KR20180020549A - Water-soluble silicate fertilizer - Google Patents

Abstract

The present invention relates to a water-soluble silicate fertilizer. In one example, the water-soluble silicate fertilizer comprises: 100 parts by weight of water-soluble alkali silicate; 6-16 parts by weight of potassium phosphate (K_4HPO_4); 6-16 parts by weight of calcium carbonate (CaCO_3); 4-10 parts by weight of sodium hexametaphosphate ((NaPO_3)_6); 6-16 parts by weight of magnesium oxide; 6-16 parts by weight of a phosphorus compound; 6-25 parts by weight of a humic substance; and 0.5-7 parts by weight of an organic acid, wherein the water-soluble alkali silicate comprises one or more selected from calcium silicate (CaSiO_3), sodium silicate (Na_2SiO_3), and potassium silicate (K_2SiO_3); and the humic substance contains humic acid and pulvic acid.

Description

Water-soluble silicate fertilizer {WATER-SOLUBLE SILICATE FERTILIZER}

The present invention relates to a water soluble 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 growing sugarcane, corn, cucumber and strawberry .

On the other hand, water-soluble silicate has been proved to be harmless to soil, plant, livestock and human body and is used as an organic material in the use criterion of the environment friendly agricultural material in Article 7 of the environment friendly agricultural promotion law. However, due to the nature of the manufacturing process, such a water-soluble silicate has a strong base in combination with anions such as potassium, calcium, and magnesium, which are cationic silicate ions, and is inconvenient for use in a farm.

BACKGROUND ART [0002] The background art relating to the present invention is disclosed in Korean Patent Registration No. 10-0756185 (published on Sep. 5, 2007, entitled " Manufacturing Method of Agricultural Plant Growth Growth Agent Using Waste Glass).

It is an object of the present invention to provide a water-soluble silicate fertilizer having an effect of improving crop productivity and an effect of improving soil.

Another object of the present invention is to provide a water-soluble silicate fertilizer which improves the fertilizing efficiency of the fertilizer and is excellent in absorbency into crops.

Another object of the present invention is to provide a water-soluble silicate fertilizer excellent in workability and economy.

One aspect of the present invention relates to a water soluble silicate fertilizer. In one embodiment, the water soluble silicate fertilizer comprises 100 parts by weight of a water soluble alkali silicate, 6-16 parts by weight of potassium phosphate (K ₄ HPO ₄ ), 6-16 parts by weight of calcium carbonate (CaCO ₃ ), sodium hexametaphosphate ((NaPO ₃ ) ₆ to 16 parts by weight of a phosphorus compound, 6 to 25 parts by weight of a humic substance and 0.5 to 7 parts by weight of an organic acid, the alkali silicate is a calcium silicate (CaSiO _3), sodium silicate (Na ₂ SiO ₃₎ and potassium include one or more of the (K ₂ SiO _3), and the humus is a humic acid (humic acid) and fulvic acids (pulvic acid) .

In one embodiment, the potassium phosphate, calcium carbonate, and sodium hexametaphosphate may be included in a weight ratio of 1: 0.1 to 3: 0.1 to 3.

In one embodiment, the humectant may comprise humic acid and fulvic acid in a weight ratio of 1: 0.001 to 0.5.

When the water-soluble silicate fertilizer of the present invention is applied, it has excellent crop productivity improvement effect and soil improvement effect, excellent fertilizer fertilization efficiency, excellent absorbability to crops, and excellent workability and economical efficiency.

Hereinafter, the present invention will be described in detail. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to be exemplary, self-explanatory, allowing for equivalent explanations of the present invention.

Water soluble silicate fertilizer

One aspect of the present invention relates to a water soluble silicate fertilizer. In one embodiment, the water soluble silicate fertilizer comprises a water soluble alkali silicate, potassium phosphate, calcium carbonate, sodium hexametaphosphate, magnesium oxide, phosphorus compounds, humectants and organic acids. For example, 100 parts by weight of water-soluble alkali silicate, potassium phosphate _{(K 4 HPO 4) 6 ~} 16 parts by weight of calcium carbonate (CaCO ₃₎ 6 ~ 16 parts by weight of sodium hexametaphosphate _{((NaPO 3) 6) 4} ~ 6 to 16 parts by weight of a phosphorus compound, 6 to 25 parts by weight of a humic substance and 0.5 to 7 parts by weight of an organic acid.

The water-soluble alkali silicate comprises one or more of calcium silicate (CaSiO _3), sodium silicate (Na ₂ SiO ₃₎ and potassium silicate (K ₂ SiO _3). In one embodiment, the water-soluble alkali silicate may be prepared by mixing silica or sodium silicate with potassium carbonate or sodium carbonate, heating the mixture in a furnace at a temperature of 1500 ° C or higher, filtering, refining, or adjusting the components. The water-soluble silicate fertilizer of the present invention comprising the above-mentioned water-soluble alkali silicate is easily dissolved in water to provide excellent workability in fertilizing, excellent in environment-friendly property, neutralized and improved in acidified soil, Can be excellent.

In one embodiment, the water-soluble alkali silicate may be used in the form of a powder having a size of 50 to 500 mesh. The " size " is defined as the " maximum length " of the powder.

The potassium phosphate (K ₄ HPO ₄ ) promotes plant photosynthesis, protein synthesis from amino acids, and promotes plant growth. In one embodiment, the potassium phosphate is contained in an amount of 6 to 16 parts by weight based on 100 parts by weight of the water-soluble alkali silicate. If the calcium phosphate is contained in an amount of less than 6 parts by weight, the absorption of the plant may occur when the calcium phosphate is contained in an amount exceeding 16 parts by weight.

The calcium carbonate (CaCO ₃ ) acts as a plant cell membrane and neutralizes the acidic soil to correct the soil reaction, thereby promoting the activity of the soil microorganism and improving the soil environment suitable for plant growth. In one embodiment, the calcium carbonate is contained in an amount of 6 to 16 parts by weight based on 100 parts by weight of the water-soluble alkali silicate. When the amount of the calcium carbonate is less than 6 parts by weight, the effect of the addition is insignificant. When the amount of the calcium carbonate is more than 16 parts by weight, the plant growth promoting effect may be lowered.

The sodium hexametaphosphate ((NaPO ₃ ) ₆ ) has the effect of removing heavy metals in soil and plants and promoting plant growth. In one embodiment, the sodium hexametaphosphate is contained in an amount of 4 to 10 parts by weight based on 100 parts by weight of the water-soluble alkali silicate. If the sodium hexametaphosphate is contained in an amount of less than 4 parts by weight, the addition effect thereof is insignificant. If the sodium hexametaphosphate is contained in an amount exceeding 10 parts by weight, the plant growth promoting effect may be lowered.

In one embodiment, the potassium phosphate, calcium carbonate, and sodium hexametaphosphate may be included in a weight ratio of 1: 0.1 to 3: 0.1 to 3. When included at the above weight ratio, an unpredictable synergistic effect occurs between the above components, so that it is easily dissolved in water when fertilizing the soil, so that the workability is excellent and the soil improvement effect and the plant growth effect can be excellent. For example, in a weight ratio of 1: 0.5 to 1.5: 0.5 to 1.5.

The above-mentioned magnesium oxide (MgO) is included for the purpose of accelerating the plant growth by increasing the plant absorption rate of the phosphorus compound included in the present invention together with the alkalization of the acidic soil. In one embodiment, the magnesium oxide is contained in an amount of 6 to 16 parts by weight based on 100 parts by weight of the water-soluble alkali silicate. When the magnesium oxide is contained in an amount of less than 6 parts by weight, the addition effect thereof is insignificant. When the magnesium oxide is contained in an amount exceeding 16 parts by weight, the plant growth promoting effect may be deteriorated.

In one embodiment, the phosphorus compound may include one or more of phosphoric acid (H ₃ PO ₄ ), phosphorous acid (H ₃ PO ₃ ), phosphorus trioxide (P ₂ O ₃ ) and phosphorus pentoxide (P ₂ O ₅ ). When the phosphorus compound is incorporated, productivity of the plant can be improved by improving cell proliferation, photosynthesis and respiration. In one embodiment, the phosphorus compound is included in an amount of 6 to 16 parts by weight based on 100 parts by weight of the water-soluble alkali silicate. When the phosphorus compound is contained in an amount of less than 6 parts by weight, the effect of the addition is insignificant. When the phosphorus compound is contained in an amount of more than 16 parts by weight, the effect of controlling pH of the soil may be lowered.

The humus can be included for the purpose of preventing plant diseases and promoting growth, along with removal of heavy metals and odors contained in soil and plants by reaction such as complex formation. In addition, the cation exchange ability is excellent, and the effect of supplying the plant with a cation such as phosphoric acid which is excessively adsorbed on the soil is excellent.

In one embodiment, the humectant includes humic acid and fulvic acid. Conventional humic acid and fulvic acid may be used. For example, the humic acid and fulvic acid may be extracted from natural humic substances by the method described in Korean Patent Publication No. 2012-0108816, but the present invention is not limited thereto.

In one embodiment, the humectant is contained in an amount of 6 to 25 parts by weight based on 100 parts by weight of the water-soluble alkali silicate. When the humectant is contained in an amount of less than 6 parts by weight, the addition effect thereof is insignificant. When the humectant is contained in an amount exceeding 25 parts by weight, there is no further plant growth and soil improvement effect.

In one embodiment, the humectant may include humic acid and fulvic acid in a weight ratio of 1: 0.001 to 0.5. In the above range, removal of heavy metals from the soil and removal of offensive odor are excellent, the rooting and growth promoting effect of the plant is excellent, and it can be advantageous from the viewpoint of cost. For example, in a weight ratio of 1: 0.01 to 0.15. For example, in a weight ratio of 1: 0.05 to 0.1.

The organic acid assists the growth of the plant and supplies the crop with a phosphoric acid compound which is accumulated in the soil such as rice fields and fields. In one embodiment, the organic acid is selected from the group consisting of citric acid (C ₆ H ₈ O ₇ ), malic acid (C ₄ H ₆ O ₅ ), maleic acid (C ₄ H ₄ O ₄ ), oxalic acid _{oxalic acid, C 2 H 2 O} 4), acetic acid _{(acetic acid, CH 3 COOH)} , formic acid (formic acid, HCOOH), lactic acid _{(lactic acid, CH 3 CHOHCOOH)} , fumaric acid _{(fumaric acid, C 4 H 4} O 4 ), Tartaric acid (C ₄ H ₅ O ₆ ), ascorbic acid (C ₆ H ₈ O ₆ ), and sulfamic acid (H ₂ NSO ₃ H).

In one embodiment, the organic acid is included in an amount of 0.5 to 7 parts by weight based on 100 parts by weight of the water-soluble alkali silicate. When the amount of the organic acid is less than 0.5 parts by weight, the effect of the addition is insignificant. When the amount of the organic acid is more than 25 parts by weight, the pH control effect of the acidic soil may be deteriorated.

Manufacturing method of water-soluble silicate fertilizer

Another aspect of the present invention relates to a method for producing the water soluble silicate fertilizer. In one embodiment, the method for producing the water soluble silicate fertilizer comprises the steps of: (S10) preparing a first pulverized product; (S20) a second pulverized product production step; (S30) preparing a mixture; And (S40) a drying step. More specifically, the method for producing the water-soluble silicate fertilizer comprises the steps of (S10) firstly pulverizing a water-soluble alkali silicate, potassium phosphate, calcium carbonate, sodium hexametaphosphate and magnesium oxide to form a first pulverized product; (S20) Secondarily pulverizing the first pulverized material to prepare a second pulverized material; (S30) adding a phosphorus compound, a humectant and an organic acid to the second pulverized product to prepare a mixture; And (S40) drying the mixture.

Hereinafter, the process for producing the water-soluble silicate according to the present invention will be described in detail.

(S10) Crushed water  Manufacturing stage

The above step is a step of firstly pulverizing a water-soluble alkali silicate, potassium phosphate, calcium carbonate, sodium hexametaphosphate, and magnesium oxide to prepare a first pulverized product. In one embodiment, 100 parts by weight of the water-soluble alkali silicate, 6 to 16 parts by weight of potassium phosphate, 6 to 16 parts by weight of calcium carbonate, 4 to 10 parts by weight of sodium hexametaphosphate and 6 to 16 parts by weight of magnesium oxide are first pulverized The first pulverized product can be produced.

The water-soluble alkali silicate comprises one or more of calcium silicate (CaSiO _3), sodium silicate (Na ₂ SiO ₃₎ and potassium silicate (K ₂ SiO _3). Here, the same components as those described above can be used as the components used in the first pulverized product, so that a detailed description thereof will be omitted.

In one embodiment, the first pulverization can be performed by pulverizing the water-soluble alkali silicate, potassium phosphate, calcium carbonate, sodium hexametaphosphate, and magnesium oxide to a size of 50 to 200 mesh. When milling to the above-mentioned size, the mixing property can be excellent.

(S20) Crushed water  Manufacturing stage

The above step is a step of secondly pulverizing the first pulverized product to prepare a second pulverized product. In one embodiment, the second pulverization may pulverize the first pulverized product to a size of 200 to 500 mesh. When pulverized to the above-mentioned size, it is excellent in mixing property and can be easily absorbed into plants in soil.

(S30) Preparation of the mixture

In this step, a phosphorus compound, a humectant and an organic acid are added to the second pulverized product to prepare a mixture. In one embodiment, 6 to 16 parts by weight of the phosphorus compound, 6 to 25 parts by weight of the humus, and 0.5 to 7 parts by weight of the organic acid may be added to 100 parts by weight of the water-soluble alkali silicate. The potassium phosphate, calcium carbonate and sodium hexametaphosphate may be contained in a weight ratio of 1: 0.1 to 3: 0.1 to 3. The humectant includes humic acid and pulvic acid. In one embodiment, the humectant may comprise humic acid and fulvic acid in a weight ratio of 1: 0.001 to 0.5. The phosphorus compound, the humectant, and the organic acid component can be the same as those described above, so that a detailed description thereof will be omitted.

(S40) Drying step

This step is a step of drying the mixture. In one embodiment, the drying may be performed at 80 ° C to 90 ° C for 10 minutes to 25 minutes. Drying can be easily performed under the above conditions.

In one embodiment, the dried mixture may be thirdly pulverized to a size of 200 to 500 mesh, and then molded into a predetermined shape.

When the water-soluble silicate fertilizer of the present invention is applied, it has excellent crop productivity improvement effect and soil improvement effect, excellent fertilizer fertilization efficiency, excellent absorbability to crops, and excellent workability and economical efficiency.

Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to preferred embodiments of the present invention. It is to be understood, however, that the same is by way of illustration and example only and is not to be construed in a limiting sense.

Example

, 10 parts by weight of potassium phosphate (K ₄ HPO ₄ ), 10 parts by weight of calcium carbonate (CaCO ₃ ), sodium hexametaphosphate ((NaPO ₃ ) ₆ ), 100 parts by weight of water-soluble alkali silicate (sodium silicate (Na ₂ SiO ₃ ) 15 parts by weight and magnesium oxide (MgO) 12 parts by weight were charged into a stirrer and primary pulverized to a size of 100 meshes to prepare a first pulverized product. The first pulverized product was secondly pulverized to a size of 200 mesh, Water was prepared. (H ₃ PO ₄ ), phosphorous acid (H ₃ PO ₃ ), phosphorus trioxide (P ₂ O ₃ ) and phosphorus pentoxide (P ₂ O ₅ ) are added to the second pulverized product on the basis of 100 parts by weight of the water-soluble alkali silicate ), 20 parts by weight of humus (containing humic acid and fulvic acid 1: 0.05 parts by weight) and 3 parts by weight of organic acid (citric acid) were mixed and uniformly mixed to prepare a mixture. Then, the mixture was dried at 85 캜 for 20 minutes, and then pulverized to a size of 200 mesh to form a water-soluble silicate fertilizer.

Claims (3)

6 to 16 parts by weight of potassium phosphate (K ₄ HPO ₄ ), 6 to 16 parts by weight of calcium carbonate (CaCO ₃ ), 4 to 10 parts by weight of sodium hexametaphosphate ((NaPO ₃ ) ₆ ) 6 to 16 parts by weight of magnesium oxide (MgO), 6 to 16 parts by weight of phosphorus compound, 6 to 25 parts by weight of humic substance and 0.5 to 7 parts by weight of organic acid,
The water-soluble alkali silicate comprises one or more of calcium silicate (CaSiO _3), sodium silicate (Na ₂ SiO ₃₎ and potassium silicate (K ₂ SiO _3),
Wherein the humectant comprises humic acid and pulvic acid. ≪ RTI ID = 0.0 > 11. < / RTI >
The water-soluble silicate fertilizer according to claim 1, wherein the potassium phosphate, calcium carbonate and sodium hexametaphosphate are contained in a weight ratio of 1: 0.1 to 3: 0.1 to 3.
The water-soluble silicate fertilizer according to claim 1, wherein the humectant comprises humic acid and fulvic acid in a weight ratio of 1: 0.001 to 0.5.