Multi-effect salt-reducing fertilizer system structure

Abstract

The utility model discloses a multi-effect salt-reducing fertilizer system structure which comprises a salt-reducing functional unit, a soil improvement structure unit, a trace element supply unit, a slow-release fertilizer unit, a plant growth regulating unit and a hollow frame. The salt reducing functional unit is located in the hollow frame and used for reducing the salt concentration of the soil and adjusting the pH value; the soil improvement structure unit surrounds the salt reduction function unit to improve the air permeability and the water-retaining property of the soil; the trace element supply unit is embedded into pores of the soil improvement structure unit and slowly releases trace elements such as iron, zinc and boron; the slow-release fertilizer unit wraps the outer layer, and nitrogen, phosphorus and potassium nutrients are released for a long time; the plant growth regulating units are distributed in interlamellar gaps and release hormones to promote crop root development; the hollow frame provides support and separation. The system achieves the synergistic effect of salt reduction, improvement, fertilizer supply and crop growth promotion, and is suitable for improvement of saline-alkali soil and alkaline soil.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural fertilizer technical field more specifically relates to a multi -effect salt -reducing fertilizer system structure. BACKGROUND

[0002] Soil salinization is a long-standing problem in agricultural production, especially in alkaline soils and saline-alkali soils, the high salt concentration and pH value in the soil is alkaline seriously affect the root growth and nutrient absorption capacity of crops, leading to crop yield reduction or even absolute loss. At the same time, long-term use of chemical fertilizer can improve soil fertility in the short term, but the use of high salt chemical fertilizer aggravates the problem of soil salt accumulation. In addition, due to poor soil permeability, loose or hard structure, low fertilizer utilization rate, soil improvement and farmland ecological environment restoration is difficult.

[0003] The existing technology for improving saline-alkali soil mainly focuses on the following aspects:

[0004] 1. Salt reduction treatment: by adding acid substances or soluble salts to reduce soil salinity. However, this kind of treatment is usually a single means, the effect is not enough lasting, and may cause local acidification of soil, affecting the overall balance of soil.

[0005] 2. Soil improvement: by adding organic matter or physical structure modifier to improve the air permeability and water retention of soil, but this kind of technology often needs a long improvement period, and the effect is limited in high saline-alkali land.

[0006] 3. Nutrient supplement: the chemical fertilizer on the market usually provides a large amount of elements (such as nitrogen, phosphorus, potassium), but ignores the balance of soil trace elements, at the same time, excessive use of fertilizer can easily cause environmental pollution and loss of fertilizer efficiency.

[0007] 4. Plant regulation: in some cases, plant hormones are used to promote crop growth, but when the hormone is directly applied to the soil, it is difficult to control the release speed, the action time is short, and the long-term demand of crops cannot be met.

[0008] Although the above methods can solve the problem of soil salinity to some extent, there are generally the following problems:

[0009] 5. Single function, difficult to comprehensive management: the existing technology usually only solves a certain problem in soil, such as salt reduction or improvement, but ignores the complex relationship between soil salt, structure, nutrients and crop growth.

[0010] 6. Short-term effect, lack of long-term mechanism: many technologies can be effective in the short term, but lack of durability design, the fertilizer efficiency is lost fast, and the function effect of improving soil structure or balancing soil nutrients is difficult to maintain.

[0011] 7. Ecological problems: Improper use of fertilizers and amendments can lead to uneven distribution of salts and nutrients in the soil, further affecting the stability of the soil ecosystem.

[0012] To this end, a new multi-effect fertilizer system structure is needed that can improve soil salinization while comprehensively addressing soil structural problems, providing the necessary nutrients for crop growth, and ensuring that the multiple functions of salt reduction, improvement, fertilization, and promotion of crop growth can be achieved synergistically. Invention content

[0013] To solve the above problems, the utility model provides a multi-effect salt-reducing fertilizer system structure, which effectively improves the problem of soil salinization, improves soil fertility, and promotes the healthy growth of crops through the rational structure layout and synergistic effect of each functional unit.

[0014] To achieve the above purpose, the utility model provides the following technical scheme, mainly including:

[0015] A multi-effect salt-reducing fertilizer system structure, comprising the following structures:

[0016] Salt-reducing functional unit: located in the core layer of the system, filled inside the hollow frame. Composed of soluble salt particles and acidic substance particles, which can quickly dissolve to reduce soil salinity and slowly release acidic substances to adjust soil pH. Provide rapid salt adjustment and create basic conditions for the function of soil improvement unit.

[0017] Soil improvement structure unit: surrounds the salt-reducing functional unit and is arranged in a ring shape. Composed of multiple layers of porous materials, which can fill soil voids, improve air permeability and water retention capacity. Absorb the salt and acidic substances released by the salt-reducing unit, stabilize the soil structure, and provide support for other functional units.

[0018] Trace element supply unit: embedded in the pores of the soil improvement structure unit, distributed in a granular form. Composed of slow-release particles of iron, zinc, boron, and other trace elements, coated with a protective film. Slowly release trace elements to supplement the nutrients required for crop growth.

[0019] Slow-release fertilizer unit: covers the outermost layer of the system, forming a protective shell. Composed of slow-release fertilizer particles, with a polymeric film coating on the particles, which releases nutrients gradually by adjusting the pore size of the film. Provides long-term basic nutrients (such as nitrogen, phosphorus, and potassium) for crops and prevents rapid nutrient loss.

[0020] Plant growth regulation unit: distributed in the gap between the slow-release fertilizer unit and the soil improvement unit, in the form of microcapsules. Contains plant hormones (such as gibberellins) and is coated with a protective film. Promotes root development, enhances plant stress resistance, and improves salt tolerance.

[0021] Hollow frame: located in the center of the system, through the whole structure. Hollow design, inner cavity filling salt reduction function unit. Made of corrosion-resistant, high-strength material, the outer wall is porous, which facilitates the internal material transfer. Provide physical support to ensure the uniformity of the distribution of each functional unit, and enhance the overall stability of the structure.

[0022] Through the above technical solutions, compared with the prior art, the beneficial effects of the utility model are:

[0023] 1. Multi-effect synergy, comprehensive solution to soil salinization problem:

[0024] The salt reduction function unit of the system core adopts the combination of soluble salt particles and acidic substance particles, which can quickly reduce the concentration of salt in the soil and effectively adjust the pH value of the soil, so that the alkaline soil tends to be neutral or weakly acidic, providing a good soil environment for crop growth.

[0025] The soil improvement structure unit is designed through porous material, which further adsorbs the salt and acidic substances released by the salt reduction function unit, avoiding the problem of secondary salinization, and improving the air permeability and water retention capacity of the soil.

[0026] 2. Layered design, function unit synergy:

[0027] The system adopts a layered structure, and the layout of each functional unit is reasonable, which can play its own function at different levels. For example, the core salt reduction function unit provides material support for the soil improvement structure unit, and the soil improvement unit provides physical support for the trace element supply unit and the slow-release fertilizer unit.

[0028] Each functional unit does not interfere with each other, but can work together to significantly improve the overall efficiency and stability of the system.

[0029] 3. Long-acting fertilizer, improve nutrient utilization:

[0030] The outer slow-release fertilizer unit adopts polymer coating technology, which gradually releases nitrogen, phosphorus, potassium and other basic nutrients through slow-release, avoiding the waste caused by one-time release of nutrients, and improving the utilization efficiency of nutrients.

[0031] The design of the slow-release fertilizer unit is closely matched with the soil improvement structure unit, and the nutrient release can fully penetrate into the soil, providing uniform and long-acting nutrient support for crops, effectively extending the action period of the fertilizer.

[0032] 4. Promote crop growth and improve salt tolerance:

[0033] The plant growth regulating unit in the system is distributed in the form of microcapsules containing plant hormones such as gibberellins and cytokinins, which can gradually release and promote the development and extension of crop root systems, and enhance the adaptability of root systems to saline-alkali environments.

[0034] The plant hormones and the nutrient components of the slow-release fertilizer synergize to significantly improve the tolerance of crops to soil salt and improve the stress resistance of crops.

[0035] 5. Trace element supplementation, balancing soil nutrients:

[0036] The trace element supply unit in the system is embedded in the pores of the soil improvement unit, and uses slow-release technology to gradually release essential trace elements such as iron, zinc, and boron, which can make up for the lack of trace elements in the soil.

[0037] The supplementation of trace elements makes the soil nutrients more balanced, thereby promoting the overall growth of crops and improving yield and quality.

[0038] 6. Stable structure, strong adaptability:

[0039] The hollow frame in the system serves as the core support structure, made of corrosion-resistant and high-strength materials. Its porous design not only ensures the material transfer inside the system, but also enhances the structural stability of the system, preventing displacement or functional weakening of the functional units due to external forces or environmental changes.

[0040] The overall structure of the system is compact, and can adapt to the application requirements of different types of saline-alkali soils, while the installation, transportation and use process are simple and convenient.

[0041] 7. Ecologically friendly, reducing environmental pollution:

[0042] The slow-release technology and layered design effectively control the release rate of nutrients, avoiding nutrient loss and environmental pollution caused by excessive release of fertilizers.

[0043] The salt reduction function unit and the soil improvement unit in the system can effectively reduce the impact of salt in the soil on groundwater and the surrounding environment, achieving the dual effect of soil remediation and ecological protection.

[0044] 8. Strong adjustability, wide applicability:

[0045] The material ratio, particle size and distribution density of each functional unit of the system can be adjusted according to different soil types, saline-alkali degrees and crop requirements, with strong flexibility and adaptability.

[0046] This system is not only suitable for alkaline soil, but also can be widely used in saline-alkali soil improvement, farmland reclamation and grassland restoration, etc. BRIEF DESCRIPTION OF DRAWINGS

[0047] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings described below are only part of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0048] Fig. 1 It is a schematic view of the three-dimensional structure of the present application.

[0049] Fig. 2 It is a sectional view of the three-dimensional structure of the present application.

[0050] Fig. 3 It is a sectional view of the three-dimensional structure of the present application.

[0051] Fig. 4 It is a sectional view of the three-dimensional structure of the hollow frame in the present application.

[0052] 1-salt reduction function unit, 2-soil improvement structure unit, 3-microelement supply unit, 4-slow-release fertilizer unit, 5-plant growth regulation unit, 6-hollow frame. DETAILED DESCRIPTION

[0053] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0054] EMBODIMENT

[0055] A multi-effect salt-reducing fertilizer system structure, as shown in Figs. 1 to 4 , comprises the following structures:

[0056] Salt reduction function unit 1:

[0057] It is arranged at the core position of the system and installed in the internal cavity of the hollow frame 6.

[0058] Material composition: soluble salt particles (such as ammonium sulfate) and acidic substance particles (such as calcium sulfate) with a particle size of 1-3 mm are selected, and a microporous protective film with a thickness of 0.05-0.1 mm is coated outside to control the slow-release speed of the substances.

[0059] Function: rapid dissolution and release in the soil, reduction of soil salt concentration and adjustment of pH value.

[0060] Soil improvement structure unit 2:

[0061] Surrounding the salt reduction function unit 1, distributed in a ring shape, fixed on the outer wall of the hollow frame 6.

[0062] Material composition: Use porous materials (such as humic acid complex and biochar materials), single-layer thickness is 10mm, three layers are stacked, total thickness is 30mm, pore size is 0.2-0.5mm, has the ability to adsorb and fix salt and acidic substances.

[0063] Function: Improve soil permeability and water retention capacity, while adsorbing the salt and acidic substances released by the salt reduction function unit 1, prevent secondary salinization.

[0064] Trace element supply unit 3:

[0065] Uniformly embedded in the pores of the soil improvement structure unit 2.

[0066] Material composition: Iron, zinc, boron and other trace element slow-release particles, particle size is 2-4mm, outer coated with a 0.1mm thick polymer protective film.

[0067] Function: Slowly release trace elements, provide balanced trace nutrient support for crops.

[0068] Slow-release fertilizer unit 4:

[0069] Wrap the outer layer of the entire system to form a protective shell.

[0070] Material composition: composed of nitrogen, phosphorus and potassium compound slow-release fertilizer particles, particle size is 3-6mm, the outer layer of the particles is wrapped with a polymer film, the film thickness is 0.1-0.3mm, the nutrient release time can last up to 90-120 days.

[0071] Function: Provide long-term nutrient support for crops, while protecting the internal structure.

[0072] Plant growth regulation unit 5:

[0073] Distributed on the inner and outer surfaces of the slow-release fertilizer unit 4 and the interlayer gap of the soil improvement structure unit 2.

[0074] Material composition: microcapsule particles, containing gibberellin, cytokinin and other plant hormones, microcapsule diameter is 1-2mm, outer layer is a porous polymer protective shell.

[0075] Function: Gradually release plant hormones, promote crop root growth and improve salt tolerance.

[0076] Hollow frame 6:

[0077] Located at the center of the system, made of corrosion-resistant, high-strength alloy material.

[0078] Structure: The outer wall is designed as a honeycomb porous structure with a pore size of 0.5-1mm, and the internal cavity is used to accommodate the salt reduction functional unit 1.

[0079] Function: Provide physical support for the system, connect and separate each functional unit, and ensure the stability of the structure and the uniform distribution of the functional units.

[0080] 2. Manufacturing and assembly

[0081] Preparation of salt reduction functional unit 1:

[0082] Mix ammonium sulfate particles and calcium sulfate particles in a weight ratio of 1:2, and make particles with a particle size of 1-3mm by spray granulation method;

[0083] A 0.05mm microporous protective film is formed on the outer surface of the particles using vacuum spraying technology.

[0084] Preparation of soil improvement structure unit 2:

[0085] Mix humic acid complex and biochar material, and make porous plates through hot pressing process, each with a thickness of 10mm;

[0086] Stack three porous plates and fix them on the outer wall of the hollow frame 6.

[0087] Embedding of trace element supply unit 3:

[0088] Coat iron, zinc, boron and other trace element particles with a 0.1mm thick polymer protective film;

[0089] Fill the prepared particles evenly into the pores of the soil improvement unit 2 to ensure uniform distribution.

[0090] Assembly of slow-release fertilizer unit 4:

[0091] Prepare nitrogen, phosphorus and potassium slow-release particles, and distribute them evenly on the outermost layer of the system, and fix them to form an integral outer shell with an adhesive.

[0092] Arrangement of plant growth regulating unit 5:

[0093] Disperse the prepared microcapsule particles evenly on the inner and outer surfaces of the slow-release fertilizer unit 4 and the interlayer gaps of the soil improvement structure unit 2.

[0094] Overall assembly of the system:

[0095] Take the hollow frame 6 as the core, and fill the salt reduction functional unit 1 into its inner cavity;

[0096] According to the layered design, install the soil improvement structure unit 2, the trace element supply unit 3 and the slow-release fertilizer unit 4 in turn, and finally form a complete system structure.

[0097] 3. Working process

[0098] Salt reduction process:

[0099] In the soil environment, the soluble salt particles of the salt reduction functional unit 1 dissolve rapidly, reducing the salt concentration in the soil, while the acidic substance particles are released slowly, adjusting the pH value of the soil.

[0100] Soil improvement:

[0101] The soil improvement structure unit 2 adsorbs the excess salt released by the salt reduction functional unit 1 through the porous material, avoiding excessive local soil salt, while improving the air permeability and water retention of the soil.

[0102] Nutrient supply:

[0103] The trace element supply unit 3 slowly releases trace elements such as iron, zinc, and boron, and the slow-release fertilizer unit 4 gradually releases nitrogen, phosphorus, and potassium nutrients, providing long-term stable nutritional support for crops.

[0104] Crop growth promotion:

[0105] The microcapsule particles in the plant growth regulation unit 5 release plant hormones, promoting root development, improving the absorption capacity of salt and nutrients, and enhancing the stress resistance of crops.

[0106] 4. Application steps

[0107] Application method:

[0108] The multi-effect salt reduction fertilizer system is directly applied to the planting area of saline-alkali land or alkaline soil, uniformly distributed at an amount of 5-10 kg per mu of land, and then turned into the soil with a burial depth of 5-10 cm.

[0109] Applicable scope:

[0110] It is suitable for mild to moderate saline-alkali land improvement, alkaline soil improvement, and farmland reclamation, and can also be used for agricultural planting of vegetables, fruit trees, and field crops.

[0111] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between each embodiment can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the related parts can be referred to the method part.

[0112] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application 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

1. A multi-effect salt-reducing fertilizer system structure, characterized in that, The system comprises the following units: a salt reduction unit (1) located in the core layer of the system, used for reducing soil salt content and adjusting soil pH, the salt reduction unit being composed of soluble salt particles and acid particles; a soil structure improvement unit (2) arranged around the salt reduction unit, used for improving soil air permeability and water retention, the soil structure improvement unit being composed of porous materials and arranged in a ring shape; a trace element supply unit (3) embedded in the soil structure improvement unit, used for releasing trace elements such as iron, zinc and boron, the trace element supply unit being a slow-release granular material; a slow-release fertilizer unit (4) arranged in the outermost layer of the system, used for providing long-acting basic nutrients, the slow-release fertilizer unit being composed of slow-release fertilizer particles coated with a polymer film and arranged in a shell shape around the system; a plant growth regulation unit (5) arranged in the gap between the soil structure improvement unit and the slow-release fertilizer unit, used for releasing plant hormones, the plant growth regulation unit being microcapsule particles containing plant hormones; a hollow frame (6) arranged at the center of the system, the inner cavity being used for accommodating the salt reduction unit, the hollow frame being a porous ring structure used for supporting and separating the functional units.

2. The multiple-effect desalination fertilizer system structure of claim 1, wherein, The particle size of the soluble salt particles of the salt reduction unit is 1-3 mm, the particle size of the acid particles is 2-5 mm, and the outer surface is coated with a porous protective film to control the release rate.

3. The multi-effect desalination fertilizer system structure according to claim 1, wherein, The soil structure improvement unit is a laminated porous material, the thickness of a single layer being 10-20 mm, and the unit has the functions of adsorbing and fixing salt.

4. The multiple-effect desalination fertilizer system structure of claim 1, wherein, The particle size of the slow-release particles of the trace element supply unit is 2-4 mm, and the outer layer is coated with a polymer protective film, which can slowly release trace elements such as iron, zinc and boron.

5. The multi-effect desalination fertilizer system structure according to claim 1, wherein, The particle size of the slow-release fertilizer unit is 3-6 mm, and the thickness of the polymer film is 0.1-0.3 mm, the polymer film controlling the slow-release rate of nutrients by adjusting the pore size.

6. The multiple-effect desalination fertilizer system structure of claim 1, wherein, The particle size of the microcapsule particles of the plant growth regulation unit is 1-2 mm, and the outer surface is coated with a polymer film, which contains plant hormones such as gibberellins, the microcapsule particles being distributed in the gap between the slow-release fertilizer unit and the soil structure improvement unit.

7. The multi-effect salt-reducing fertilizer system structure according to claim 1, wherein, The hollow frame is made of a corrosion-resistant high-strength material, the outer wall being designed as a porous structure, used for connecting the salt reduction unit and the soil structure improvement unit, and ensuring stable transmission of internal substances.

8. The multiple-effect desalination fertilizer system structure of claim 1, wherein, The outer layer of the slow-release fertilizer unit is in close contact with the soil structure improvement unit, and provides a position for the plant growth regulation unit to adhere and distribute.

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