are that trace elements such as manganese, iron, zinc and boron are absorbed to a low extent due to excessive calcium, particularly boron, lettuce shows that leaves grow slowly, the leaves are wrinkled and rewound, and terminal buds are scorched; tomato shows that the plant is in an atrophied state, new leaves stop growing, leaves are green and yellow, branches and stems are filled with wood plugs and cracked, and the yield and commodity are greatly reduced.
TABLE 4 planting Effect of the highly concentrated soilless culture nutrient solution provided in example 3
Verification example 3-1: all-year lettuce; verification example 3-2: hongfeng tomato, 4 ears/plant, 5-6 flower buds/ear; (ii) a The content of calcium in leaves refers to: calcium content per 100g dry matter.
Verification example 4: the high-concentration soilless culture nutrient solution provided by the example 4 is verified, the experimental methods and the kinds and the quantity of the planting of the verification examples 4-1 and 4-2 are respectively the same as those of the verification examples 1-1 and 1-2, no obvious symptoms exist in the early stage of planting, the typical symptoms expressed in the later stage are excessive symptoms, the leaves are dark green or dark green in color, the root systems are thick, the growth is over-vigorous, the branches and stems are soft and overgrown, the disease resistance is low, the absorption of calcium is reduced due to antagonism, and the calcium deficiency symptoms are obvious. The lettuce has the phenomena of heart burning and dry edge, the front end of the tomato fruit is shrunk and dented and blackened (navel rot), and the yield and the marketability are greatly reduced.
TABLE 5 planting Effect of the highly concentrated soilless culture nutrient solution provided in example 4
Verification example 4-1: all-year lettuce; verification example 4-2: hongfeng tomato, 4 ears/plant, 5-6 flower buds/ear; the content of nitrogen in leaves refers to: nitrogen content (g) per 100g dry matter.
Verification example 5: the high-concentration soilless culture nutrient solution provided by the example 5 is verified, the planting experiment methods and the species number of the verification examples 5-1 and 5-2 are respectively the same as those of the verification examples 1-1 and 1-2, no obvious symptoms exist in the early stage of planting, and typical symptoms expressed in the later stage are P excess symptoms, yellowing of lower leaves, freckle-like yellow spots, thick stems, short and thick root systems and white roots. Induce the nutrient deficiency symptoms of iron deficiency, zinc deficiency, copper deficiency and boron deficiency. Lettuce has the symptoms of increased fiber and yellowing of leaves; tomatoes are characterized by leaf chlorosis and freckle-like etiolated spots. Greatly reducing the yield and the marketability.
TABLE 6 planting Effect of the highly concentrated soilless culture nutrient solution provided in example 5
Verification example 5-1: all-year lettuce; verification example 5-2: hongfeng tomato, 4 ears/plant, 5-6 flower buds/ear; the phosphorus content in the leaves refers to: phosphorus content (g) per 100g dry matter.
Verification example 6: the high-concentration soilless culture nutrient solution provided in example 6 was verified, and the planting experimental methods and the species numbers of the verification examples 6-1 and 6-2 were respectively the same as those of the verification examples 1-1 and 1-2, and no obvious symptoms were observed in the early stage of field planting, and the absorption of calcium and magnesium by lettuce was reduced in the later stage, so that putrefaction occurred. The tomato leaves are yellow, the leaves are curled up, the root system is dysplastic, the fruit has navel rot, and the yield and the commodity are greatly reduced.
TABLE 7 planting Effect of the highly concentrated soilless culture nutrient solution provided in example 6
Verification example 6-1: all-year lettuce; verification example 6-2: hongfeng tomato, 4 ears/plant, 5-6 flower buds/ear; the content of potassium in leaves refers to: potassium content (g) per 100g of dry matter.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A high-concentration soilless culture nutrient solution is characterized in that: the nutrient solution comprises a solution A and a solution B, wherein the solution A contains a nitrogen source, a potassium source, a magnesium source, a manganese source, a boron source, a copper source, a zinc source, a molybdenum source and a phosphate radical, the solution B contains a nitrogen source, a potassium source, a calcium source, an iron source and a humic acid extracting solution, wherein the total nitrogen and the total potassium account for more than 5.5 wt.% of the total weight of the high-concentration soilless culture nutrient solution, the total phosphorus accounts for more than 5.5 wt.% of the weight of the solution A, and the pH values of the solution A and the solution B are 2.5-3.5.
2. The highly concentrated soilless culture nutrient solution as claimed in claim 1, wherein: the humic acid extracting solution is prepared by the following method: adding water into the crude product of humic acid, adding alkali to adjust the pH value to 5.0-7.0, stirring for 0.5-2 hours at 40-90 ℃, cooling to below 40 ℃, and carrying out solid-liquid separation to obtain supernatant, namely the humic acid extract.
3. The highly concentrated soilless culture nutrient solution as claimed in claim 1, wherein: the content of the humic acid extracting solution accounts for 0.25-0.5 wt% of the B solution; calcium in the calcium source accounts for 8-20 wt% of the liquid B, and iron in the iron source accounts for less than 0.5-1.0 wt% of the liquid B.
4. The highly concentrated soilless culture nutrient solution as claimed in claim 1, wherein: the total nitrogen in the solution A accounts for more than 5.5 wt.% of the weight of the solution A, and the total potassium in the solution A accounts for more than 5.5 wt.% of the weight of the solution A; the total nitrogen in the liquid B accounts for more than 4.0 wt.% of the weight of the liquid B, and the total potassium in the liquid B accounts for more than 5.5 wt.% of the weight of the liquid B.
5. The highly concentrated soilless culture nutrient solution as claimed in claim 1, wherein: in the solution A, magnesium accounts for 2.5-9.5 wt% of the solution A, manganese accounts for 0.001-0.085 wt% of the solution A, boron accounts for 0.001-0.200 wt% of the solution A, copper accounts for 0.0001-0.0025 wt% of the solution A, zinc accounts for 0.0001-0.0085 wt% of the solution A, and molybdenum accounts for 0.00001-0.00090 wt% of the solution A.
6. The highly concentrated soilless culture nutrient solution as claimed in any one of claims 1 to 5 wherein: the elements in the high-concentration soilless culture nutrient solution are added in the forms of potassium nitrate, monopotassium phosphate, ammonium dihydrogen phosphate, magnesium sulfate, manganese sulfate, boric acid, copper sulfate, zinc sulfate, ammonium molybdate, calcium nitrate and chelated iron respectively.
7. The highly concentrated soilless culture nutrient solution as claimed in claim 6, wherein: the high-concentration soilless culture nutrient solution is prepared by water with the desalination rate of more than 98 percent, the residual chlorine in water of less than or equal to 0.1ppm and the reverse osmosis water production conductivity of less than or equal to 20 mu S/cm.
8. The highly concentrated soilless culture nutrient solution as claimed in claim 7, wherein: the solution A contains:
potassium nitrate: 124.35-126.35 g/L;
potassium dihydrogen phosphate: 65.5-70.5 g/L;
ammonium dihydrogen phosphate: 18.5-22.5 g/L;
magnesium sulfate: 110.5-125.5 g/L;
manganese sulfate: 0.805-0.905 g/L;
boric acid: 1.35-1.45 g/L;
copper sulfate: 0.03-0.06 g/L;
zinc sulfate: 0.085-0.105 g/L;
ammonium molybdate: 0.0025-0.0065 g/L;
the solution B contains:
potassium nitrate: 124.35-126.35 g/L;
calcium nitrate: 124.35-126.35 g/L;
iron ethylenediaminetetraacetate: 4-6 g/L;
humic acid extracting solution: 2.5 to 5.0 g/L.
9. A method of growing plants using the highly concentrated soilless culture nutrient solution of any one of claims 1-8, characterized in that: respectively diluting the solution A and the solution B with water at a volume ratio of 1:1 by 200-500 times, mixing, and adding into a plant planting facility.
10. The method of claim 9, wherein: the plant is tomato or lettuce.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011069571.2A CN112174735A (en) | 2020-09-30 | 2020-09-30 | High-concentration soilless culture nutrient solution and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011069571.2A CN112174735A (en) | 2020-09-30 | 2020-09-30 | High-concentration soilless culture nutrient solution and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112174735A true CN112174735A (en) | 2021-01-05 |
Family
ID=73948486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011069571.2A Pending CN112174735A (en) | 2020-09-30 | 2020-09-30 | High-concentration soilless culture nutrient solution and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112174735A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1169976A (en) * | 1996-07-08 | 1998-01-14 | 中国科学院山西煤炭化学研究所 | High concentrative non-flocculant humic acids complexed nutrient liquid and preparation thereof |
| CN102349551A (en) * | 2011-07-21 | 2012-02-15 | 北京林业大学 | Plant culturing medium regulator and preparation method thereof |
| CN104926430A (en) * | 2015-05-21 | 2015-09-23 | 北京农业智能装备技术研究中心 | Nutrient solution for hydroponic lettuce and preparation method and application of nutrient solution |
| CN105111010A (en) * | 2015-07-28 | 2015-12-02 | 成都市四友化学工业有限责任公司 | Trace element-containing humic acid plant nutrient solution |
| CN106495872A (en) * | 2016-11-01 | 2017-03-15 | 河源弘稼农业科技有限公司 | A kind of mill water culture nutrient solution and preparation method thereof |
| CN107151166A (en) * | 2017-06-27 | 2017-09-12 | 深圳前海弘稼科技有限公司 | Leaf vegetables mill water culture nutrient solution and preparation method thereof |
-
2020
- 2020-09-30 CN CN202011069571.2A patent/CN112174735A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1169976A (en) * | 1996-07-08 | 1998-01-14 | 中国科学院山西煤炭化学研究所 | High concentrative non-flocculant humic acids complexed nutrient liquid and preparation thereof |
| CN102349551A (en) * | 2011-07-21 | 2012-02-15 | 北京林业大学 | Plant culturing medium regulator and preparation method thereof |
| CN104926430A (en) * | 2015-05-21 | 2015-09-23 | 北京农业智能装备技术研究中心 | Nutrient solution for hydroponic lettuce and preparation method and application of nutrient solution |
| CN105111010A (en) * | 2015-07-28 | 2015-12-02 | 成都市四友化学工业有限责任公司 | Trace element-containing humic acid plant nutrient solution |
| CN106495872A (en) * | 2016-11-01 | 2017-03-15 | 河源弘稼农业科技有限公司 | A kind of mill water culture nutrient solution and preparation method thereof |
| CN107151166A (en) * | 2017-06-27 | 2017-09-12 | 深圳前海弘稼科技有限公司 | Leaf vegetables mill water culture nutrient solution and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 马一科等: "试验温室番茄营养液深液流栽培与研究", 《安徽农业科学》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Siddiqi et al. | Effects of ammonium and inorganic carbon enrichment on growth and yield of a hydroponic tomato crop | |
| Calvert et al. | Effects of carbon dioxide enrichment on growth, development and yield of glasshouse tomatoes. I. Responses to controlled concentrations | |
| US10815159B2 (en) | Nutrient system | |
| CN101250075B (en) | Ginseng foliar fertilizer | |
| CN105693409A (en) | Flower soilless culture nutrient solution | |
| CN107556070A (en) | A kind of oenanthe stolonifera mill water culture nutrient solution and preparation method thereof | |
| CN109168516A (en) | A kind of good quality and high output fertilizing method of grape | |
| CN107500864A (en) | A kind of vegetable aquaculture nutrient solution and preparation method thereof and application method | |
| CN105859407A (en) | Soilless culture nutrient solution for cucumber and preparation method thereof | |
| CN111226940B (en) | Plant growth regulator for enhancing absorption and utilization of plant nitrogen | |
| CN101734977A (en) | Nutrient solution of hydroponic flowers and preparation method thereof | |
| Yang et al. | Nitrate uptake kinetics of grapevine under root restriction | |
| CN111362750A (en) | Soil conditioner for improving wine grape yellowing and preparation method thereof | |
| CN110692455A (en) | High-sugar tomato substrate cultivation method | |
| CN100525627C (en) | Nutritional type ginseng growth regulator | |
| CN113728884A (en) | Water and fertilizer integrated fertilizing and planting method for pitaya based on LED light supplementing and flower forcing | |
| CN113229028A (en) | Fertilizer application method for saving fertilizer and increasing yield of bananas | |
| CN111606748A (en) | Sugar orange special package fertilizer for increasing yield and improving quality of southern acid soil and application method thereof | |
| CN108575390B (en) | Research method for promoting tomato growth by partially replacing chemical fertilizer with biogas slurry | |
| WO2018014169A1 (en) | Method for preventing and controlling citrus greening disease and yellows disease by applying biological carbon fertilizer | |
| CN112174735A (en) | High-concentration soilless culture nutrient solution and use method thereof | |
| Cankurt et al. | The effects of some organic compounds on yield and fruit quality in Albion strawberry (Fragaria x ananassa Duch) cultivar | |
| CN112997801A (en) | Yield increasing agent for increasing yield of morchella and application thereof | |
| CN113402339A (en) | Nutrient solution special for soilless culture of melons and preparation method and application thereof | |
| CN111333471A (en) | Full-element quick-acting compound fertilizer special for tomatoes |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210105 |