JP2000044376A - Fertilizer sensitive to acidification of soil, and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fertilizer capable of simply and surely neutralizing acidic soil having reached a prescribed hydrogen ion index, capable of promoting the activation and breeding of microorganisms, and further capable of realizing the good growths of plants. SOLUTION: This fertilizer sensitive to the acidification of soil is obtained by mixing a fertilizer component with a soil-neutralizing component, granulating the mixture to form aggregate-like cores 2 each having a diameter of about 3-4 mm, forming an intermediate layer 3 comprising nutritive ingredients for microorganisms on the surface of each formed aggregate-like core 2 in a layer thickness of about 55 μm, and then covering the surface of each intermediate layer 3 with a soil acidity-sensitive layer 4 in a film layer thickness of about 10 μm. When the hydrogen ion index of soil reaches pH 5, the soil acidity- sensitive layer 4 senses the pH 5, and the soil acidity-sensitive layer 4 is collapsed to expose the intermediate layer 3, thereby activating microorganisms in the soil. The fertilizer component and the soil-neutralizing component of the aggregate-like core is subsequently eluted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a granular fertilizer which is applied to the soil of a potted plant, a flower bed, a field or the like to promote the smooth growth of a plant. To provide a soil acidification-sensitive fertilizer having a novel structure and a method for producing a novel soil acidification-sensitive fertilizer, which can be gradually transformed into soil suitable for plant growth. Is what you do.

[0002]

2. Description of the Related Art In Japan, the amount of rainfall throughout the year is greater than the amount of water that evaporates from the surface of the ground, so that water that has penetrated into the soil leaches out bases, causing acidification of the land. Taking into account the fact that many plants prefer neutral or slightly alkaline neutral soils, of course, this is of course not only for farmers and foresters wishing for healthy plant growth in Japan. In addition, there is an extremely high level of interest in improving acid soils even for ordinary people who are trying to build vegetable gardens and flower beds for their hobbies.

[0003] For example, looking at the improvement of acid soil in agricultural production, many farmers often try to neutralize acid soil in the shortest possible time and carry out efficient soil management, often using lime or lime. Although it is necessary to apply fortress lime, if it is necessary to improve the soil properly to the extent appropriate for the target crop and neutralize the soil, apply the appropriate amount of calcium carbonate in several parts. Each time, the hydrogen ion index of the soil is measured, and the application must be repeated based on the result to obtain the optimum pH value.
Since it takes a lot of work and time to obtain good soil quality, the planting time for crops will be reached without sufficient soil improvement due to insufficient time. There were many problems.

In order to eliminate such inconvenience, a buffer curve for obtaining a required amount of lime for each field is graphed,
In each case, measure the hydrogen ion index of the soil before application, determine the required amount per area of lime by referring to the previous graph, and apply a neutralizing agent according to the amount However, these tasks require considerable time and effort to create graphs, and the value of the hydrogen ion index varies from place to place in the same premises so that a substantially homogenized soil can be obtained. Farmers, who have to produce crops all year round, cannot be completely involved in improving the soil quality, Relying on experience to improve the soil quality in as short a time as possible, the current situation is that production continues with fairly rough soil management as a result.

[0005] A similar difficulty in neutralizing the soil can be said to be common horticulture. Recently, gardening, which has been actively performed as gardening, is particularly difficult in general. Just as amateur people who have no connection with grappling will work on it, even more often, unexpected failures will result from failure of soil management, so that flowers such as gardens and potted plants are blooming richly, We have been working hard to improve the soil environment by preparing water drainage and applying fertilizers on holidays, and using various knowledge from above to pay attention to color scheme and balance etc. Even if it was planted, it would not be possible to achieve the results that were imagined even at the time of flowering, but in some cases it would not result in flowering and could result in sight of a grim sight But the fact A.

[0006] In view of the above situation, the present invention is suitable for not only those who are engaged in agriculture and forestry, but also those who have little knowledge and experience, such as those who enjoy gardening as a hobby. When it reaches the acid side of the predetermined hydrogen ion exponent that adversely affects the growth of plants, it senses this and naturally acts as a neutralizer, promotes the activation and reproduction of microorganisms, and promotes a good environment for growing plants. I realized the necessity of fertilizer to realize the soil quality, started developing and researching it quickly, repeated trial and error for a long time, many trial productions, experiments, and finally, The present invention has succeeded in realizing a soil acidification-sensitive fertilizer having a novel structure capable of achieving the object, and a method for producing a novel soil acidification-sensitive fertilizer. Representative implementation Together, and it is described in detail the structure.

[0007]

DETAILED DESCRIPTION OF THE INVENTION As will be clearly understood from the embodiments of the present invention shown in the drawings, the soil acidification-sensitive fertilizer included in the present invention basically has the following structure. I have. That is, on the surface of the aggregated core material portion composed of a fertilizer component and a soil neutralizing component, an intermediate layer portion composed of a microbial nutrient component is formed, and the surface of the intermediate layer portion is covered with a soil acidification sensitive layer portion. Is a soil acidification sensitive fertilizer.

[0008] Further, as a concrete constitution, the soil acidification-sensitive fertilizer of the present invention is obtained by mixing a fertilizer component and a soil neutralizing component, granulating the mixture to a diameter of about 1 to 5 mm, and forming a granular core material. And forming an intermediate layer made of nutrients for microorganisms on the surface of the aggregated core material so as to have a thickness of about 55 μm, and forming a surface of the intermediate layer having a thickness of about 10 μm. The soil acidification sensitive layer of the soil layer is covered with a three-layer structure, and when it reaches a specific hydrogen ion index in the soil, it is detected and the outermost soil acidification sensitive layer collapses and becomes intermediate. The layer part is exposed, the intermediate layer part breeds soil microorganisms, collapses over time while activating, and thereafter,
The aggregated core material supplies the fertilizer component, and the soil acidification-sensitive fertilizer is intended to be capable of transforming the soil into weakly acidic, neutral, or alkaline.

[0009] In other words, the above-mentioned constitution is expressed in another expression. A fertilizer component and a soil neutralizing component are mixed and granulated to a diameter of about 1 to 5 mm to form an aggregated core material portion.
An intermediate layer made of nutrients for microorganisms is formed on the surface of the aggregated core material so as to have a thickness of about 55 microns, and the surface of the intermediate layer is soil acidified to a thickness of about 10 microns. A three-layer structure is formed by covering with the sensitive layer part. When the specific hydrogen ion index is reached in the soil, it is sensed and the outermost soil acidification sensitive layer part collapses to expose the middle layer part. The intermediate layer part can be appropriately destroyed over time while breeding and activating the microorganisms in the soil, and then the aggregated core material can supply the fertilizer component and change the soil quality to slightly acidic, neutral, or alkaline. It is also possible to say that it is a soil acidification sensitive fertilizer whose composition is the gist.

[0010] The aggregated core material is formed by mixing an appropriate amount of a neutralizing component of soil in addition to the fertilizer component, and is formed into granules, and mainly serves as a nutrient replenishing function for plants such as a compound fertilizer or a chemical fertilizer. , Must be constituted as an essential element that constitutes a plant or regulates reactions in the plant body, and one or several components that change acidified soil to weakly acidic, neutral, or alkaline. In addition to carbon, oxygen, hydrogen, nitrogen, phosphorus, potassium, calcium, magnesium, sulfur and other essential elements, iron,
Trace essential elements such as manganese, boron, copper, zinc, molybdenum, and chlorine, as well as some plants to be applied,
It is desirable that the composition is appropriately selected from those containing silicon, sodium, iodine, aluminum and the like as required. Specifically, montmorillonite mineral, glinoptilolite mineral, mordenite mineral, calcium carbonate, starch, oxidized Calcium and crystalline cellulose etc. at an appropriate ratio, for example, a ratio as shown in Examples described below,
It is advisable to mix these ratios as appropriate, depending on the type of soil and the target plant, the time of application, the sustainability and other various factors, and further consider the ventilation and tilling when applied to the soil. Then, it is convenient to form the aggregate as homogeneous as possible within a range of about 1 to 5 mm in diameter, ideally about 3 to 4 mm in diameter.

The intermediate layer is a part that functions to propagate and activate beneficial microorganisms and soil microorganisms in the soil, and to increase the number and types of the microorganisms. The intermediate layer includes proteins (slow-acting amino acids), fats, and the like. Ash, moisture, calcium, phosphorus and iron, it must be constituted to contain at least some components, and especially, the long-acting amino acids contained in the protein are indispensable components. , Its composition includes isoleucine, leucine, lysine, methionine, cystine, phenylalanine, orosin, threonine, tryptophan, valine, arginine, histidine, alanine, aspartic acid, glutamic acid, glycine, proline, hydroxyproline, serine and hydroxylysine. Medium, and must contain either As shown in the examples below, the sugar and brown sugar are represented by a ratio of about 1% by weight brown sugar and about 10% by weight low molecular gelatin to the above-mentioned aggregated core material. It is desirable to mix the components at a ratio which is appropriately increased or decreased according to various conditions as a standard, and the mixed component is formed on the surface of the aggregated core portion, for example, with a film thickness of about 55 microns. In the form of a thin film.

[0012] In addition to the nutrients for microorganisms that perform their main function, this intermediate layer portion may be used, if necessary (ie, even before reaching the above-mentioned aggregated core material portion), to some extent to the propagation of microorganisms. It is also possible to mix calcium oxide, calcium carbonate or other soil neutralizing components and mix them in an appropriate amount. When the soil acidification sensitive layer part described later collapsed,
It is also possible to create an environment in which microorganisms can easily proliferate and evolve the activation by dissolving each of these components and changing the soil to a slightly acidic, neutral or alkaline side.

The soil acidification sensitive layer keeps its shape as it is while in contact with an alkaline component or a neutral component and continues to function as a protective film. If the polymer is a portion that loses the function as a protective film and degrades with a specific hydrogen ion exponent, for example, methyl methacrylate / butyl methacrylate and dimethylaminoethyl methacrylate described below may be used. In addition to those already known as acrylic copolymers for gastric-soluble preparations such as polymers, it is also possible to employ various materials that can perform the same function, including those that will be developed in the future, and the selection of those materials is also possible. ,
For example, if it is made to disintegrate when acidified above pH 4 to 8, it can be convenient for soil management suitable for each plant, and especially when it reaches pH 5, it is made to disintegrate. It is most suitable as a growing soil for many flowers and fruits and vegetables, and has a thickness of about 10 microns as a standard on the surface of the above-mentioned intermediate layer, for adjusting the disintegration rate and the degree of reaction acidity. In consideration of the above conditions, the thickness is appropriately increased or decreased to form a thin film having an optimum film thickness.

[0014]

[Related invention] In connection with the above-mentioned soil acidification-sensitive fertilizer, the present invention also includes a novel production method therefor, and the gist of the invention is that a fertilizer component and a soil neutralizing component are granulated. After forming a large number of aggregated core materials having a diameter of about 1 to 5 mm using a machine, on each surface of the aggregated core material portions, a nutrient component for microorganisms is applied to form an intermediate layer portion, and then the intermediate layer portion is formed. This is a method for producing a soil acidification sensitive fertilizer in which a soil acidification sensitive layer is laminated and formed on the surface of an intermediate layer.

[0015] More specific constitutions include a montmorillonite mineral, a glinoptilolite mineral,
Mordenite mineral, calcium carbonate, calcium oxide,
Starch and crystalline cellulose are mixed, and moisture is adjusted to contain water using a granulator, or a large number of aggregated cores are formed while spraying water. After drying at a temperature below the boiling point, an aqueous solution of brown sugar and low molecular weight gelatin is sprayed and coated on each surface of the aggregated core material, and then dried at a temperature below the boiling point of water to form an intermediate solution. After forming a layer part, finally, a solution obtained by mixing and stirring methanol and an acrylic copolymer for a gastric-soluble preparation is sprayed and coated on the surface of the intermediate layer part,
A method for producing a soil acidification sensitive fertilizer, which is dried at a temperature lower than the boiling point of water to form a layer formed by layering the soil acidification sensitive layer, can be obtained.

The most preferable method for producing the soil acidification-sensitive fertilizer having the above constitution is as follows: about 15% of montmorillinite mineral, about 5% of glinoptilolite mineral, and 5% of mordenite mineral. About 5%, about 49% of calcium carbonate, about 25.5% of calcium oxide, about 0.3% of starch, and about 0.2% of crystalline cellulose are mixed at a weight ratio, and a granulator is used. 20 using
Adjust the humidity to contain about 40% moisture, or
A large number of aggregated cores having a diameter of about 3 to 4 mm are formed while sprinkling water so as to contain about 20 to 40% of water, and each aggregated core is formed at a temperature lower than the boiling point of water. After being dried to a water content of about 2%, the surface of each of the aggregated cores is coated with about 1% by weight of brown sugar and about 10% of low-molecular-weight gelatin relative to the aggregated cores,
An intermediate layer having a thickness of about 55 microns is sprayed and coated with a solution of water having the same weight ratio of 20 to 30%, and then dried to a water content of about 0% at a temperature lower than the boiling point of water. After forming a part, finally, a solution obtained by mixing and stirring methanol having a weight ratio of about 20% with respect to the aggregated core material part and an acrylic copolymer for a gastric-soluble preparation having a weight ratio of about 2% with respect to the aggregated core material part, Spray and coat the surface of the intermediate layer, and heat it at a temperature lower than the boiling point of water until the water content becomes about 0%, so that a soil acidification sensitive layer part with a film thickness of about 10 microns is laminated and formed. It can be said that it is a method for producing a soil acidification-sensitive fertilizer having the above-described configuration as a gist.

The aggregated core material portion can be mixed with a fertilizer component and a soil neutralizing component at the time of production and granulated to obtain a desired structure. After forming a granular portion, a soil neutralizing component such as calcium oxide or calcium carbonate may be laminated on the outside, or a fertilizer component and a soil neutralizing component may be formed in a hemispherical shape, and adhered and bonded to each other. It is also possible to form those into agglomerated form by integrating them together.When different components are mixed and formed into agglomerated form, or when different components are formed on the outer surface of the core part formed in the form of granules, In the case of laminating, for example, the fine raw material is supplied into a rotating pan (dish), and at the same time, an appropriate amount of water is supplied by spraying or the like from above the pan, or the raw material powder supplied with humidity is supplied, and a large amount Granules can be manufactured homogeneously Outside of a good to use a pan-type granulator, fluidized bed granulator, high speed mixing granulator, it is also possible to employ a dry compression granulator and the like.

The intermediate layer is prepared by adding water or a solvent to a fine powder of a nutrient component for microorganisms to form a solution, spraying the solution on the outer surface of the aggregated core material, and then drying it under predetermined conditions. Spraying water or a solvent while supplying microscopic microbial nutrients to the aggregated core material on the plate of the pan-type granulator, drying after attaching to the desired thickness,
It is also possible to form a nutrient component film for microorganisms on the surface of the aggregated core material, or to mix a nutrient component for soil with a nutrient component for microorganisms, or a nutrient component layer for microorganisms and a soil neutralization component. The layers may be alternately formed in a laminated shape.

The soil acidification sensitive layer must be formed into a film by, for example, spraying or coating the surface of the intermediate layer with a solution of a polymer that disintegrates with a predetermined hydrogen ion exponent. In addition to spraying or applying with a spraying device or the like as appropriate while transporting the product on a conveyer conveyor or rolling the gently inclined transport passage groove, a pan-type granulator is most simply used. It is also possible to form a coating by, for example, those already used as an acrylic copolymer for gastric-soluble preparations consisting of methyl methacrylate-butyl methacrylate-dimethylaminoethyl methacrylate copolymer In addition to employing a solution, it is possible to employ other polymers that collapse when the desired hydrogen ion exponent is reached, and these polymers may have an adverse effect on their properties. An appropriate solvent, including no methyl alcohol narrowing dissolved at a predetermined ratio, into solution.

Further, in order to prevent deterioration of each component in the drying step performed during the production, heating is performed at a temperature at which water does not boil at the atmospheric pressure of the working environment, for example, at a temperature of less than 100 degrees Celsius under atmospheric pressure, Alternatively, it may be housed in a closed container or room, and may be air-conditioned and dehumidified at room temperature, in an atmosphere lower than room temperature, or in an atmosphere higher than room temperature and less than the boiling point of water, and dried. . In the following, together with an embodiment representing the present invention shown in the drawings,
The structure will be described in detail.

[0021]

EXAMPLE 1 The cross-sectional view of the soil acidification-sensitive fertilizer of FIG. 1, the cross-sectional view of the aggregate core portion and the middle layer portion of FIG. 2, and the example shown in the cross-sectional view of the aggregate core portion of FIG. 1 shows a typical example of a soil acidification sensitive fertilizer included in the present invention having a basic configuration.

The soil acidification-sensitive fertilizer 1 has a core portion 2 composed of a fertilizer component and a soil neutralizing component in a core portion thereof, and the core portion 2 is composed of all components. It is granulated from a material having a particle size of 46 microns or less, and comprises 15% of montmorillonite mineral, 5% of glinoptilolite mineral, 5% of mordenite mineral, 49% of calcium carbonate, and 25.5 of calcium oxide. %, Starch 0.3% and microcrystalline cellulose 0.2% by weight, and feed the fertilizer component and the soil neutralizing component little by little into a rotating pan (dish) of a granulator. At the same time, an appropriate amount of water is sprayed to gradually form a large number of aggregates having a diameter of about 3 to 4 mm, and then heated and dehumidified to about 60 to 70 degrees Celsius, and dried until the water content becomes 2%. ing.

On the outer surface of each of the aggregated core portions 2, 2,..., An intermediate layer portion 3 made of nutrients for microorganisms is formed, and the intermediate layer portion 3 weighs the aggregated core portion 2. An aqueous solution is prepared by mixing 25% by weight of water with 1% by weight of brown sugar and 10% of low-molecular-weight gelatin, and spraying and coating the aggregated core in a rotating pan of a granulator. Then, by heating and dehumidifying to about 60 to 70 degrees Celsius,
The film is dried until the water content becomes 0%, and the film thickness is about 55 microns.

Further, the intermediate layer portion 3 has a soil acidification sensitive layer portion 4 which collapses when the hydrogen ion index reaches pH 5 on the outer surface thereof.
Are acrylics for gastric-soluble preparations comprising 20% by weight of methanol and 2% by weight of a copolymer of methyl methacrylate, butyl methacrylate and dimethylaminoethyl methacrylate with respect to the aggregate core part 2. After mixing and stirring the copolymer, the solution produced was sprayed and coated,
Heat to about 60-70 degrees Celsius and dry to a film thickness of about 1
It is laminated and formed to have a thickness of 0 micron.

[0025]

[Operation] The soil acidification-sensitive fertilizers 1, 1,... Of the present invention having the above-mentioned structure are arranged in pots as shown in the sectional view of the hardwood plant shown in FIG. When the soil is uniformly applied to less than half of the soil, the soil acidification sensitive layer 4 keeps its shape as long as the soil in the pot is kept neutral or alkaline, and water is supplied to the pot. , The coating state of the intermediate layer 3 is maintained.

The soil acidification-sensitive fertilizers 1, 1,...
Each particle size is set to 3-4mm, the soil is soft, the water and air contained in the soil are kept moderately, the roots of the plant easily grow, and it is easy to till, and it is hard to be eroded even by wind and rain Since the aggregated structure of the soil is set within a range of 1 to 5 mm in diameter, which is an ideal size, the solid phase, the liquid phase, and the gaseous phase are kept well without adversely affecting the soil. It is.

Then, when the plants absorb the nutrients in the soil, the soil becomes gradually acidified, and the hydrogen ion exponent reaches or exceeds pH 5, for example, when the pH reaches 4 or 3, for example, the soil acidification sensitive layer. Part 4 collapses, the middle layer part 3 becomes exposed and survives in acidified soil,
Microorganisms that have weakened and reduced in number are activated by receiving nutrient components for microorganisms contained in the intermediate layer portion 3 and propagate again.

The microorganisms increased and activated in this manner decompose the intermediate layer 3 and then promote the decomposition of the organic and inorganic substances in the exposed aggregated core 2, thereby fixing nitrogen, nitrifying, sulfur and sulfur. It oxidizes and reduces iron and manganese to increase nutrients in the soil, and elutes neutralizing components contained in the aggregated core material 2 to weaken the soil to weakly acidic, neutral, or alkaline. It restores the condition, prevents root rot of plants, and minerals such as montmorillonite minerals increase cation exchange capacity and restore a healthy root environment.

In the following, specific experimental examples and the experimental results are shown. The experimental period is three months from November to January.
In a pot of the same volume and the same shape using the same amount of mountain soil with a hydrogen ion index of pH 5.7, a test plot and a target plot are set up in which a plurality of seedlings are planted in pots having the same shape, and only the test plot has the soil. About 3% of soil volume was applied with acidification-sensitive fertilizer, and both test plots were similarly hydrated every three days with a diluted sulfuric acid adjusted solution of pH 4.8. The pH of the soil of pH 4.5 became pH 4.5, the vitality of the leaves began to be lost, and the soil of the test plot against this had a pH of p
H5.6, the roots were good, and the leaves showed remarkable luster. By applying the soil acidification-sensitive fertilizer, the acidified soil was recovered, It was confirmed that the hydrogen ion index was maintained at around pH 5.

In the production of the soil acidification-sensitive fertilizers 1, 1,... Of the present invention, the fertilizer component and the soil neutralizing component are first adjusted to a state containing moisture, or granulated while spraying moisture. After forming a plurality of aggregated core portions 2, 2,... Having a diameter of about 3 to 4 mm using a machine, heating and drying are performed under a temperature lower than the boiling point of water while preventing deterioration of nutrient components. Then, an aqueous solution of the nutrient for microorganisms is sprayed and applied to each surface of the aggregated core materials 2, 2,... Using a granulator, and heated and dried at a temperature lower than the boiling point of water. An intermediate layer 3 of about 55 microns is formed. Finally, a methanol solution of an acrylic copolymer for a gastric-soluble preparation is sprayed and coated on the surface of the intermediate layer 3 and heated at a temperature lower than the boiling point of water to obtain a solution. A layer of soil-acidification sensitive layer 4 of about a micron is laminated and formed, Acidification sensitive fertilizer 1, 1,
... is manufactured.

[0031]

[Effect] As described above, according to the soil acidification-sensitive fertilizer of the present invention and the method for producing the same, the buffer curve method requires much labor and time for each soil like conventional fertilizers. No need to go or apply based on the knowledge and experience cultivated over many years, regardless of the soil,
By applying a predetermined amount of fertilizer, appropriate soil improvement can be performed without special knowledge and experience, and it is possible to eliminate inefficient work such as measurement of hydrogen ion index and lime application multiple times based on this. It can greatly improve the work efficiency of people engaged in agriculture and forestry, can enjoy hobbies such as vegetable gardens and flower beds, and can be easily used by people with little experience in soil improvement. It is an excellent feature that it can be transformed into an accurate soil without any special application method.

In particular, the soil acidification-sensitive fertilizer 1 described in the examples is rapidly disintegrated when the hydrogen ion index reaches pH 5 because the soil acidification-sensitive layer 4 is made of an acrylic copolymer for gastric-soluble preparations. First, the nutrient components for microorganisms in the middle layer 3 are exposed and activated by increasing the type and number of beneficial microorganisms, thereby decomposing the soil components and supplying nutrients to the roots. While gradually recovering the vitality of the roots, the intermediate layer part 3 can be completely decomposed by the activity of the activated microorganisms to expose the aggregated core material 2, and the exposed aggregated aggregates can be removed. Since the soil is neutralized by the elution of the heartwood portion 2, the fertilizer component that works gently and long is eluted, and the vitality of the plant is restored without damaging the roots to maintain healthy growth. The hydrogen ion index reaches pH5 Begonia, a typical houseplant that is known to grow most vigorously when drenched, as well as roses that are also known to show vigorous growth in the range of pH 5 to around pH 7 Hydrangea, flowers such as chrysanthemums, apples, fruit trees such as oranges, spinach and lettuce,
It acts very effectively on many plants such as root vegetables such as tomato, eggplant, carrot, radish, etc., and a high fertilizer effect is obtained, and the diameter of soil acidification sensitive fertilizer 1 is about 3 to 4 mm. As it is set as a granular material that is approximately the same as the aggregate diameter of high-quality soil that is soft and has a granular structure where water and air are kept moderately, assimilate with the soil environment and This has an extremely practical feature that good soil quality can be maintained without obstructing soil ventilation and water retention.

As described above, the soil acidification-sensitive fertilizer of the present invention and the method for producing the same can achieve the intended purpose with a novel structure, and are easy to produce and easy to apply. The work efficiency itself can be greatly increased, so that it is possible to reliably reduce costs and shorten the fertilization work period, and not only those who are engaged in agriculture and forestry but also those with limited expertise and experience. It is highly regarded by the general public as an extremely practical fertilizer, and is expected to be widely used and spread.

[Brief description of the drawings]

The drawings show representative examples embodying the technical idea of the soil acidification-sensitive fertilizer of the present invention and the production method thereof.

FIG. 1 is a cross-sectional view showing a configuration of a soil acidification-sensitive fertilizer.

FIG. 2 is a sectional view showing an aggregate core portion and an intermediate layer portion.

FIG. 3 is a cross-sectional view showing a configuration of an aggregate core portion.

FIG. 4 is a cross-sectional view showing a state in which a soil acidification-sensitive fertilizer is applied.

[Explanation of symbols]

 1 Soil acidification sensitive fertilizer 2 Same aggregated core material 3 Same middle layer 4 Same soil acidification sensitive layer

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Makoto Sato 1624, Kuginuzuka, Nanyo-shi, Yamagata Prefecture F-term (reference) 4H061 AA01 AA02 DD14 DD18 EE01 EE02 EE12 EE16 EE20 EE24 EE25 EE27 EE35 EE43 EE44 EE51 EE62 EE63 FF08 FF15 GG15 GG19 GG26 GG41 GG70 HH02 HH11 KK02 KK03 KK07 LL02 LL15 LL22 LL26 LL30

Claims (10)

[Claims] An intermediate layer comprising a nutrient component for microorganisms is formed on the surface of an aggregate core material comprising a fertilizer component and a soil neutralizing component, and the surface is covered with a soil acidification sensitive layer portion. A soil acidification-sensitive fertilizer, characterized in that: 2. A fertilizer component and a soil neutralizing component are mixed and granulated to a diameter of about 1 to 5 mm to form an aggregated core, and the surface of the aggregated core comprises a nutrient for microorganisms. A soil characterized in that the intermediate layer has a thickness of about 55 microns and the surface of the intermediate layer is covered with a soil acidification sensitive layer having a thickness of about 10 microns. Acidification sensitive fertilizer. 3. A fertilizer component and a soil neutralizing component are mixed and granulated to a diameter of about 1 to 5 mm to form an aggregated core material, and the surface of the aggregated core material is composed of a nutrient component for microorganisms. The intermediate layer has a thickness of about 55 microns, and the surface of the intermediate layer is covered with a soil acidification sensitive layer having a thickness of about 10 microns to form a three-layer structure.
When the soil reaches a specific hydrogen ion exponent in the soil, it senses it and the outermost soil acidification-sensitive layer collapses, exposing the middle layer, and the middle layer propagates and activates soil microorganisms. Soil acidification sensitive fertilizer characterized by being able to disintegrate over a period of time as needed while the granulated core material supplies the fertilizer component, and that the soil can be transformed to weakly acidic, neutral, or alkaline. . 4. A montmorillonite mineral of about 15%, a glinoptilolite mineral of about 5%, and a mordenite mineral of about 5%.
%, Calcium carbonate about 49%, calcium oxide about 2%
5.5%, about 0.3% starch and about 0.2% crystalline cellulose are mixed at a weight ratio of 3-4 mm in diameter.
And a weight of about 1% of brown sugar and about 10% of low-molecular-weight gelatin of about 55% by weight with respect to the surface of the aggregated core.
In addition to forming an intermediate layer having a thickness of about 2 microns, a soil acidification-sensitive layer having a thickness of about 10 microns comprising an acrylic copolymer for a gastric-soluble preparation having a weight ratio of about 2% is formed on the surface thereof. A soil acidification-sensitive fertilizer, characterized in that: 5. The low-molecular-weight gelatin contains about 85.5 g of slow-acting amino acid, about 0.5 g of fat, about 1.5 g of ash, about 12.5 g of water, about 170 g of calcium per 100 g.
The soil acidification sensitive fertilizer according to any one of claims 1 to 4, wherein the fertilizer comprises about 11 mg of phosphorus, about 11 mg of phosphorus, and about 1.1 mg of iron. 6. The soil acidification sensitive layer section is set to have a specific hydrogen ion index at which the collapse starts, at pH 5, so that the soil can reach pH 5 or react within a region exceeding pH 5. A soil acidification-sensitive fertilizer according to any one of claims 1 to 5. 7. The soil acidification response according to any one of claims 1 to 6, wherein a methyl methacrylate / butyl methacrylate / dimethylaminoethyl methacrylate copolymer is used as the acrylic copolymer for gastric-soluble preparations. Type fertilizer. 8. A fertilizer component and a soil neutralizing component are formed using a granulator to form a large number of aggregated core materials having a diameter of about 1 to 5 mm. After forming the intermediate layer by coating the components, the soil acidification sensitive layer was laminated and formed on the surface of the intermediate layer,
A method for producing a soil acidification-sensitive fertilizer according to any one of claims 1 to 7. 9. A mixture of montmorillonite mineral, glinoptilolite mineral, mordenite mineral, calcium carbonate, calcium oxide, starch and crystalline cellulose,
Use a granulator to adjust the humidity to include water, or
After forming a large number of aggregated core portions while spraying water, and drying each aggregated core portion at a temperature lower than the boiling point of water,
An aqueous solution of brown sugar and low molecular weight gelatin is sprayed and coated on each surface of the aggregated core material, and then dried at a temperature lower than the boiling point of water to form an intermediate layer. Finally, methanol and gastric A solution obtained by mixing and stirring the acrylic copolymer for a soluble preparation is sprayed and coated on the surface of the intermediate layer, dried at a temperature lower than the boiling point of water, and a soil acidification sensitive layer is laminated and formed. A method for producing a soil acidification-sensitive fertilizer according to any one of claims 1 to 7, 10. A montmorillonite mineral of about 15%, a glinoptilolite mineral of about 5%, and a mordenite mineral of about 5%.
%, Calcium carbonate about 49%, calcium oxide about 2%
5.5%, starch is mixed at about 0.3% and crystalline cellulose at about 0.2% by weight, and the mixture is adjusted to contain about 20 to 40% moisture using a granulator. A large number of aggregated cores having a diameter of about 3 to 4 mm are formed while moistening or sprinkling water so as to contain about 20 to 40% of water, and each aggregated core has a boiling point of water. After drying at a temperature of less than about 2% moisture, the surface of each of the aggregated cores has a weight ratio of about 1% brown sugar and about 10% A solution in which low molecular gelatin is mixed with water at the same weight ratio of 20 to 30% is sprayed and coated, and then dried to a water content of about 0% at a temperature lower than the boiling point of water to obtain a film thickness of about 55%. After forming an intermediate layer of about microns, the weight ratio to the aggregated core is about 20%. A solution obtained by mixing and stirring tanol and an acrylic copolymer for a gastric-soluble preparation having the same weight ratio of about 2% is sprayed and coated on the surface of the intermediate layer. The method for producing a soil acidification-sensitive fertilizer according to any one of claims 1 to 7, wherein the soil acidification-sensitive layer portion having a film thickness of about 10 microns is laminated and formed by heating until the temperature becomes about 0%. .