Special full water-soluble spray and drip irrigation formula fertilizer for green vegetables and preparation method thereof

Abstract

The invention discloses a full water-soluble spray and drip irrigation formula fertilizer special for green vegetables and a preparation method thereof. The preparation method comprises the following steps: adding screened raw materials into a heating kettle, and adding water; adding a pH regulator and a slow release agent into the heating kettle, and heating for reaction; and after the reaction is finished, adding an anti-crystallizing agent into the heating kettle, stirring, mixing and cooling to obtain a finished product. The special full water-soluble spray and drip irrigation formula fertilizer for green vegetables comprises the following components in percentage by mass: 35-44% of urea; 5%-15% of full water soluble phosphorus P2O5; 15 to 25 percent of full water-soluble potassium K2O; 1-3% of amino acid; 1-2% of an algae extract; 5.5 to 6.5% of a pH conditioning agent; and 0.5-2% of a slow release agent. The proportion of the urea, the full water-soluble phosphorus and the full water-soluble potassium in the formula is reasonably designed, balanced nutrient supply can be provided for the green vegetables, and comprehensive and healthy growth is promoted. The amino acid and the algae extract are rich in organic matters and growth hormones, so that the growth, development and stress resistance of plants are promoted.

Description

Technical Field

[0001] The invention relates to the technical field of water-soluble fertilizers, in particular to a fully water-soluble spray and drip irrigation formula fertilizer special for green vegetables and a preparation method thereof. Background Art

[0002] As one of the indispensable foods in people's daily diet, vegetables provide the human body with a variety of essential vitamins and minerals and other nutrients, and are recognized as a source of health benefits. Therefore, the vegetable industry is not only the leading industry in modern agricultural production, but also a vegetable basket project that affects the living standards of residents. Vegetable cultivation is conventionally carried out in the form of field cultivation, and vegetables are cultivated in the natural ecological environment without any insulation facilities, that is, open-air vegetables. However, open-air vegetable cultivation is greatly affected by seasonal and natural environmental restrictions, and it is impossible to provide seasonal vegetables to residents off-season. In recent years, facility vegetable cultivation has been continuously promoted and applied as a high-quality, high-yield, and high-efficiency cultivation method that uses artificial or modern agricultural engineering and mechanical technology to build certain facilities to provide vegetable crops with suitable environmental conditions such as temperature, light, water, and air. Since the season for vegetable facility cultivation is often difficult to achieve in open-field production, it is usually called off-season cultivation, protected land cultivation, etc. The use of facility cultivation can avoid the harm of adverse conditions such as low temperature, high temperature, heavy rain, and strong light exposure to vegetable production, and has been widely used in vegetable seedling cultivation, early spring cultivation, and delayed autumn cultivation. Facility vegetables are high-input, high-output, capital, technology and labor-intensive industries. Facility vegetables have high scientific and technological content, and the speed and degree of development of facility vegetables are one of the important indicators of the level of local agricultural modernization. At present, with the launch and establishment of the facility leafy vegetable production base project and the demonstration and promotion of supporting cultivation technology, the cultivation technology and product quality of facility vegetables are constantly improving. However, since the facility environment is different from the open field, blind fertilization and water use are more likely to cause the deterioration of soil properties in the vegetable field, nutritional imbalance of vegetable plants, and decline in quality and flavor. How to scientifically and effectively couple the water and fertilizer links in the production process of facility vegetables and scientifically manage field water and fertilizer according to the water and fertilizer demand characteristics of vegetables has become the key to restricting the high-quality and efficient production of facility vegetables. Green vegetables, as a major green leafy vegetable variety for daily consumption, are also being explored and studied in facility cultivation. How to integrate water and fertilizer management, realize fertilization while irrigation, improve soil water and fertilizer utilization efficiency, curb the trend of facility soil deterioration, and effectively improve green vegetable yield and quality is still a problem to be solved.

[0003] Some traditional fully water-soluble fertilizers may be susceptible to the influence of microorganisms in the soil, resulting in too fast nutrient release, increasing the risk of nutrient waste and loss. This leads to negative impacts on the environment, increases the cost of agricultural production, and may also have adverse effects on water quality. Some fully water-soluble fertilizers may cause uneven nutrient release during irrigation, resulting in overfertilization of some parts of the plant, while other parts may lack nutrients. This affects the uniform growth of green vegetables and reduces crop yield and quality. Summary of the invention

[0004] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0005] In view of the problems existing in the above and / or existing methods for preparing the fully water-soluble spray and drip irrigation formula fertilizer for green vegetables, the present invention is proposed.

[0006] Therefore, the problem to be solved by the present invention is how to provide a method for preparing a fully water-soluble spray and drip irrigation formula fertilizer specifically for green vegetables.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] The embodiment of the present invention provides a method for preparing a fully water-soluble spray and drip irrigation formula fertilizer for green vegetables, which comprises the following steps: adding screened raw materials into a heating kettle and adding water; adding a pH regulator and a slow-release agent into the heating kettle, and heating for reaction; after the reaction is completed, adding an anti-crystallization agent into the heating kettle, stirring and mixing, and cooling to obtain a finished product.

[0009] As a preferred embodiment of the method for preparing the fully water-soluble spray and drip irrigation formula fertilizer for green vegetables of the present invention, the fully water-soluble spray and drip irrigation formula fertilizer for green vegetables comprises the following components by mass percentage:

[0010] Urea: 35-44%;

[0011] Fully water-soluble phosphorus P2O5: 5-15%;

[0012] Fully water-soluble potassium K2O: 15-25%;

[0013] Amino acids: 1-3%;

[0014] Algae extract: 1-2%;

[0015] pH adjuster: 5.5-6.5%;

[0016] Sustained release agent: 0.5-2%.

[0017] As a preferred embodiment of the method for preparing the green vegetable-specific fully water-soluble spray and drip irrigation formula fertilizer of the present invention, the pH regulator comprises sodium bicarbonate and phosphoric acid.

[0018] As a preferred embodiment of the method for preparing the fully water-soluble spray and drip irrigation formula fertilizer for green vegetables of the present invention, the slow-release agent comprises a urea-formaldehyde compound, a sulfate slow-release agent and a polymer coating.

[0019] As a preferred embodiment of the method for preparing the fully water-soluble spray and drip irrigation formula fertilizer for green vegetables of the present invention, the formula fertilizer is prepared by adding water, heating and mixing all the components of the formula fertilizer according to the components and their mass percentages, stirring them evenly and then cooling them.

[0020] As a preferred solution of the preparation method of the green vegetable special fully water-soluble spray and drip irrigation formula fertilizer of the present invention, the pH regulator accounts for 2-6% of the total solution mass, and the pH of the solution is adjusted to 5.0-7.0; the slow-release agent accounts for 1-5% of the total solution mass.

[0021] As a preferred solution of the method for preparing the green vegetable-specific fully water-soluble spray and drip irrigation formula fertilizer of the present invention, the heating temperature is 55-70° C. and the heating time is 1-3 hours.

[0022] As a preferred solution of the method for preparing the fully water-soluble spray and drip irrigation formula fertilizer for green vegetables of the present invention, the anti-crystallization agent includes polyethylene glycol, which accounts for 2-4% of the total solution mass; the stirring speed is 200-400rpm / min, and the stirring time is 10-20 minutes.

[0023] The beneficial effects of the present invention are as follows: the ratio of urea, fully water-soluble phosphorus and fully water-soluble potassium in the formula of the present invention is reasonably designed, which can provide a balanced nutrient supply for green vegetables and promote comprehensive and healthy growth. Amino acids and algae extracts are rich in organic matter and growth hormones, which promote the growth, development and stress resistance of plants. Sodium bicarbonate and phosphoric acid are used as pH regulators to adjust the soil pH within a suitable range, provide the most suitable environment, and promote the absorption of nutrients. The combination of urea-formaldehyde compounds, sulfate slow-release agents and polymer coatings can achieve slow release of nitrogen, improve nutrient utilization efficiency, and reduce waste. The process of hydrothermal mixing and stirring is adopted to fully mix the components, ensure the uniformity and consistency of the formula, and improve production efficiency. Adding polyethylene glycol as an anti-crystallization agent can prevent the fertilizer from crystallizing during the preparation process and ensure product quality. By accurately adjusting the pH and accurately using the slow-release agent, the pollution of fertilizers to soil and water bodies is reduced, which meets the requirements of environmentally friendly agricultural production. The appropriate heating temperature, heating time, stirring speed and time are set to ensure the quality of the product and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0025] Figure 1 The present invention is a flow chart of a method for preparing a fully water-soluble spray and drip irrigation formula fertilizer specially used for green vegetables. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] At the same time, in the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper, lower, inner and outer" are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first, second or third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] Example 1

[0031] Reference Figure 1 , is an embodiment of the present invention, which provides a method for preparing a fully water-soluble spray and drip irrigation formula fertilizer for green vegetables, comprising:

[0032] S1: Add the screened raw materials into a heating kettle and add water.

[0033] S2: Add pH regulator and sustained-release agent into the heating kettle and heat to react.

[0034] Preferably, the pH regulator accounts for 2-6% of the total solution mass, and the pH of the solution is adjusted to 5.0-7.0; the sustained-release agent accounts for 1-5% of the total solution mass.

[0035] Preferably, the heating temperature is 55-70° C. and the heating time is 1-3 hours.

[0036] S3: After the reaction is completed, add an anti-crystallization agent into the heating kettle, stir and mix, and cool to obtain a finished product.

[0037] Preferably, the anti-crystallization agent includes polyethylene glycol, which accounts for 2-4% of the total solution mass; the stirring speed is 200-400 rpm / min, and the stirring time is 10-20 minutes.

[0038] Example 2

[0039] (1) The raw material composition is the following substances in parts by weight: urea: 35 parts, fully water-soluble phosphorus P2O5: 5 parts, fully water-soluble potassium K2O: 15 parts, amino acid: 2 parts, algae extract: 1 part, pH adjuster:

[0040] 5.5 parts, sustained release agent: 0.5 parts.

[0041] (2) Add the screened raw materials into a heating kettle and add water;

[0042] (3) adding a pH regulator and a sustained-release agent to a heating kettle and heating the kettle for reaction;

[0043] The pH regulator accounts for 2% of the total solution mass, and the pH of the solution is adjusted to 5.0-7.0; the sustained-release agent accounts for 1% of the total solution mass, the heating temperature is 55° C., and the heating time is 1 hour.

[0044] (4) After the reaction is completed, an anti-crystallization agent is added to the heating kettle, stirred and mixed, and cooled to obtain a finished product. The anti-crystallization agent includes polyethylene glycol, which accounts for 2% of the total solution mass; the stirring speed is 200 rpm / min, and the stirring time is 10 minutes.

[0045] Example 3

[0046] (1) The raw material composition is the following substances in parts by weight: urea: 40 parts, fully water-soluble phosphorus P2O5: 10 parts, fully water-soluble potassium K2O: 20 parts, amino acid: 3 parts, algae extract: 2 parts, pH adjuster: 6.0 parts, sustained-release agent: 1 part.

[0047] (2) Add the screened raw materials into a heating kettle and add water;

[0048] (3) adding a pH regulator and a sustained-release agent to a heating kettle and heating the kettle for reaction;

[0049] The pH regulator accounts for 2% of the total solution mass, and the pH of the solution is adjusted to 5.0-7.0; the sustained-release agent accounts for 1% of the total solution mass, the heating temperature is 55° C., and the heating time is 1 hour.

[0050] (4) After the reaction is completed, an anti-crystallization agent is added to the heating kettle, stirred and mixed, and cooled to obtain a finished product. The anti-crystallization agent includes polyethylene glycol, which accounts for 2% of the total solution mass; the stirring speed is 200 rpm / min, and the stirring time is 10 minutes.

[0051] Example 4

[0052] 1. Experimental treatment: The experiment was set up with 2 treatments, 3 replicates, randomly arranged, and each plot area was 67.8 M 2 , set up protective rows around the test area. Apply basal fertilizer on the first day, fertilizer for growing plants on the thirteenth day, and water-soluble fertilizer on the twenty-seventh day.

[0053]

[0054]

[0055] Table 1 Conventional fertilization treatment of dwarf green

[0056]

[0057] Table 2 Conventional fertilization treatment of dwarf green

[0058]

[0059] Table 3 Summary of yields in different fertilization treatments

[0060] 2. Results and Analysis

[0061] The harvest was conducted on the 39th day, and the yield of green vegetables in each test plot is shown in Table 3. From Table 3, it can be seen that the average yield of the test plot was 151.9 kg / mu higher than that of the conventional water-soluble fertilizer treatment 1, and the yield of treatment 2 was 151.9 kg / mu higher than that of treatment 1, an increase of 5.35%. The yield-increasing effect of the water-soluble fertilizer was obvious.

[0062] 3. Conclusion and analysis

[0063] 3.1 Under the conditions of this experiment, the treatment using formulated water-soluble fertilizers significantly increased the yield compared with conventional fertilization when the total pure fertilizer amount was basically the same. The yield of the second treatment using formulated water-soluble fertilizers increased by 5.35% compared with the first treatment using conventional fertilizers, indicating that applying formulated fertilizers under the soil fertility of this field can achieve yield-increasing benefits.

[0064] 3.2 From the perspective of economic benefits, the treatment with formulated water-soluble fertilizer increased the yield by 151.9 kg per mu compared with the conventional fertilization treatment. Calculated at a wholesale price of 2 yuan per kilogram, the income increased by 303.8 yuan, thus improving the economic benefits.

[0065] Based on the above test results, the application rate of 6.7 kg per mu of formula water-soluble fertilizer is relatively appropriate, and it can achieve good economic and environmental benefits. It is recommended to promote the use of 30-16-10 formula water-soluble fertilizer.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A fully water-soluble spray and drip irrigation formula fertilizer for green vegetables, comprising the following components by mass percentage: Urea: 35-44%; Fully water-soluble phosphorus P2O5: 5-15%; Fully water-soluble potassium K2O: 15-25%; Amino acids: 1-3%; Algae extract: 1-2%; pH adjuster: 5.5-6.5%; Sustained release agent: 0.5-2%.

2. The fully water-soluble spray and drip irrigation formula fertilizer for green vegetables as claimed in claim 1, characterized in that: The pH adjuster includes sodium bicarbonate and phosphoric acid.

3. The fully water-soluble spray and drip irrigation formula fertilizer for green vegetables as claimed in claim 1, characterized in that: The sustained-release agent comprises a urea-aldehyde compound, a sulfate sustained-release agent and a polymer coating.

4. The method for preparing the fully water-soluble spray and drip irrigation formula fertilizer for green vegetables as described in any one of claims 1 to 3 is to add water, heat and mix all the components of the formula fertilizer according to the components and their mass percentages of the formula fertilizer, stir them evenly, and then cool them to obtain the formula fertilizer.

5. The method for preparing the fully water-soluble spray and drip irrigation formula fertilizer for green vegetables as claimed in any one of claims 1 to 3, comprising the following steps: Add the screened raw materials into the heating kettle and add water; Adding a pH regulator and a sustained-release agent into a heating kettle and heating the kettle for reaction; After the reaction is completed, an anti-crystallization agent is added to the heating kettle, stirred and mixed, and cooled to obtain a finished product.

6. The method for preparing the fully water-soluble spray and drip irrigation formula fertilizer for green vegetables as claimed in claim 5, characterized in that: The pH regulator accounts for 2-6% of the total solution mass, and adjusts the pH of the solution to 5.0-7.0; the sustained-release agent accounts for 1-5% of the total solution mass.

7. The method for preparing the fully water-soluble spray and drip irrigation formula fertilizer for green vegetables as claimed in claim 5, characterized in that: The heating temperature is 55-70° C., and the heating time is 1-3 hours.

8. The method for preparing the fully water-soluble spray and drip irrigation formula fertilizer for green vegetables as claimed in claim 5, characterized in that: The anti-crystallization agent includes polyethylene glycol, which accounts for 2-4% of the total solution mass; the stirring speed is 200-400 rpm / min, and the stirring time is 10-20 minutes.

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