KR102426217B1 - Water-soluble silicate fertilizer - Google Patents

Abstract

The present invention relates to a water-soluble silicate fertilizer. In one embodiment, the water-soluble silicate fertilizer is 100 parts by weight of water-soluble alkali silicate, potassium phosphate (KH ₂ PO ₄ ) 6-16 parts by weight, calcium carbonate (CaCO ₃ ) 6-16 parts by weight, sodium hexametaphosphate ((NaPO ₃ ) ) ₆ ) 4-10 parts by weight, magnesium oxide (MgO) 6-16 parts by weight, phosphorus compound 6-16 parts by weight, humic substance 6-25 parts by weight, and organic acid 0.5-7 parts by weight, the water-soluble The alkali silicate includes at least one of calcium silicate (CaSiO ₃ ), sodium silicate (Na ₂ SiO ₃ ) and potassium silicate (K ₂ SiO ₃ ), and the humic acid is humic acid and fulvic acid (pulvic acid) include

Description

WATER-SOLUBLE SILICATE FERTILIZER

The present invention relates to a water-soluble silicate fertilizer.

Silicon (Si) is abundant on the surface of the earth, and although it is not generally included as an essential element in plants, it has an important meaning as a constituent of plants. It is known that silicon absorbed from the root of a plant moves with transpiration and accumulates in the intracellular cell wall, intercellular space, and outer layer (Marschner et al., 1990). Such silicon accumulates in the roots, stems, and leaves of plants (Vorm, 1980; Parry and Kelso, 1975), and plays a role in enhancing photosynthesis by physically strengthening the cell wall of plants or increasing the availability of light in the leaves. (Adatia and Besford, 1986; Ma, J. and E. Takahashi. 1993).

Silicic acid is a general name of a compound in which silicon, oxygen, and hydrogen are mixed, and means that silicon dioxide and water are combined. The silicic acid is deposited in the epidermal cells of leaves or stems and silicified to improve the production and quality of crops and increase stress resistance, and the plant body has a function of neutralizing various harmful components without toxicity. The silicic acid present in the soil is absorbed by the roots of crops in the form of water-soluble silicic acid (salt), increasing resistance to pests and diseases. .

On the other hand, water-soluble silicate has been proven to be harmless to soil, plants, livestock and the human body, and is included in the criteria for use of eco-friendly agricultural materials in Article 7 of the Eco-Friendly Agriculture Promotion Act and is used as an organic material. However, these water-soluble silicates have a strong base in combination with cations potassium, calcium, and magnesium in anionic silicate ions due to the characteristics of the manufacturing process, which is inconvenient to use in farms.

Background art related to the present invention is disclosed in Republic of Korea Patent Publication No. 10-0756185 (2007.09.05. Announcement, title of the invention: manufacturing method of an agricultural plant growth agent using waste glass).

An object of the present invention is to provide a water-soluble silicate fertilizer excellent in the effect of improving crop productivity and improving the soil.

Another object of the present invention is to provide a water-soluble silicate fertilizer that improves the fertilization efficiency of the fertilizer and has excellent absorbency into crops.

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

One aspect of the present invention relates to a water-soluble silicate fertilizer. In one embodiment, the water-soluble silicate fertilizer is 100 parts by weight of water-soluble alkali silicate, potassium phosphate (KH ₂ PO ₄ ) 6-16 parts by weight, calcium carbonate (CaCO ₃ ) 6-16 parts by weight, sodium hexametaphosphate ((NaPO ₃ ) ) ₆ ) 4-10 parts by weight, magnesium oxide (MgO) 6-16 parts by weight, phosphorus compound 6-16 parts by weight, humic substance 6-25 parts by weight, and organic acid 0.5-7 parts by weight, the water-soluble The alkali silicate includes at least one of calcium silicate (CaSiO ₃ ), sodium silicate (Na ₂ SiO ₃ ) and potassium silicate (K ₂ SiO ₃ ), and the humic acid is humic acid and fulvic acid (pulvic acid) include

In one embodiment, the humus may include 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, the effect of improving crop productivity and soil improvement is excellent, the efficiency of fertilizer application and absorption into crops are excellent, and workability and economic efficiency can be excellent.

Hereinafter, the present invention will be described in detail. In this case, when it is determined that a detailed description of a related known technology or configuration may unnecessarily obscure the gist of the present invention in describing the present invention, the detailed description thereof will be omitted.

And the terms described below are terms defined in consideration of functions in the present invention, which may vary depending on the intention or custom of the user or operator, so the definition should be made based on the content throughout this specification describing 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 includes water-soluble alkali silicate, potassium phosphate, calcium carbonate, sodium hexametaphosphate, magnesium oxide, phosphorus compounds, humus and organic acids. For example, 100 parts by weight of water-soluble alkali silicate, potassium phosphate (KH ₂ PO ₄ ) 6 to 16 parts by weight, calcium carbonate (CaCO ₃ ) 6 to 16 parts by weight, sodium hexametaphosphate ((NaPO ₃ ) ₆ ) 4 to 10 parts by weight, 6 to 16 parts by weight of magnesium oxide (MgO), 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 includes at least one 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 stone or silica sand with potassium carbonate or sodium carbonate and heating it in a furnace at a temperature of 1500° C. or higher, filtration, purification, component adjustment, and the like. The water-soluble silicate fertilizer of the present invention containing the water-soluble alkali silicate is easily soluble in water and has excellent fertilization workability, excellent eco-friendliness, neutralization and improvement effect of acidified soil, prevention of plant diseases, pests and growth promotion effect 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 (KH ₂ PO ₄ ) promotes plant photosynthesis and protein synthesis from amino acids, thereby promoting plant growth. In one embodiment, the potassium phosphate 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 calcium phosphate is included in an amount of less than 6 parts by weight, when it is included in an amount exceeding 16 parts by weight, a malabsorption phenomenon of plants may occur.

The calcium carbonate (CaCO ₃ ) serves as a plant cell membrane composition, neutralizes acidic soil and corrects the soil reaction, thereby promoting the activity of soil microorganisms and improving the soil environment suitable for plant growth. In one embodiment, the calcium carbonate 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 calcium carbonate is included in an amount of less than 6 parts by weight, the effect of its addition is insignificant, and when it is included in an amount exceeding 16 parts by weight, the effect of promoting plant growth may be reduced.

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

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

The magnesium oxide (MgO) is included for the purpose of increasing plant absorption of the phosphorus compound included in the present invention with alkalization of acidic soil, and promoting plant growth. In one embodiment, the magnesium oxide 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 magnesium oxide is included in an amount of less than 6 parts by weight, the effect of its addition is insignificant, and when it is included in an amount exceeding 16 parts by weight, the effect of promoting plant growth may be reduced.

In one embodiment, the phosphorus compound may include at least one 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 included, it is possible to improve productivity by improving cell proliferation, photosynthesis and respiration of plants. 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 included in an amount of less than 6 parts by weight, the effect of its addition is insignificant, and when it is included in an amount exceeding 16 parts by weight, effects such as soil pH control may be rather reduced.

The humus may be included for the purpose of preventing plant pests 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 substitution ability is excellent, and the effect of supplying cations such as phosphoric acid excessively adsorbed to the soil to plants is excellent.

In one embodiment, the humus comprises humic acid and fulvic acid. As the humic acid and fulvic acid, conventional ones may be used. For example, the humic acid and fulvic acid may be extracted from a natural humic material by the method described in Korean Patent Application Laid-Open No. 2012-0108816, but is not limited thereto.

In one embodiment, the humus is included in an amount of 6 to 25 parts by weight based on 100 parts by weight of the water-soluble alkali silicate. When the humus is included in an amount of less than 6 parts by weight, the effect of its addition is insignificant, and when it is included in an amount exceeding 25 parts by weight, there is no further effect of plant growth and soil improvement, and economic efficiency may be lowered due to an increase in cost.

In one embodiment, the humus may include humic acid and fulvic acid in a weight ratio of 1:0.001 to 0.5. In the above range, the effect of removing heavy metals from the soil and removing odors is excellent, the effect of promoting rooting and growth of plants is excellent, and it may be advantageous in terms of cost. For example, it may be included in a weight ratio of 1:0.01 to 0.15. For another example, it may be included in a weight ratio of 1:0.05 to 0.1.

The organic acid assists in the growth of plants, and supplies the phosphoric acid compound excessively accumulated in the soil such as paddy fields and fields to crops. In one embodiment, the organic acid is 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 (CH ₃ COOH), formic acid (HCOOH), lactic acid (CH ₃ CHOHCOOH), 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) may include one or more.

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 organic acid is included in an amount of less than 0.5 parts by weight, the effect of its addition is insignificant, and when it is included in an amount exceeding 7 parts by weight, the pH control effect of the acidic soil may be reduced.

Manufacturing method of water-soluble silicate fertilizer

Another aspect of the present invention relates to a method for preparing the water-soluble silicate fertilizer. In one embodiment, the method for producing the water-soluble silicate fertilizer includes (S10) a first pulverized product manufacturing step; (S20) a second pulverized product manufacturing step; (S30) mixture preparation step; and (S40) drying step. More specifically, the method for producing the water-soluble silicate fertilizer includes the steps of (S10) preparing a first pulverized product by first pulverizing a water-soluble alkali silicate, potassium phosphate, calcium carbonate, sodium hexametaphosphate and magnesium oxide; (S20) secondly pulverizing the first pulverized product to prepare a second pulverized product; (S30) preparing a mixture by adding a phosphorus compound, humus and organic acid to the second pulverized product; and (S40) drying the mixture.

Hereinafter, the method for producing a water-soluble silicate according to the present invention will be described in detail step by step.

(S10) first crushed material manufacturing stage

The above step is a step of preparing a first pulverized product by first pulverizing a water-soluble alkali silicate, potassium phosphate, calcium carbonate, sodium hexametaphosphate, and magnesium oxide. 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 to A first pulverized product may be prepared.

The water-soluble alkali silicate includes at least one of calcium silicate (CaSiO ₃ ), sodium silicate (Na ₂ SiO ₃ ), and potassium silicate (K ₂ SiO ₃ ). Here, the components used in the first pulverized product may be the same as those described above, and thus a detailed description thereof will be omitted.

In one embodiment, the first pulverization may 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 to prepare a first pulverized product. When pulverized to the above size, mixability may be excellent.

(S20) second crushed material manufacturing stage

The step is a step of preparing a second pulverized product by secondary pulverizing the first pulverized material. 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 size, the mixability is excellent, and it can be easily absorbed by plants into the soil.

(S30) mixture preparation step

The step is a step of preparing a mixture by adding a phosphorus compound, humus, and an organic acid to the second pulverized material. 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 and mixed with respect to 100 parts by weight of the water-soluble alkali silicate. The humus includes humic acid and pulvic acid. In one embodiment, the humus may include humic acid and fulvic acid in a weight ratio of 1:0.001 to 0.5. As the phosphorus compound, humus and organic acid components, the same as those described above may be used, and thus 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 accomplished by drying at 80° C. to 90° C. for 10 minutes to 25 minutes. Drying can be easily accomplished 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, the effect of improving crop productivity and soil improvement is excellent, the efficiency of fertilizer application and absorption into crops are excellent, and workability and economic efficiency can be excellent.

Hereinafter, the configuration and operation of the present invention will be described in more detail through preferred embodiments of the present invention. However, these are presented as preferred examples of the present invention and cannot be construed as limiting the present invention in any sense.

Example

Water-soluble alkali silicate (sodium silicate (Na ₂ SiO ₃ )) 100 parts by weight, potassium phosphate (KH ₂ PO ₄ ) 10 parts by weight, calcium carbonate (CaCO ₃ ) 10 parts by weight, sodium hexametaphosphate ((NaPO ₃ ) ₆ ) 10 parts by weight and 12 parts by weight of magnesium oxide (MgO) were put into a stirrer, and first pulverized to a size of 100 mesh to prepare a first pulverized product, and second pulverized by second pulverizing the first pulverized product to a size of 200 mesh Water was prepared. Phosphorus compound (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 ) in the second pulverized product based on 100 parts by weight of the water-soluble alkali silicate )) 10 parts by weight, 20 parts by weight of humic acid (including 1:0.05 parts by weight of humic acid and fulvic acid) and 3 parts by weight of organic acid (citric acid) were added and uniformly mixed to prepare a mixture. Then, the mixture was dried at 85° C. for 20 minutes, and then thirdly pulverized to a size of 200 mesh and molded into a predetermined shape to prepare a water-soluble silicate fertilizer.

Claims (3)

Water-soluble alkali silicate 100 parts by weight, potassium phosphate (KH ₂ PO ₄ ) 10 to 16 parts by weight, calcium carbonate (CaCO ₃ ) 10 to 16 parts by weight, sodium hexametaphosphate ((NaPO ₃ ) ₆ ) 4 to 10 parts by weight, 6 to 16 parts by weight of magnesium oxide (MgO), 6 to 16 parts by weight of a phosphorus compound, 6 to 25 parts by weight of a humic substance, and 3 to 7 parts by weight of an organic acid,
The water-soluble alkali silicate includes at least one of calcium silicate (CaSiO ₃ ), sodium silicate (Na ₂ SiO ₃ ) and potassium silicate (K ₂ SiO ₃ ),
The phosphorus compound includes 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 ),
The humus includes humic acid and pulvic acid,
The organic acid is a water-soluble silicate fertilizer comprising citric acid.
delete The water-soluble silicate fertilizer according to claim 1, wherein the humus contains humic acid and fulvic acid in a weight ratio of 1:0.001 to 0.5.