KR20140131060A - Silicic acid fertilizer pill and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a silicic acid fertilizer pill and a method for manufacturing the same. The silicic acid fertilizer pill comprises an inorganic powder, a binder, and a binding adjuvant. The inorganic powder includes zeolite, bentonite, elvan, Langbeinite, and biotite; the binder includes liquefied silicic acid, chitosan, humic acid, molybdenum, alginic acid soda, and water; and the binder adjuvant includes at least one of gesso, starch, and wheat flour. The silicic acid fertilizer pill has a ring shape with a diameter of 5-30 mm.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a silicate fertilizer,

The present invention relates to a silicate fertilizer and a method for producing the same. More specifically, the present invention relates to a method for producing a plant which is produced in the form of a ring by applying an inorganic powder such as zeolite having excellent fertilizing effect and a binder containing liquid silicic acid, chitosan, sodium alginate and a corrosive acid at the same time to improve productivity, stress resistance, A silicate fertilizer, and a method for producing the silicate fertilizer.

Silicon (Si) is present on the surface of the earth and is generally not included in essential elements in plants, but has important meaning as a constituent of plants. Silicon absorbed from plant roots is transported with the vaporized stream and is known to accumulate in cell walls, intercellular spaces and outer layers (Marschner et al., 1990). These silicones accumulate in the roots, stems, and leaves of plants (Vorm, 1980; Parry and Kelso, 1975). They act to physically strengthen the cell walls of plants, or to increase the availability of light to leaves to increase photosynthesis (Adatia and Besford, 1986; Ma, J. and E. Takahashi, 1993).

Silicic acid is a generic name for a compound of silicon and oxygen and hydrogen mixed, meaning that silicon dioxide and water are combined. The silicic acid is deposited in the epidermal cells of the leaves or stems to silicate it, thereby improving the yield and quality of crops and enhancing stress resistance. The silicate has no toxicity and has the function of neutralizing various harmful components. The silicate present in the soil is absorbed into the roots of the crops in the form of water-soluble silicate (salt), which increases resistance to insect pests and the like. Silic acid is known to be important not only for paddy plants but also for planting sugarcane, corn, .

On the other hand, water-soluble silicate _{(CaSiO 3, Na 2 SiO 3} , K 2 SiO 3 and MgSiO _3, and so on) is the proven harmless to soils and plants, inchuk include the use of environment-friendly agriculture Promotion Act the eco-friendly farm materials 7 of standard organic material . However, such a water-soluble silicate has a strong base in combination with anionic silicate ion, potassium, calcium, and magnesium, which is an anion-sensitive material, and is inconvenient to use in a farm.

Chitosan, which is produced by deacetylation of chitin extracted from crab shells, has recently attracted attention as a natural and biodegradable functional natural raw material with less concern for environmental destruction in industry.

When this liquid silicate and chitosan are mixed and used as a fertilizer, the effect of improving the agricultural products of silicate and chitosan can be expected at the same time. However, due to the agglomeration characteristics of chitosan, there is a limit to increase the content of chitosan in the silicate fertilizer.

In order to solve the above-mentioned disadvantages, the inventor of the present invention has derived a fertilizer composition including silicate, chitosan and corrosion acid by increasing the content of chitosan in silicate fertilizer through Application No. 2011-0104796.

On the other hand, most of the basic fertilizer used for the crops is sprayed before and after tillage and rotary work, that is, before sowing or planting of the crops. At this time, the fertilizer application is uneven and the fertilizer efficiency is low. In order to increase the efficiency of fertilizer, there is a method of using the liquid fertilizer in the form of root irrigation (irrigation), but this is a real difficulty due to excessive facility cost and operation cost. Another method is direct fertilization around the roots of crops, which is avoided by farmers due to the hazards of workability and chemical fertilizer properties (damage to crops if exposed directly to the roots).

On the other hand, zeolite is a porous material, also called zeolite, having many internal micropores (specific surface area of about 50 m 2 / g to 1,600 m 2 / g) It is used for adsorption of harmful substances, etc. It is excellent in ion exchange effect and excellent in maintenance effect, and is suitable for maintenance of water retention, and is used for soil improvement and fertilizer mixture.

Accordingly, the present inventors have found that the present inventors have found that the above-mentioned zeolite inorganic powder having excellent fertilizing effect, the binder containing both liquid silicic acid, chitosan and corrosion acid and the auxiliary binder in an optimal amount, The present inventors have completed the present invention by producing an annular fertilizer having an optimum size.

An object of the present invention is to provide a silicate fertilizer excellent in crop productivity, stress resistance, resistance to disease progression and soil improvement effect.

Another object of the present invention is to provide a silicate fertilizer which is excellent in physical binding force, improves the fertilizing efficiency of the fertilizer, and is excellent in absorbency into crops.

Another object of the present invention is to provide a silicate fertilizer having a small amount of fertilizer and excellent workability and economical efficiency.

It is still another object of the present invention to provide a method for producing the silicate fertilizer.

One aspect of the present invention relates to silicate fertilizers. Wherein the silicate fertilizer comprises inorganic powder, a binder and a binding aid, wherein the inorganic powder comprises zeolite, bentonite, elvan, Langbeinite and biotite, the binder being liquid silicic acid, chitosan, , Sodium alginate, and water, and the coupling aid includes at least one of gypsum powder, starch powder and wheat flour, and has a ring shape having a diameter of 5 to 30 mm.

In one embodiment, the silicate fertilizer comprises 100 parts by weight of inorganic powder, 40 to 70 parts by weight of a binder, and 15 to 30 parts by weight of a binding aid.

In one embodiment, the inorganic powder comprises 50 to 75% by weight of zeolite, 15 to 25% by weight of bentonite, 1 to 10% by weight of elvan, 3 to 10% by weight of ranbenite and 1 to 10% by weight of biotite based on the total weight of the inorganic powder .

In one embodiment, the particle size of the inorganic powder is 50 to 300 mesh.

In one embodiment, the binder comprises 10-25% by weight of liquid silicic acid, 0.01-15% by weight of chitosan, 5-12% by weight of corrosive acid, 0.05-5% by weight of molybdenum, 3-10% by weight of sodium alginate, And water is included.

The liquid silicic acid in the one embodiment is _{CaSiO 3, Na 2 SiO 3,} MgSiO 3 And K ₂ SiO ₃ And at least one water-soluble silicate selected from the group consisting of water-soluble silicates.

Another aspect of the present invention relates to a method for producing the silicate fertilizer. In one embodiment, the method comprises mixing an inorganic powder and a binder to form a first mixture; Mixing the first mixture with a binding aid to form a second mixture; And forming the second mixture into a ring shape having a diameter of 5 mm to 30 mm, wherein the inorganic powder includes zeolite, bentonite, elvan, Langbeinite and biotite, the binder is liquid silicic acid, Chitosan, a caustic acid, molybdenum, sodium alginate and water, and the binding aid comprises at least one of gypsum powder, starch powder and wheat flour.

In one embodiment, each of the components is adjusted to include 100 parts by weight of the inorganic powder, 40 to 70 parts by weight of the binder, and 15 to 30 parts by weight of the binding aid.

In one embodiment, the binder may be prepared by mixing a corrosion acid powder and water and warming the mixture to prepare a solution of a corrosive acid, followed by primary aging; Mixing the aged corrosion acid solution with liquid chitosan followed by secondary aging to prepare a mixed solution; And mixing the mixed solution with liquid silicic acid, molybdenum, and sodium alginate.

In one embodiment, the binder comprises 10-25% by weight of liquid silicic acid, 0.01-15% by weight of chitosan, 5-12% by weight of corrosive acid, 0.05-5% by weight of molybdenum, 3-10% by weight of sodium alginate, And water is included.

In one embodiment, the method further comprises adding water to the mixed acid of chitosan and chitosan prior to mixing the liquid silicic acid with the mixed solution, and then removing the bubbles by filtration.

The silicate fertilizer according to the present invention is excellent in the productivity of crops, resistance to stress, tolerance to diseases, soil improvement effect, and excellent physical binding force, and can be added at the same time as the fertilizer is applied at the same time as the fertilizer, It is excellent in water absorption, and it is possible to use 1 ~ 2 quartz ring fertilizer per crop, so it is easy to work and economical efficiency such as labor saving can be achieved with a small amount of fertilizer.

1 is a photograph showing silicate fertilizers of Example 1 and Comparative Example 1 according to the present invention.
Fig. 2 is a photograph showing the growth reaction after 21 days of roots treatment using Examples 1 and 2 and Comparative Example 1 of the present invention at the time of lettuce implantation. Fig.
FIG. 3 is a photograph showing the growth state of radish after seven days by applying Example 1 and Comparative Example 1 of the present invention in non-sowing.
4 is a photograph showing the growth state of radish after 21 days by applying Example 1 and Comparative Example 1 of the present invention at non-sowing time.
Fig. 5 is a photograph showing the growth state after 4 weeks from the application of the examples 1 to 2 and the comparative example 1 of the present invention in the cultivation of the cabbage.

One aspect of the present invention relates to silicate fertilizers. In one embodiment, the silicate fertilizer comprises an inorganic powder, a binder and a binding aid, wherein the inorganic powder comprises zeolite, bentonite, elvan, Langbeinite and biotite, the binder being liquid silicic acid, chitosan, Molybdenum, sodium alginate and water, and the binding aid may include at least one of gypsum powder, starch powder and wheat flour.

Hereinafter, the structure of the silicate fertilizer will be described in more detail.

Inorganic powder

The inorganic powder may be included for the purpose of providing the fertilizer component to the crop and improving the soil while maintaining the appearance of the silicate fertilizer and further improving the hardness.

In one embodiment, the inorganic powders may be selected from zeolite, bentonite, elvan, rubenite and biotite.

In one embodiment, the inorganic powder comprises 50 to 75% by weight of zeolite, 15 to 25% by weight of bentonite, 1 to 10% by weight of elvan, 3 to 10% by weight of ranbenite and 1 to 10% by weight of biotite based on the total weight of the inorganic powder . The formability, soil improvement effect and fertilizer effect can be excellent in the above range.

The zeolite may be included for the purpose of maintaining the appearance of the silicate fertilizer, maintaining the fertilizer component contained in the silicate fertilizer, improving the fertilizing effect, and improving the soil.

In one embodiment, the zeolite may be contained in an amount of 50 to 75% by weight based on the total weight of the inorganic powder. Preferably 55 to 70% by weight. More preferably 60 to 70% by weight. The soil improving effect and hygroscopicity can be excellent in the above range.

The bentonite is a minerals of a volcanic ash component and may be included for the purpose of providing components useful for growing crops such as iron, magnesium, sodium and calcium, and improving moldability and viscosity.

In one embodiment, the bentonite may be included in an amount of 15 to 25% by weight based on the total weight of the inorganic powder. And preferably 15 to 22% by weight. More preferably from 15 to 20% by weight. The silicate fertilizer can be easily molded by providing excellent moldability and viscosity within the above range.

The elvan can easily substitute (replace) the mineral cation contained in the soil and the anion of the elvan, so that the mineral component in the soil can be absorbed through the roots and utilized as a nutrient, thereby promoting the growth of the plant. Also, the anion of the elvan may have the ability to inhibit the acidification of the soil.

In one embodiment, the elvan stone may be included in an amount of 1 to 10% by weight based on the total weight of the inorganic powder. Preferably 3 to 8% by weight. More preferably 3 to 5% by weight. The soil improvement effect and the plant growth promoting effect can be excellent in the above range.

The Langbeinite is a natural mineral known by the chemical formula K ₂ Mg ₂ (SO ₄ ) _3. It is a natural mineral which is produced by a long time underground of sulfuric acid (K ₂ SO ₄ ) and sulfuric acid goto (MgSO ₄ ) It is a pure natural mineral which has no antagonistic effect and is easily absorbed by crops. It is mainly produced in the Carlsbad area of New Mexico, USA. Since the potassium component contained in the lanbenite is gradually degraded in the soil by the action of the soil microorganism over a long period of time, the lanthanum is less liable to be lost and leached, and is highly ineffective. In the present invention, the above-mentioned lanbenite can be included for soil improvement effect and for easy delivery of components such as potassium, sulfur and magnesium to seedling roots.

In one embodiment, the rhenbenite may be included in an amount of 3 to 10% by weight based on the total weight of the inorganic powder. Preferably 5 to 10% by weight. More preferably from 5 to 8% by weight. In the above range, potassium, magnesium and sulfur components can be simultaneously supplied to the crops to provide a useful effect for growth, and resistance to various insect pests and low temperatures can be improved.

The biotite may be included for the purpose of enhancing the crop growth rate and yield, because the biotite is excellent in the emission of far-infrared rays and the preventive effect of crops.

In one embodiment, the biotite may be included in an amount of 1 to 10% by weight based on the total weight of the inorganic powder. Preferably 3 to 8% by weight. More preferably 3 to 5% by weight. Within the above range, the insecticide-preventing effect of crops and crop growth can be excellent.

In one embodiment, the particle size of the inorganic powder may be 50-300 mesh. Preferably 80 to 200 meshes. In the above range, the moldability and soil improvement effect can be excellent.

Binder

In the present invention, the above-mentioned binder can play a role of forming and holding the inorganic powder into a ring shape and also greatly enhancing the productivity, stress resistance, disease resistance and soil improvement effect of crops.

In one embodiment, the binder may include liquid silicic acid, chitosan, a corrosion acid, sodium alginate, molybdenum, and water.

The liquid silicate may serve to improve crop yield and quality and increase stress resistance. The liquid silicic acid used in the present invention can be produced by a conventional method for producing liquid silicic acid, for example, by mixing potassium silicate or sodium silicate with potassium carbonate or sodium carbonate, heating the mixture in a furnace at a temperature of 1500 DEG C or higher, .

The liquid silicic acid in the one embodiment is _{CaSiO 3, Na 2 SiO 3,} MgSiO 3 And K ₂ SiO ₃ , ≪ / RTI > and the like. These may be included alone or in combination of two or more. When the above-mentioned liquid silicic acid is contained, it can be easily dissolved in the water and directly absorbed into the roots of crops, and also can act as a sort of crop disinfection inhibiting propagation and growth of germs due to its alkaline nature.

The chitosan is a substance obtained by deacetylation of chitin in crustaceans such as crabs, shrimps, etc., thereby increasing the yield of crops, exhibiting excellent antimicrobial activity, and enhancing the disease resistance of crops. In one embodiment, the chitosan is preferably water-soluble chitosan or a derivative thereof. Specifically, carboxymethyl chitosan or sulfated chitosan may be used as the chitosan derivative. Preferably, Carboxymethyl chitosan can be used. The carboxymethyl chitosan may be commercially available or may be introduced by introducing a carboxymethyl group into chitosan. For example, a method of Muzzaarelli (Muzzaarelli RAA, Int. J. Biol. Macromol. 16 (4), 177, 1994) . ≪ / RTI > The chitosan is preferably used in the form of an aqueous solution. In particular, carboxymethyl chitosan has a characteristic that it can dissolve in water in a wide pH range unlike ordinary chitosan since a carboxymethyl group as a water-soluble group is introduced into chitosan. Such carboxymethyl chitosan is preferably prepared and used in the form of a neutral aqueous solution. Carboxymethyl chitosan can minimize coagulation characteristics of chitosan and can alleviate aggregation even when mixed with a basic substance. Accordingly, when mixed with silicic acid, which is a strong base component, the aggregation rate can be lowered.

In one embodiment, the chitosan having a molecular weight of 1,000 to 2,000,000 Da may be used. Preferably, the chitosan has a molecular weight of 1,000 to 30,000 Da.

The above-mentioned corrosive acid is also referred to as humic acid, and means organic matter extracted from the soil by alkali or deposited by acid. In the present invention, the above-mentioned corrosive acid decreases the aggregation ratio between liquid silicic acid and chitosan, thereby enhancing the content of chitosan contained in the binder. It is difficult to mix chitosan with a high content due to the agglomeration characteristics of chitosan when the basic liquid silicate is mixed with the chitosan. As described above, when carboxymethyl chitosan is used, the cohesion rate with silicic acid is lowered. However, when a certain amount of chitosan is mixed, coagulation will occur. When the mixed acidic acid is mixed with chitosan in advance, Can be significantly lowered, and finally, the chitosan content in the binder can be improved.

In addition, the corrosive acid itself has the effect of increasing the porosity of the soil structure, increasing the moisture permeability and retention function, improving the soil to be beneficial for the growth of the crops, increasing the soil organic matter content, activating the soil microorganism, Stabilize the nitrogen state, and mitigate heavy metal toxicity, making the soil fertile.

The sodium alginate improves tackiness and viscosity of the binder to increase physical binding force, promotes soil bioactivity, has an excellent soil improving effect, and can promote the growth of crop roots.

The molybdenum serves to fix nitrogen during the protein formation of a crop, and may act to enhance resistance to viruses. The molybdenum may be a conventional one. For example, water-soluble molybdenum may be used, but is not limited thereto. The water-soluble molybdenum can be easily mixed with the water to be contained in the binder and easily absorbed into the crop when using the water-soluble molybdenum.

The water may be included for dissolving the corrosive acid powder and improving the homogeneity and diffusibility of the binder. Preferably, purified water can be used as the water.

In one embodiment, the binder comprises 10-25% by weight of liquid silicic acid, 0.01-15% by weight of chitosan, 5-12% by weight of corrosive acid, 0.05-5% by weight of molybdenum, 3-10% by weight of sodium alginate, Water can be adjusted to include. Preferably 10 to 20% by weight of liquid silicic acid, 0.1 to 5% by weight of chitosan, 5 to 10% by weight of corrosive acid, 0.1 to 3% by weight of molybdenum, 3 to 8% by weight of sodium alginate and water in a remaining amount. In the above range, the viscosity of the binder is appropriate, and the inorganic powder is easily formed into a circular shape, and the productivity, stress resistance, disease resistance and soil improvement effect of the crop can be greatly enhanced.

The binder may be included in an amount of 40 to 70 parts by weight based on 100 parts by weight of the inorganic powder. Preferably 50 to 70 parts by weight. More preferably from 55 to 65 parts by weight. In the above range, the silicate fertilizer is excellent in moldability, and the productivity, stress resistance, disease resistance and soil improvement effect of crops can be improved remarkably.

Binding aid

The bonding auxiliary agent may serve to improve the workability by providing the physical binding force of the components and further increasing the moldability. In one embodiment, the binding aid may include one or more of gypsum powder, starch powder and wheat flour.

The gypsum powder improves the tackiness and viscosity of the binder when the silicate fertilizer is formed, increases the physical binding force, improves soil bioactivity, improves soil improvement effect, and promotes the growth of crop roots.

The starch powder and wheat flour can further improve the tackiness and viscosity of the binding agent, thereby enhancing the physical binding force. Preferably, starch powder can be used.

In one embodiment, the gypsum powder and starch powder may be included in a weight ratio of 1: 0.1 to 2. In this range, the tackiness and viscosity of the binder can be improved.

In one embodiment, the gypsum powder, starch powder and flour may have a particle size of 80 to 200 mesh. In the above range, moldability and workability can be excellent.

In one embodiment, the coupling aid may be included in an amount of 15 to 30 parts by weight based on 100 parts by weight of the inorganic powder. Preferably 15 to 25 parts by weight. More preferably from 20 to 25 parts by weight. In the above range, the formability and physical binding force of the silicate fertilizer are excellent, and the soil improving effect can be improved.

In one embodiment, the silicate fertilizer may have a ring shape having a diameter of 5 mm to 30 mm. Preferably 10 to 30 mm in diameter. By using one or two silicate fertilizers in the above range, excellent crop productivity, stress resistance, disease resistance and soil improvement effect can be expected, and workability and economical efficiency can be excellent. When the diameter of the silicate fertilizer is less than 5 mm, the effect of the silicate fertilizer on the crop is insignificant, so that it is difficult to expect productivity, stress resistance, resistance to disease and soil improvement effect of the crop. When the silicate fertilizer exceeds 30 mm, The effect is insignificant and the economical efficiency may be lowered.

Another aspect of the present invention relates to a method for producing silicate fertilizer. In one embodiment, the method comprises forming a first mixture; Forming a second mixture; And a ring-forming step.

Hereinafter, the production method of the present invention will be described step by step.

The first mixture forming step

The above step is a step of mixing the inorganic powder and the binder to form the first mixture. In one embodiment, 100 parts by weight of the inorganic powder and 40 to 70 parts by weight of the binder may be mixed to form the first mixture.

The inorganic powders may include zeolite, bentonite, elvan, Langbeinite and biotite. In one embodiment, the inorganic powder is selected so that it comprises 50 to 75% by weight of zeolite, 15 to 25% by weight of bentonite, 1 to 10% by weight of elvan, 3 to 10% by weight of ranbenite and 1 to 10% by weight of biotite, Can be adjusted. The formability, soil improvement effect and fertilizer effect can be excellent in the above range.

Wherein the binder comprises a mixture of a corrosive acid and chitosan and aging to prepare a mixed solution; And mixing the mixed solution with liquid silicic acid, molybdenum, and sodium alginate. At this time, the mixed solution of the corrosion acid and the chitosan is prepared by mixing the corrosion acid powder and water and warming them to prepare a solution of the acidic acid, and after the first aging, the aged acidic solution is mixed with the liquid chitosan, Followed by aging.

The water may be mixed for the purpose of dissolving the corrosive acid powder, and purified ultrapure water may be preferably used. In one embodiment, the warming can warm the water to a temperature of from 70 to 95 DEG C, preferably from 75 to 85 DEG C, and the solubility of the corrosion acid powder in the water of this temperature range is increased.

In one embodiment, the first aging of the corrosion acid solution can be carried out for 7 to 10 days, and can be aged at 20 to 40 ° C, preferably at room temperature. This aging step has the advantage of improving the homogeneity and diffusivity of the corrosive acid. Further, in order to further enhance the homogeneity of the corrosion acid solution, it is preferable to proceed with stirring in the mixing and aging process.

In one embodiment, the chitosan is preferably carboxymethyl chitosan, and chitosan in an aqueous solution may be used.

In one embodiment, the second aging may be performed by mixing the aged corrosion acid solution and the liquid chitosan, homogenizing the mixture by agitation, and then aging for 2 to 5 days to prepare a mixed solution of a corrosion acid and chitosan. It is preferable to carry out the agitation process in parallel at the aging. Such a mixing and aging process can be aged at 20 to 40 占 폚, preferably at room temperature. This aging step has the advantage of completely dissolving the incompletely dissolved corrosive acid powder.

In the liquid silicate mixing step, liquid silicate, molybdenum, and sodium alginate are mixed with the mixed solution of the prepared corrosive acid and chitosan to prepare a binder. At this time, for the reaction efficiency of the corrosive acid, chitosan and liquid silicic acid, the liquid silicic acid is preferably slowly poured and mixed while stirring the mixed solution of the corrosive acid and the chitosan, and may be stirred, for example, at a speed of 10 to 20 RPM . Appropriate reactivity can be expected at this rate.

The method may further include adding water to the mixed acid of chitosan and chitosan before the liquid silicate mixing step, and then removing the bubbles by filtration. In one embodiment, water is further added to the solution after the mixed solution of the hydrochloric acid and chitosan is prepared, stirred, and filtered to remove bubbles. Through such a purification process, the purity can be increased and the reactivity with the liquid silicic acid can be further enhanced.

In this case, each of the above components is mixed with 10 to 25 wt% of liquid silicic acid, 0.01 to 15 wt% of chitosan, 5 to 12 wt% of corrosive acid, 0.05 to 5 wt% of molybdenum, 3 to 10 wt% of sodium alginate, It can be adjusted to include negative water.

The second mixture forming step

This step is a step of mixing the first mixture with a coupling aid to form a second mixture. In one embodiment, the coupling aid may be included in an amount of 15 to 30 parts by weight based on 100 parts by weight of the inorganic ores.

In one embodiment, the binding aid may be prepared from one or more of gypsum powder, starch powder and wheat flour. In one embodiment, the binding aid may be prepared by incorporating the sodium alginate and the starch powder in a weight ratio of 1: 0.1 to 2. The silicate fertilizer can be easily formed by providing excellent moldability and viscosity in the above range.

Ring forming step

The step is a step of molding the formed second mixture into a ring shape having a diameter of 5 mm to 30 mm. In one embodiment, the second mixture may be molded into a predetermined size in a molding machine, and then introduced into a ventilator to form a ring.

Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to preferred embodiments of the present invention. However, the following examples are provided to aid understanding of the present invention, and the scope of the present invention is not limited to the following examples. The contents not described here are sufficiently technically inferior to those skilled in the art, and a description thereof will be omitted.

Example  One

(1) Mixing of inorganic powders: zeolite, bentonite, elvanite, rubenite and biotite having an average particle size of 100 mesh were mixed. At this time, 70 wt% of zeolite, 17.5 wt% of bentonite, 3.5 wt% of elvan, 6 wt% of rubenite and 3 wt% of biotite were included in the total weight of the inorganic powder.

(2) Preparation of binder: The powdery corrosion acid was dissolved in 80 占 폚 of ultra-pure water and stirred, followed by aging for 10 days. After the aging, the carboxymethyl chitosan solution was mixed and stirred, and aged for 2 days to prepare a mixed solution of the acid and chitosan. A certain amount of ultrapure water was added to the mixed solution, stirred, and filtered to remove air bubbles. Then, the purified mixed solution was mixed with liquid silicic acid, water-soluble molybdenum and sodium alginate while stirring at a speed of 15 RPM to prepare a binder. Each of the above components was adjusted to be 10 wt% of liquid silicic acid, 0.5 wt% of chitosan, 8 wt% of corrosive acid, 5 wt% of sodium alginate, 0.1 wt% of molybdenum and 76.4 wt% of water based on the total weight of the binder. The binder thus prepared was named "aldol liquid phase".

(3) Preparation of the first mixture: 100 parts by weight of the inorganic powder and 65 parts by weight of the binder were put into a mixer and mixed for 30 minutes to prepare a first mixture.

(4) Preparation of Second Mixture: 100 mesh-sized gypsum powder and starch powder were mixed as a binding aid in the ratio of 1: 1 by weight to the mixed first mixture, followed by mixing with a mixer to prepare a second mixture. At this time, 25 weight parts of the coupling aid was added to 100 weight parts of the zeolite.

(5) Ring Formation: The second mixture was molded into a predetermined size, and then injected into a ventilator to form a ring of 15 mm in diameter as shown in FIG. 1 (a) to prepare a silicate fertilizer.

Example  2

A silicate fertilizer was prepared in the same manner as in Example 1, except that the diameter of the ring was changed to 20 mm.

Comparative Example  One

As shown in FIG. 2 (b), silicate fertilizer was prepared in the same manner as in Example 1, except that the diameter of the circle was 3 mm.

Test Example

Test Example  1: Evaluation of lettuce growth response

After the silicic acid fertilizers of Examples 1 and 2 and Comparative Example 1 were roughened with fertilizer at the time of lettuce implantation, lettuce density disorders were evaluated in each treatment group. The silicate fertilizer prepared in Examples 1 to 2 and Comparative Example 1 was subjected to root treatment in the lettuce seedlings by using 1 each of the silicate fertilizers per the lettuce seedlings, Respectively.

Referring to Table 1, the lettuce seedlings treated in Examples 1 and 2 showed a slightly better growth than the lettuce seedlings treated with Comparative Example 1 in terms of leaf coloration, Was confirmed as a safe sanitary law.

process After implantation Extract of fresh leaves (%) Leaf color
(SPAD)  Concentration disturbance (%) Comparative Example 1 normal 32 21 0 Example 1 normal 31 22 0 Example 2 normal 34 24 0 * Leaf extraction (%): (Leaf / leaf) 100
* Leaf color: Measured by SPOL value of tea leaf in Minolta leaf color system.
* Concentration disorder (%): Atrophy

Fig. 2 is a photograph showing the growth reaction after 21 days from the root treatment using the examples 1 to 2 and the comparative example 1 of the present invention at the time of lettuce implantation. Fig. Referring to FIG. 2, it can be seen that the growth promotion of lettuce after 21 days was remarkable in Examples 1 and 2 as compared with Comparative Example 1.

Test Example 2: Assessment of non-growth reaction

The silicate fertilizers of Example 1 and Comparative Example 1 were applied without cultivation and their degree of growth was evaluated. The silicate fertilizer of Example 1 and Comparative Example 1 was placed in the center of a circular pot (9 cm in diameter), and seedlings were sown on the circumference to observe growth conditions of radish after 21 days, and are shown in Table 2 below.

FIG. 3 is a photograph showing the growth state of radish after seven days by applying Example 1 and Comparative Example 1 of the present invention in non-sowing. In FIG. 3, the seeds after sowing had no germination trouble, and the growth of 7 days after sowing was short in petiole in Example 1 but thick and robust, and chlorophyll was remarkably increased in leaf color.

4 is a photograph showing the growth state of radish after 21 days by applying Example 1 and Comparative Example 1 of the present invention at non-sowing time. Referring to FIG. 4 and the following Table 2, the growth of Example 1 promoted leaf elongation by 18%, and the leaf color also became darker. It was also found from these results that the fertilizer application amount can be reduced when the silicate fertilizer of Example 1 is used.

process ground game Leaf Leaf color (SPAD) Comparative Example 1 3.2 12.0 (100%) 23 Example 1 3.4 14.2 (118%) 26

Test Example  3: Assessment of growth of Chinese cabbage

The silicate fertilizers of Examples 1 and 2 and Comparative Example 1 were applied during the cultivation of cabbage in open field, and their degree of growth was evaluated. When the Chinese cabbage was transplanted, 1 silicate of each of the silicate fertilizers of Examples 1 and 2 and Comparative Example 1 was put into the root portion, and the weight change, leaf length and leaf number after 2 weeks of transplantation were shown in Table 3 .

5 is a photograph showing the growth state after 4 weeks from the application of Examples 1 to 2 of the present invention and Comparative Example 1 in the cultivation of the non-grafted Chinese cabbage.

process Fresh weight (g / 2 weeks) Leaf length (cm) Leaves Comparative Example 1 492 (100%) 23.0 17 Example 1 678 (137.8%) 27.2 18 Example 2 680 (138.2%) 27.9 18

5 and Table 3, the Chinese cabbages to which Examples 1 and 2 were applied showed a healthy growth condition without any obstruction after the transplantation. Growth at 2 weeks after transplantation was as shown in Table 3, 1, and the leaf height was 4 ~ 5cm longer than that of Chinese cabbage.

Claims (11)

An inorganic powder, a binder and a binding aid,
Wherein the inorganic powder comprises zeolite, bentonite, elvan, Langbeinite and biotite,
Wherein the binder comprises liquid silicic acid, chitosan, corrosion acid, molybdenum, sodium alginate and water,
The binding aid includes at least one of gypsum powder, starch powder and wheat flour,
Characterized in that it has a ring shape having a diameter of 5 mm to 30 mm.
The siliceous crystal fertilizer according to claim 1, which comprises 100 parts by weight of inorganic powder, 40 to 70 parts by weight of a binder and 15 to 30 parts by weight of a binding aid.
The method according to claim 1, wherein the inorganic powder comprises 50 to 75% by weight of zeolite, 15 to 25% by weight of bentonite, 1 to 10% by weight of elvan, 3 to 10% by weight of ranbenite and 1 to 10% ≪ / RTI >
The silicate fertilizer according to claim 1, wherein the inorganic powder has a particle size of 50 to 300 mesh.
The method according to claim 1, wherein 10 to 25 wt% of liquid silicic acid, 0.01 to 15 wt% of chitosan, 5 to 12 wt% of corrosive acid, 0.05 to 5 wt% of molybdenum, 3 to 10 wt% of sodium alginate, And adjusting the water content of the remaining portion of the silicate to be contained.
The method of claim 1, wherein the liquid silicic acid is _{CaSiO 3, Na 2 SiO 3,} MgSiO 3 And K ₂ SiO ₃ , wherein the water-soluble silicate comprises at least one water-soluble silicate selected from the group consisting of K ₂ SiO ₃ .
Mixing the inorganic powder and the binder to form a first mixture;
Mixing the first mixture with a binding aid to form a second mixture; And
And molding the second mixture into a ring shape having a diameter of 5 mm to 30 mm,
Wherein the inorganic powder comprises zeolite, bentonite, elvan, Langbeinite and biotite,
Wherein the binder comprises liquid silicic acid, chitosan, corrosion acid, molybdenum, sodium alginate and water,
Wherein the binding aid comprises at least one of gypsum powder, starch powder and wheat flour.
The method according to claim 7, wherein each of the components is adjusted to include 100 parts by weight of inorganic powder, 40 to 70 parts by weight of a binder, and 15 to 30 parts by weight of a binding aid.
[7] The method of claim 7, wherein the binder is prepared by mixing a corrosive acid powder and water and warming them to prepare a solution of a corrosive acid and then aging the mixture first;
Mixing the aged corrosion acid solution with liquid chitosan followed by secondary aging to prepare a mixed solution; And
And mixing liquid silicate, molybdenum, and sodium alginate with the mixed solution.
[Claim 7] The method according to claim 7, wherein 10 to 25 wt% of liquid silicic acid, 0.01 to 15 wt% of chitosan, 5 to 12 wt% of corrosive acid, 0.05 to 5 wt% of molybdenum, 3 to 10 wt% And adjusting the water content of the remaining portion of the silicate fertilizer to include water.
The method according to claim 9, further comprising adding water to the mixed acid solution of chitosan and chitosan before mixing the liquid silicate with the mixed solution, followed by filtration to remove air bubbles.

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