JP5859063B2 - Plant spray and method for producing the same - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a plant spraying agent to be sprayed on a plant leaf and the like, and a method for producing the same, and in particular, to control and control plant pests and to provide a plant spraying agent for supplying nutrients necessary for the plant Regarding the method.

  In recent years, the quality of plants and fruits has been improved, and various treatments have been applied to obtain high quality and high yield. For example, agricultural chemicals are sprayed to control and control pests (hereinafter referred to as Conventional Example 1).

  In addition, fruits such as apples and pears are covered with paper to protect the fruits from insect repellent and the environment and improve the color of the fruits (hereinafter, Conventional Example 2). Called).

  In addition, plants such as vegetables and fruits absorb nutrients from the roots and store sugar and starch by carbon dioxide assimilation. Until now, the necessary components were contained in the soil in which the plant was planted, and the necessary components were absorbed from the soil by recycling. On the other hand, even if organic fertilizer is used, due to continuous cropping for many years, the soil becomes deficient in nutrients, minerals are deficient, pathogens increase, and pests are generated. In such a situation, plants that are vulnerable to diseases are formed and vulnerable to pests, so pesticides must be used to control the pests.

  In recent soils, mineral components are scarce, vegetables and fruits are often poor in flavor and sweetness, and component supply by compost has been ineffective. In particular, house cultivation has increased, chemical fertilizers have been used, and mineral components are deficient with continuous cropping. If the mineral component is sufficient, it tastes good when you eat vegetables, and it is soft and delicious. However, if the mineral component is insufficient, it is hard and delicious.

  Therefore, conventionally, in order to replenish mineral components, a method has been proposed in which seawater is pumped up, diluted with water and sprayed on the leaf surface of the plant to replenish and absorb mineral components directly from the leaf surface. (Hereinafter referred to as Conventional Example 3).

  In addition, a product “Caligreen (registered trademark)” whose main component is heavy carbon potassium (potassium hydrogen carbonate) is manufactured by Toagosei Co., Ltd. Heavy carbon potassium exerts excellent control effects against plant pathogens such as powdery mildew, rust, and gray mold disease, and also has an effect of promoting active growth of plants by being absorbed by plants after exerting control effects (Hereinafter referred to as Conventional Example 4).

Further, Patent Document 1 contains a soluble cellulose ether or cellulose glycolic acid ether sodium salt, methylcellulose, polysaccharides such as maltose and glucose, and sodium citrate. Is disclosed (hereinafter referred to as Conventional Example 5).
JP-A-11-225590

  Conventional Example 1 has a problem that a pesticide for controlling and controlling pests contains components harmful to the human body and is strictly regulated by laws and the like. There is also a problem that it cannot be easily removed when necessary.

  In Conventional Example 2, the bagging work is very complicated because the farmer's workers carefully wrap the fruits one by one with paper and cover the base with a string. In particular, when the fruit of fruit grows, the bag itself is torn, so it must be repeated each time the fruit grows, and there is a problem that there is a large amount of labor that must be done for the work and it is very expensive. It was.

  In the prior art 3, the sprayed seawater is not easily absorbed from the leaves and flows away in the rain, so that there is a problem that the spraying work is required each time it rains and the production cost of the plant becomes high. Although it is based on the method of spraying a mineral component directly on soil and making it absorb from a root to a plant, the supplement from a root | root has the subject that it will be washed away by rain not only the effect is limited.

  In the conventional example 4, since it is inferior in adhesion and sustainability to the leaves of plants, even if it is sprayed on the leaves of plants, it will quickly flow down due to rain, increasing the number of spraying, and the plant production cost is high There is a problem of becoming. In addition, even if it exhibits an excellent effect at the experimental level, when used on plants that are actually grown in farmland or house cultivation, the absorption rate of nutrients to plants, the yield of plants, and sugar content are greatly increased. There was a problem that it could not be made.

  Conventional Example 5 does not use a copolymer of methyl acrylate and acrylic acid as in the present invention.

  The present invention has been made to solve the above problems, and can control and remove pests reliably and continuously, is not harmful to the human body, can be easily removed when necessary, and eliminates the need for bagging work. An object of the present invention is to provide a plant spray agent and a method for producing the same that can improve adhesion and persistence to plant leaves and the like, and the absorption rate of nutrients to plants.

  The present invention has a copolymer of methyl acrylate and acrylic acid, and is characterized by blending an emulsion having a degree of polymerization of 800-1000, a sorbitol fatty acid ester, and a mineral component. It is.

  The mineral component is preferably a powder obtained by drying deep underground water with heat.

  It is preferable that trisodium citrate is added to the mineral component.

The method for producing a plant spray according to the present invention comprises:
A step of making an emulsion having a copolymer of methyl acrylate and acrylic acid, each having a degree of polymerization of 800-1000;
Adding a sorbitol fatty acid ester and a mineral component to the emulsion;
It is characterized by having.

  The present invention has the following effects.

  (1) The emulsion having a copolymer of methyl acrylate and acrylic acid has a coating strength and excellent durability, does not dissolve in the rain, adheres to the leaf of the plant, wraps the cell membrane, Stretch with growth. In addition, sorbitol fatty acid ester can be prevented from being repelled when sprayed on the leaves of plants. By these actions, the body of the pest of the plant is enveloped, and the respiratory opening is blocked and suffocated, so that the pest can be controlled and removed reliably and continuously.

  (2) Since it is tasteless, odorless, harmless and colorless, there is no health impact on humans. That is, an emulsion having a copolymer of methyl acrylate and acrylic acid is harmless even if it is put into the human body because it is used as an enteric coating agent in the pharmaceutical field, and is also used as a food additive. Since it is harmless even if it is put into the human body and mineral components, it can provide a plant spray that is harmless to the human body and safe.

  (3) By applying the plant spraying agent of the present invention to the surface of plants such as pears, peaches, and grapes, the same effect as bagging can be obtained, so it can be accomplished with simple operations such as spraying. Thus, unlike the conventional case, it is not necessary to perform extremely complicated work of bagging one by one, and the labor amount can be significantly reduced.

  (4) When removing the coating on the surface of the plant, for example, by using weakly acidic acetic acid, it can be easily removed by dissolving in water.

  (5) In the case of using the deep underground water as a mineral component that has been dried by heat and powdered, 74 kinds of minerals such as sodium chloride, magnesium chloride, calcium chloride, potassium chloride are mixed, Since there are few impurities compared with the case where seawater is used, it is optimal as a supplement to plants, and the flavor of plants is also increased.

  (6) When trisodium citrate is added to the mineral component, the action of enlarging the foliage of the plant is added, and the carbon dioxide assimilation is promoted. It becomes even more delicious.

  Embodiments of the present invention will be described below.

  The plant spray according to the embodiment of the present invention has a copolymer of methyl acrylate and acrylic acid, each having an polymerization degree of 800-1000, a sorbitol fatty acid ester, a mineral component, Is characterized by being blended.

  The plant spray according to the embodiment of the present invention is manufactured as follows, for example.

  First, 20% of a mixture of methyl acrylate 700, acrylic acid 700, hydrogen peroxide 126, sodium sulfonate 14% 20, and water 2000 in a weight ratio was stirred at a temperature of 70-80 ° C. for 2 hours, and the remaining 80% is added over 3 hours, nitrogen gas is added to remove unreacted substances, and an emulsion of an emulsion copolymer is prepared.

  Next, 0.1-0.5% sorbitol fatty acid ester and 0.1-0.5% mineral component are added to the 30% emulsion to make a mixture.

  When spraying on plants, the mixture should be 33% and water 67%.

In the characteristics of the plant spray according to the embodiment of the present invention, the tensile strength was 40 MPa (MPa 10 .MPa. 2 kg / cm ² ).

In the plant spray according to the embodiment of the present invention, the emulsion having a copolymer of methyl acrylate and acrylic acid has a coating strength, is excellent in durability, does not dissolve in rain, leaves of plants, etc. It attaches to and wraps the cell membrane and stretches with the growth of leaves.

  In addition, sorbitol fatty acid ester can be prevented from being repelled when sprayed on the leaves of plants. By these actions, the body of the pest of the plant is enveloped, and the respiratory opening is blocked and suffocated, so that the pest can be controlled and removed reliably and continuously. For example, it is effective against large pests such as stink bugs and scarabs, and is also suitable for combating winged silver leaf whiteflies and thrips.

  The plant spray according to the embodiment of the present invention is tasteless, odorless, harmless, colorless and has no health effects on humans. That is, an emulsion having a copolymer of methyl acrylate and acrylic acid is also used as an enteric coating agent in the pharmaceutical field, and is harmless even when placed in the human body, and is also used as a food additive. Since fatty acid esters and mineral components are harmless even if they are put into the human body, it is possible to provide a plant spray that is harmless to the human body and safe.

  In addition, by spraying the plant spraying agent according to the embodiment of the present invention on the surface of plants such as pears, peaches, and grapes, the same effect as bagging can be obtained. It can be performed by work, and there is no need to perform the extremely complicated work of bagging one by one as in the prior art, and the labor load can be greatly reduced.

  Further, when it is desired to remove the coating on the surface of the plant, for example, if weakly acidic acetic acid is used, it can be easily removed by dissolving in water.

  As the mineral component, it is preferable to use a powder obtained by drying deep underground water for 10-15 minutes with heat at 250 ° C.-280 ° C. Deep underground water contains 74 kinds of minerals such as sodium chloride, magnesium chloride, calcium chloride, potassium chloride, and has less impurities than when seawater is used. The flavor of the plant also increases.

  Moreover, it is preferable that trisodium citrate is added to the mineral component. Addition of 3-5% trisodium citrate adds an effect of increasing the plant mouth of the plant and promotes carbon dioxide assimilation, increasing the amount of minerals absorbed and making the plant even more delicious .

  The present inventor has prepared a spray solution prepared by dissolving 33% of the plant spray agent according to the embodiment of the present invention in 25 times water and mixing it in a 10 tomato house with an amount of 120 l (liter). An experiment of spraying once every 10 days was conducted.

  The tomato was in a state in which silver leaf whitefly was generated, but 15-20 minutes after spraying, the silver leaf whitefly fell 100% down and suffocated and died.

  In addition, an experiment was conducted in which an amount of 2.2 (liter) was sprayed once every 20 days with a 2 m apple tree.

  Pests such as stink bugs, mites, chafers, scallops, and longhorn beetles occurred in apples, but these pests fell below 100% and were killed by suffocation.

  Furthermore, in the case of cherry tomatoes, the fruit breaks when it is ripe after harvesting and delivering it to the shipping place. As a result, 100% of actual cracks could be prevented.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical matters described in the claims.

  The plant spray and the method for producing the same according to the present invention are used for controlling and extinguishing plant pests and supplying nutrients necessary for plants.

Claims (4)

It has a copolymer of methyl acrylate and acrylic acid, which is also used as an enteric coating agent, and is composed of an emulsion having a degree of polymerization of 800-1000, a sorbitol fatty acid ester, and a mineral component. Plant spray characterized by   2. The plant spray according to claim 1, wherein the mineral component is powdered by drying deep underground water with heat.   The plant spray according to claim 1 or 2, wherein trisodium citrate is added to the mineral component. Having a copolymer of methyl acrylate and acrylic acid, which is also used as an enteric coating agent, and making an emulsion having a degree of polymerization of 800-1000,
Adding a sorbitol fatty acid ester and a mineral component to the emulsion;
A method for producing a plant spray, characterized by comprising: