JP2011162425A - Colored fertilizer for plant - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new colored fertilizer for plants, which is free from agglomeration and precipitation, and is excellently dispersed. <P>SOLUTION: The colored fertilizer for plants is prepared, which contains: at least one fertilizer component selected from a group comprising nitrogen, phosphorus and potassium; an organic pigment; and a water-soluble resin and has ≥60 wt.% moisture content. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a colored fertilizer for plants which also has a function as a coloring agent for plants, particularly turf. More particularly, it relates to a colored fertilizer for plants containing an organic pigment.

  Plants in general, especially lawns, especially golf courses and the like, are in a state where a vivid green color is desired, and it is desirable that the green color is always constant. For this reason, it has become a concern to prevent the winter season withering that occurs naturally depending on the variety and to maximize the greening period.

In recent years, various green color retention techniques have been proposed. Although it is conceivable to make the turf varieties difficult to wither, it is expensive and may not be practical for a wide range of places. On the other hand, the method of spraying chemicals and fertilizers on the turf leaves is easy to implement in terms of price. As such a method, there is a method (Patent Document 1) in which a plurality of types of plant hormones are mixed and dispersed. However, the extended period of the green leaf stage due to the spraying of the drug is limited to about 4 to 8 weeks at the longest, and eventually it is not possible to prevent the lawn from withering and yellowing in the cold winter season. Absent.

Furthermore, a soil improvement material for extending the green leaf season of turf (Patent Document 2), etc., mainly made of aluminum ore has been proposed.

JP-A-6-336407 JP 2004-059734 A

An object of this invention is to provide the fertilizer with a coloring agent which prevents withering of a plant, especially a lawn, and a lawn can exhibit colorful green.

By adding fertilizer to an aqueous solution system in which organic pigments are dispersed, the inventors find that the phenomenon of aggregation and precipitation of components due to the influence of the charge between components is eliminated in a specific component. As a result of intensive investigations to solve the above-mentioned problems, the present inventors succeeded in preparing a novel colored fertilizer for plants that has both fertilizer effect and coloring effect while having good dispersibility. It came to complete.

The present invention relates to a colored fertilizer for plants containing at least one fertilizer component selected from the group consisting of nitrogen, phosphorus, and potassium, an organic pigment, and a water-soluble resin, and having a water content of 60% by weight or more.

In the colored fertilizer for plants, the ratio of the fertilizer component to the whole colored fertilizer for plants is 0.1 to 1.0% by weight as the total amount of nitrogen, 0.05 to 0.5% by weight as water-soluble phosphoric acid, and It may be 0.1 to 1.0% by weight as water-soluble potassium.

In the colored fertilizer for plants, the water-soluble resin is selected from the group consisting of glue, gelatin, shellac resin, styrene resin, acrylic resin, polyester resin, polyurethane resin, polyvinyl alcohol, polyvinyl pyrrolidone, and cellulose resin. There may be at least one selected.

The colored fertilizer for plants may further contain one or more water-soluble organic solvents selected from the group consisting of glycerin, alkylene glycol, and alkylene glycol alkyl ether.

The fertilizer component can be obtained by dissolving at least one compound selected from the group consisting of sodium pyrophosphate, sodium hexametaphosphate, thiourea, urea, dibasic ammonium phosphate, and potassium nitrate.

The fertilizer component is obtained by dissolving one type selected from the group consisting of sodium pyrophosphate, sodium hexametaphosphate, and dibasic ammonium phosphate, one type selected from the group consisting of thiourea and urea, and potassium nitrate. Can be obtained.

The fertilizer component can be obtained by dissolving urea, dibasic ammonium phosphate, and potassium nitrate.

  The colored fertilizer for plants of the present invention has good dispersibility between the organic pigment and the fertilizer component in the liquid, hardly causes aggregation and precipitation over time, and further efficiently performs coloring and fertilization on the turf simultaneously. In this way, it is possible to prevent the turf from withering and to color the vibrant green with respect to the withered lawn.

FIG. 1 is a comparison of the greening effect when colored fertilizer is applied to Korean turf compared with the case where no colored fertilizer is applied.

The colored fertilizer for plants of the present invention contains at least one fertilizer component selected from the group consisting of nitrogen, phosphorus, and potassium, an organic pigment, and a water-soluble resin, and has a water content of 60% by weight or more. is there.

The at least one fertilizer component selected from the group consisting of nitrogen, phosphorus, and potassium is preferably a fertilizer component that includes all of the elements of nitrogen, phosphorus, and potassium, and optionally includes other elements.

Nitrogen is preferably contained in an amount of 0.1 to 1.0% by weight of the colored fertilizer for plants as the total amount of nitrogen, more preferably at least 0.2% by weight of the colored fertilizer for plants. % By weight to 0.6% by weight is preferable, and about 0.3% by weight is most preferable. The nitrogen source is not particularly limited, and for example, any of urea, ammonia nitrogen, and nitrate nitrogen is used.

Phosphorus is preferably contained as water-soluble phosphoric acid in an amount of 0.05% to 0.5% by weight of the colored fertilizer for plants, more preferably at least 0.1% by weight of the colored fertilizer for plants. More preferably, the content is about 0.1 to 0.3% by weight, and most preferably about 0.2% by weight.

Potassium is preferably contained as water-soluble potassium in an amount of 0.1 to 1.0% by weight of the colored fertilizer for plants, more preferably at least 0.2% by weight of the colored fertilizer for plants. More preferably, it is contained in an amount of about 0.1 to 0.3% by weight, and most preferably about 0.23 to 0.25% by weight.

Specifically, although not limited, sodium pyrophosphate, sodium hexametaphosphate, thiourea, urea, dibasic ammonium phosphate, and / or potassium nitrate containing these elements and having excellent compatibility with water-soluble resins. By mixing, a colored fertilizer for plants containing a fertilizer component can be prepared.

Preferably, a fertilizer is prepared by dissolving one selected from the group consisting of sodium pyrophosphate, sodium hexametaphosphate, and ammonium diphosphate, one selected from the group consisting of thiourea and urea, and potassium nitrate. Plant fertilizers containing ingredients can be prepared.

Particularly preferably, a colored fertilizer for plants containing a fertilizer component can be prepared by mixing urea, dibasic ammonium phosphate, and potassium nitrate. Since these are particularly excellent in compatibility with the ink composition, they can be conveniently used in the present invention.

As the organic pigment used in the present invention, there is typically a single pigment that develops green color, a mixture of blue and yellow, or a combination of blue, yellow, and green.

In the present invention, the pigment is not limited in structure as long as it exhibits these hues, and may be any of a magenta pigment, a yellow pigment, and a cyan pigment. Examples of the organic pigment include perylene compound pigment, perinone compound pigment, quinacridone compound pigment, quinacridone quinone compound pigment, anthraquinone compound pigment, anthanthrone compound pigment, benzimidazolone compound pigment, disazo condensation compound pigment, disazo compound pigment, azo compound pigment , Indanthrone compound pigment, indanthrene compound pigment, quinophthalone compound pigment, quinoxalinedione compound pigment, metal complex azo compound pigment, phthalocyanine compound pigment, triarylcarbonium compound pigment, dioxazine compound pigment, aminoanthraquinone compound pigment, diketopyrrolo Pyrrole compound pigment, naphthol AS compound pigment, thioindigo compound pigment, isoindoline compound pigment, isoindolinone compound pigment, pyranthrone compound face Magenta pigments isoviolanthrone compound pigment, or a mixture thereof, a yellow pigment or a cyan pigment, and the like. The amount of the organic pigment used is not particularly defined, but in the finally obtained colored fertilizer for plants, the solid content is preferably usually 1 to 25% by weight, and more preferably 2 to 15% by weight. It is preferable.

The aqueous medium for dispersing the organic pigment is preferably water, and particularly preferably ion-exchanged water. The aqueous medium is contained in a proportion of 50% by weight or more, preferably 60% by weight or more, more preferably 70% by weight or more of the colored fertilizer for plants. If necessary, a water-soluble resin or a water-soluble organic solvent compatible with water can be added.

As the water-soluble resin, various resins such as a natural resin and a synthetic resin can be used. For example, natural resins include glue, gelatin, shellac resin, and synthetic resins include styrene resin, acrylic resin, polyester resin, polyurethane resin, polyvinyl alcohol, polyvinyl pyrrolidone, and cellulose resin. In the present invention, an acrylic copolymer is particularly preferably used, but is not limited thereto. In the present invention, when used, the content of the water-soluble resin in the ink is not particularly limited, but is preferably in the range of 1 to 20% by weight. Furthermore, 1.5 to 5% by weight is more preferable.

Examples of the water-soluble organic solvent include alkylene glycols such as ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, polyethylene glycol, and polypropylene glycol, polyhydric alcohols such as glycerin, and alkylene glycol alkyl ethers thereof. It is done. The amount of the water-soluble organic solvent to be used varies depending on the type, but usually when used, the whole colored fertilizer for plants is preferably 1% by weight to 10% by weight, more preferably 2% by weight to 5%. It is appropriately selected from wt%.

You may add a pH adjuster, antiseptic | preservative, surfactant, etc. to the coloring fertilizer for plants of this invention as needed.

When used, the preservative is preferably at least one compound selected from the group consisting of alkylisothiazolones, chloroalkylisothiazolones, benzisothiazolones, bromonitroalcohols, oxazolidine compounds, and chlorxylenol.

As the surfactant, an anionic, nonionic, cationic, or amphoteric surfactant can be used as appropriate.

Anionic activators include fatty acid salts, alkyl sulfate esters, alkyl aryl sulfonates, alkyl naphthalene sulfonates, dialkyl sulfonates, dialkyl sulfosuccinates, alkyl diaryl ether disulfonates, alkyl phosphates, polyphosphates Examples include oxyethylene alkyl ether sulfate, polyoxyethylene alkyl aryl ether sulfate, naphthalenesulfonic acid formalin condensate, polyoxyethylene alkyl phosphate ester salt, glycerol borate fatty acid ester, polyoxyethylene glycerol fatty acid ester, etc. .

Nonionic activators include polyoxyethylene alkyl ether, polyoxyethylene alkyl aryl ether, polyoxyethylene oxypropylene block copolymer, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol fatty acid ester, glycerin fatty acid ester And nonionic active agents such as polyoxyethylene fatty acid ester, polyoxyethylene alkylamine, fluorine-based and silicon-based are exemplified.

Examples of the cationic activator include alkylamine salts, quaternary ammonium salts, alkylpyridinium salts, alkylimidazolium salts and the like.

Examples of amphoteric activators include alkyl betaines, alkyl amine oxides, phosphadyl cholines and the like.

Although the preparation method of such a coloring fertilizer for plants is not specifically limited, For example, an organic pigment is mixed with an aqueous medium. At this time, a water-soluble resin or a water-soluble organic solvent may be mixed depending on circumstances. This is dispersed, for example, with glass beads in a sand mill for several hours to obtain an ink composition containing an organic pigment.

Separately, an aqueous solution containing at least one selected from the group consisting of nitrogen, phosphorus, and potassium is mixed well to prepare an aqueous solution of fertilizer components.

Next, the prepared fertilizer component aqueous solution is mixed with the ink composition containing the organic pigment while stirring to prepare the colored fertilizer for plants of the present invention.

The order of component addition during the preparation is not particularly limited, and other methods may be used, but an aqueous solution of fertilizer components may be used to reduce aggregation between the positive charge of the fertilizer and the negative charge of the ink and prevent aggregation. Are mixed with an ink composition containing an organic pigment while stirring.

  Since the colored fertilizer for plants of the present invention has good dispersibility and does not have to worry about scattering such as powder, it can be widely used for golf courses and general household gardens that require coloring and fertilization.

  EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples. In addition, all the parts and% in each example are based on weight.

Example 1
Blue organic pigment dispersion aqueous solution (PSM Blue HB, manufactured by Gokoku Color Co., Ltd.) 1.0 part by weight, Yellow organic pigment dispersion aqueous solution (PSM Yellow GL, manufactured by Gokoku Color Co., Ltd.) 17.0 parts by weight, Green organic pigment dispersion aqueous solution (PSM green) FB, produced by Mikuni Dye Co., Ltd.) 2.0 parts by weight, 9.0 parts by weight of methyl methacrylate-butyl acrylate-acrylonitrile copolymer, 5.0 parts by weight of diethylene glycol, preservative (manufactured by Sumika Enviro Science Co., Neosynthol) 5087) 0.2 parts by weight and 63.2 parts by weight of water are mixed and circulated and dispersed (20 times of circulation) with glass beads (diameter = 1.0 mm) in a bead mill (manufactured by Willy AB Co., Ltd.). An ink composition containing an organic pigment was obtained.

Separately, it was dissolved in 0.4 parts by weight of urea, 0.2 parts by weight of dibasic ammonium phosphate, 0.5 parts by weight of potassium nitrate, and 10.0 parts by weight of water to prepare an aqueous solution containing a fertilizer component.

An aqueous solution containing a fertilizer component was mixed with the ink composition prepared at a ratio of 88.9: 11.1, and finally, 20 wt% of the organic pigment dispersion aqueous solution (4% as the solid content of the organic pigment). %), Methyl methacrylate-butyl acrylate-acrylonitrile copolymer 9.10% by weight, diethylene glycol 5.00% by weight, polyoxyethylene tridecyl ether 1.5% by weight, preservative 0.15% by weight, water 63 A colored fertilizer for plants was prepared to be 0.15 wt%, urea 0.40%, dibasic ammonium phosphate 0.20 wt%, and potassium nitrate 0.50 wt%.

(Example 2)
Blue organic pigment dispersion aqueous solution (PSM Blue HB, manufactured by Gokoku Color Co., Ltd.) 1.0 part by weight, Yellow organic pigment dispersion aqueous solution (PSM Yellow GL, manufactured by Gokoku Color Co., Ltd.) 17.0 parts by weight, Green organic pigment dispersion aqueous solution (PSM green) FB, produced by Mikuni Dye Co., Ltd.) 2.0 parts by weight, 9.0 parts by weight of methyl methacrylate-butyl acrylate-acrylonitrile copolymer, 5.0 parts by weight of diethylene glycol, preservative (manufactured by Sumika Enviro Science Co., Neosynthol) 5087) 0.2 parts by weight and 54.7 parts by weight of water were mixed and stirred with a propeller stirrer for 1 hour to obtain an ink composition containing an organic pigment.

Separately, it was dissolved in 0.4 parts by weight of urea, 0.2 parts by weight of dibasic ammonium phosphate, 0.5 parts by weight of potassium nitrate, and 10.0 parts by weight of water to prepare an aqueous solution containing a fertilizer component.

An aqueous solution containing a fertilizer component was mixed with the ink composition prepared at a ratio of 88.9: 11.1, and finally, 20 wt% of the organic pigment dispersion aqueous solution (4% as the solid content of the organic pigment). %), Methyl methacrylate-butyl acrylate-acrylonitrile copolymer 9.10% by weight, diethylene glycol 5.00% by weight, polyoxyethylene tridecyl ether 1.5% by weight, preservative 0.15% by weight, water 63 A colored fertilizer for plants was prepared to be 0.15 wt%, urea 0.40%, dibasic ammonium phosphate 0.20 wt%, and potassium nitrate 0.50 wt%.

According to detailed component analysis, the composition shown in Table 1 is obtained. In this analysis, the final fertilizer components were measured by the fertilizer analysis method (Ministry of Agriculture, Forestry and Fisheries, National Institute of Agricultural Environment Technology (1992 version)).

(Example 3)
In order to investigate the compatibility between the fertilizer components often used in addition to the fertilizer components used in Examples 1 and 2 and the ink composition, the following experiment was conducted.

  Blue organic pigment dispersion (PSM Blue HB, produced by Gokoku Color Co., Ltd.) 1.0 part by weight, yellow organic pigment dispersion (PSM Yellow GL, produced by Gokoku Color Co., Ltd.) 17.0 parts by weight, green organic pigment dispersion (PSM green) FB, produced by Mikuni Dye Co., Ltd.) 2.0 parts by weight, 9.0 parts by weight of methyl methacrylate-butyl acrylate-acrylonitrile copolymer, 5.0 parts by weight of diethylene glycol, preservative (manufactured by Sumika Enviro Science Co., Neosynthol) 5087) 0.2 parts by weight and 66.3 parts by weight of water were mixed and stirred for 1 hour in an emulsifying dispersion mixer to obtain an ink composition containing an organic pigment.

  To this solution, 0.5 parts by weight of each of the fertilizer components sodium pyrophosphate, sodium hexametaphosphate and thiourea were added. As a result, sodium pyrophosphate, sodium hexametaphosphate, and thiourea alone were mixed with the ink composition, and almost no precipitate was formed.

(Evaluation of coloring effect)
The coloring effect of the colored fertilizer for plants obtained in Example 1 was evaluated. The obtained colored fertilizer for plants was diluted 25 times and sprayed once on a Korean turf at a spraying amount of 250 ml / m ³ , and the colored state was observed. As a result, immediately after that, the color of the lawn was clearly changed to bright green compared to the case where the colored fertilizer was not sprayed (FIG. 1).

(Evaluation of fertilization effect)
The fertilizing effect of the colored fertilizer for plants obtained in Example 1 was evaluated. The obtained colored fertilizer for plants was diluted 25 times and sprayed once at a spraying amount of 250 ml / m ³ , and the coloring state and growth were observed every 7 days. As a result, the color and growth of the lawn were clearly superior compared to the case where the colored fertilizer was not sprayed immediately after spraying.

(Evaluation of fertilization effect)
The fertilizing effect of the colored fertilizer for plants obtained in Example 1 was evaluated. The obtained colored fertilizer for plants was diluted 25-fold, sprayed once a day on lawn sections of Hime Koryo and Koryo at a spraying amount of 250 ml / m ³ , and the weight of the roots after two weeks was measured. The measurement was performed by a drilling test measurement method. That is, using a hole cutter for a bulb of φ55 × 110, the lawn at the place where the greenness was the highest was visually dug. The soil of the lawn with soil dug down was washed away with tap water and drained. The roots and rhizomes were cut and the fresh weight was measured. Then, it was dried at 50 ° C. for 3 days, and its dry weight was measured. The results are shown in Table 2.

Compared to the case where no colored fertilizer was applied, lawn growth was clearly superior on a root weight basis.

Claims (7)

A colored fertilizer for plants containing at least one fertilizer component selected from the group consisting of nitrogen, phosphorus, and potassium, an organic pigment, and a water-soluble resin, and having a water content of 60% by weight or more. The ratio of the fertilizer component to the whole plant colored fertilizer is 0.1 to 1.0% by weight as the total amount of nitrogen, 0.05 to 0.5% by weight as water-soluble phosphoric acid, and 0.05 to 0.5 as water-soluble potassium. The colored fertilizer for plants according to claim 1, which is 0.5% by weight. The water-soluble resin is at least one selected from the group consisting of glue, gelatin, shellac resin, styrene resin, acrylic resin, polyester resin, polyurethane resin, polyvinyl alcohol, polyvinyl pyrrolidone, and cellulose resin. The colored fertilizer for plants according to claim 1 or 2. The plant coloring according to any one of claims 1 to 3, further comprising one or more water-soluble organic solvents selected from the group consisting of glycerin, alkylene glycol, and alkylene glycol alkyl ethers. fertilizer. The fertilizer component is obtained by dissolving at least one compound selected from the group consisting of sodium pyrophosphate, sodium hexametaphosphate, thiourea, urea, dibasic ammonium phosphate, and potassium nitrate. The colored fertilizer for plants according to any one of 4 to 4. The fertilizer component dissolves one type selected from the group consisting of sodium pyrophosphate, sodium hexametaphosphate, and dibasic ammonium phosphate, one type selected from the group consisting of thiourea and urea, and potassium nitrate. The colored fertilizer for plants according to any one of claims 1 to 5, which is obtained. The colored fertilizer for plants according to any one of claims 1 to 6, wherein the fertilizer component is obtained by dissolving urea, dibasic ammonium phosphate, and potassium nitrate.