KR100510816B1 - Manufacturing method of germicidal Bordeaux mixture - Google Patents

Abstract

The present invention relates to a method for producing a bactericidal lime bordea solution containing zinc lime, in which 15 to 25 parts by weight of calcium hydroxide, 15 to 25 parts by weight of copper sulfate and 2.25 to 3.75 parts by weight of zinc sulfate are sequentially added to 100 parts by weight of water. After the reaction at 60 to 80 ℃ for 3 hours or more, the zinc sulfate is a method for producing a bactericidal lime bordea solution containing zinc lime prepared by adding 1: 0.15 weight ratio to copper sulfate, the total composition prepared above Provided is a method for producing a bactericidal lime bordea solution containing zinc lime, characterized in that 0.5 to 5 parts by weight of stabilizer and 0.2 to 2 parts by weight of thickener are included per 100 parts by weight.

Description

Manufacturing method of lime bordeaux liquid having a bactericidal effect containing zinc lime {Manufacturing method of germicidal Bordeaux mixture}

The present invention relates to a method for producing a bactericidal lime bordeaux liquid containing zinc lime, more specifically, excellent sterilization power and excellent stability when applied to crops or fruit cultivation can obtain a continuous disease prevention effect without fear of harm It relates to a method for producing a lime bordeaux solution having a bactericidal composition containing zinc lime.

In general, lime Bordeaux liquid is dried when foliar sprayed on the surface of the plant to form a thin film, wherein the copper component contained in lime Bordeaux liquid is gradually oxidized by contact with air or carbon dioxide or other factors emitted by the plant to generate copper salts. The produced copper salt shows strong bactericidal power.

Lime Bordeaux liquid having such characteristics is typically prepared by adding lime to calcium hydroxide to make lime oil, and then slowly adding copper sulfate solution thereto. At this time, a trace amount of urea fertilizer, a surfactant, a thickener, and the like required by the plant were further added to the solution to make lime bordeaux solution including the trace element.

However, lime Bordeaux solution prepared by the method described above is used by farmers as severe weakening occurs, such as falling leaves and spots depending on the type of crop as the excess copper salt is eluted and absorbed by the crop when foliar spray is applied to the crop. It is inconvenient to apply to only a limited number of crops. In addition, the particles are agglomerated in the process of producing a lime bordeaux solution by the manufacturing method there is a problem that the stability of the disease prevention effect is lowered.

 Accordingly, the present inventors studied lime bordeaux liquid which can prevent the harmful effects of crops caused by copper salt of lime bordeaux solution and at the same time have excellent bactericidal power and excellent stability even when sprayed in the process of growing crops. At the end, the present invention was completed.

Accordingly, the present invention provides a method for producing a lime bordeaux solution having a bactericidal bacterium containing zinc lime which can suppress the weakness of the crops generated when foliar spraying on the crop and at the same time have excellent sterilizing power and excellent stability. Its purpose is to.

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The present invention to achieve the above object

15 to 25 parts by weight of calcium hydroxide, 15 to 25 parts by weight of copper sulfate, and 2.25 to 3.75 parts by weight of zinc sulfate were sequentially added to 100 parts by weight of water, followed by reaction at 60 to 80 ° C. for 3 hours or more. In the method for producing a bactericidal lime bordeaux solution containing zinc lime prepared by adding 1: 0.15 weight ratio, so that 0.5 to 5 parts by weight of the stabilizer and 0.2 to 2 parts by weight of the thickener is included with respect to 100 parts by weight of the total composition prepared It provides a method for producing a lime Bordeaux liquid having a bactericidal property comprising zinc lime.

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Hereinafter, the present invention will be described in more detail.

In order to prepare a lime Bordeaux liquid having a bactericidal bacterium containing zinc lime, 15 to 25 parts by weight of calcium hydroxide, 15 to 25 parts by weight of copper sulfate, and 2.25 to 3.75 parts by weight of zinc sulfate are sequentially added to 100 parts by weight of water, followed by 60 It is made to react at -80 degreeC for 3 hours or more, and lime lime solution is manufactured.

As can be seen from the above, the present invention provides a lime bordo solution containing copper hydroxide, zinc hydroxide, and calcium sulfate in an appropriate ratio by sequentially reacting copper hydroxide and zinc sulfate at a suitable temperature, due to interactions when used in plants. It can be used stably in crops, and it is excellent for sterilization, but it can solve problems that farmers could not use due to the weakness of severe crops.

That is, in the present invention, zinc hydroxide produced by the reaction of calcium hydroxide and zinc sulfate by further adding zinc sulfate to suppress the weakening caused by the copper component in the process of preparing a conventional lime bordea solution (hereinafter referred to as "zinc lime") Its features are that it is included.

Looking at the process of preparing a lime bordeaux solution containing more specific zinc lime, first, water is added to the reaction vessel, the temperature is heated to 60 ℃, and then 15 to 25 parts by weight of calcium hydroxide and 0.5 to 2.0 parts by weight of dispersant are added to the water while stirring After preparing lime oil, 15-25 parts by weight of copper sulfate was added to water, and the dissolved copper sulfate solution was slowly added while reacting.

In this case, the calcium hydroxide may be a conventional one, and in the present invention, a high purity calcium hydroxide obtained by hydrating the quicklime obtained by digesting limestone with water to remove impurities may be used as a cake containing water as calcium hydroxide. .

In order to prepare a lime Bordeaux liquid using the calcium hydroxide described above, the dispersing agent is added together in the process of hydration. A liquid pale yellow compound having a concentration of 58.0 to 62.0% was used as the active ingredient.

In the present invention, copper sulfate (CuSO 4 · 5H 2 O) has a purity of 98.5% or more in which harmful heavy metals and impurities have been removed.

Since the reaction of copper sulfate and calcium hydroxide is an exothermic reaction, the temperature of the reaction vessel rises, and it is important to maintain the temperature of the reaction vessel at 60 to 80 ℃. This problem occurs when the reactant temperature falls below 60 ° C., which causes the particles of the reactant to become large and complete reaction does not occur. When the temperature of the reactant exceeds 80 ° C., some of the reactants become solid and unreacted substances are generated. Because it occurs.

In the above reaction, the amount of calcium hydroxide and copper sulfate added may be added within the range of normal lime boring liquid preparation. In the present invention, 15-25 parts by weight of calcium hydroxide and 15-25 parts by weight of copper sulfate are added to 100 parts by weight of water.

As described above, after the reaction of calcium hydroxide and copper sulfate, zinc sulfate solution prepared by dissolving 2.25 to 3.75 parts by weight of zinc sulfate in water is added thereto, and the reaction is terminated when the pH of the reactant reaches 12.7 ± 0.2.

When zinc sulfate is added as described above, zinc sulfate and calcium hydroxide react to form zinc lime, which is a basic copper sulfate lime (CuSO4, 7Cu (OH) 2, 6Ca (OH) 2) which is a main component of lime bordea solution. When the carbon component absorbs carbon dioxide in the air and the copper component is dissolved to about 40ppm, the sterilizing power reaches the highest, but when it exceeds 50ppm, the crop absorbs it and causes weakness. At this time, due to the antagonism of zinc lime plays a role in preventing the excessive absorption of copper components in the crop, so the weakening of the crop is suppressed.

Zinc sulfate is preferably added within the above-mentioned range, but particularly preferably, it is added in a weight ratio of 1: 0.15 to the copper sulfate to be added. The addition amount of zinc sulfate does not need to exceed 1: 0.15 weight ratio with respect to copper sulfate, but rather, there is a disadvantage that the sterilization power is reduced, and when the addition amount is less than 1: 0.15 weight ratio with respect to copper sulfate, there is a problem that the stability is weak and occurs. It is preferable to add zinc sulfate in the above ratio.

In this way, when zinc sulfate is further added, not only the weakening caused by the copper component is suppressed, but also the stability is enhanced, and the sterilizing effect is maintained for a long time. As the zinc sulfate (ZnSO 4 · 5H 2 O), it should have a purity of 98.5% or more free from harmful heavy metals and impurities, and should be less than the hazardous ingredient allowance determined by the pesticide or fertilizer control method.

In this case, according to the present invention, the water in the reaction vessel may have a total content of 100 parts by weight, but the total content of water does not necessarily need to be limited, and the content of water changes somewhat in consideration of the conditions of the reaction in the manufacturing process. You can.

When the lime Bordeaux solution is prepared under the above-described conditions and subjected to wet grinding in a conventional manner, the lime Bordeaux solution having a bactericidal power including zinc lime according to the present invention can be prepared. The prepared lime Bordeaux solution is not only excellent in stability and sterilization power, but also excellent in stability and can maintain long-lasting sterilization power, and can be used as a substitute for pesticides when growing crops such as vegetables or fruit trees.

In the process of preparing the lime bordeaux solution, if necessary, in order to increase stability and electrodeposition property, a stabilizer and a thickener used in the manufacture of conventional pesticides or fertilizers may be further added.

In the present invention, a mixture prepared by mixing anionic surfactant and nonionic surfactant 2: 1 as a stabilizer was used to contain 0.5 to 5 parts by weight based on 100 parts by weight of the total composition, and sodium disulfosuccinate as an anionic surfactant. (sodium disulfursuccinate) and a non-ionic surfactant is a combination of poly oxyethylene alkyl ether (PEA).

In addition, the present invention used a montmorillonite (montmorillonite) system as a thickener, the montmonillonite system has the effect of improving the usability and good foliar application in foliar fertilization, in the present invention, the thickener The amount of was used to include 0.2 to 2 parts by weight based on 100 parts by weight of the total composition.

As described above, in the conventional lime bordeaux solution, excessive copper salt is eluted to cause crop damage, but in the present invention, the zinc lime plays a buffer role so that the crop does not suffer from normal growth. Therefore, the lime Bordeaux solution according to the present invention can be used as a substitute for pesticides, fruit crops, special crops, etc., and can be used as an eco-friendly material that is harmless to human beings.

Hereinafter, the present invention will be described in more detail with reference to the following examples, which are only presented to aid the understanding of the present invention, but the present invention is not limited thereto.

<Example 1>

250Kg of water was added to the reaction vessel, and 100Kg of calcium hydroxide, 4Kg of dispersant, and 7.5Kg of surfactant were slowly added thereto under stirring at a temperature of 60 ° C, and stirred to a gel state. The mixture was slowly added to the mixture and stirred sufficiently while maintaining the reaction temperature at 65 ± 5 ° C., and then reacted by adding zinc sulfate solution in which 15 kg of zinc sulfate was dissolved in 40 kg of water. Lime Bordeaux liquid was prepared.

<Example 2>

A lime bordo solution was prepared in the same manner as in Example 1, except that zinc sulfate was not added.

<Example 3>

Lime Bordeaux liquid was prepared in the same manner as in Example 1, except that 7.5 Kg of zinc sulfate was used.

<Example 4>

Lime Bordeaux liquid was prepared in the same manner as in Example 1, except that 5 Kg of zinc sulfate was used.

Example 5

Lime Bordeaux liquid was prepared in the same manner as in Example 1, except that 20 Kg of zinc sulfate was used.

<Example 6>

Lime Bordeaux liquid was prepared in the same manner as in Example 1, except that 22.5 Kg of zinc sulfate was used.

Experimental Example 1

The pH of the lime Bordeaux solution prepared in Examples 1 to 6 was measured by pH-meter, and the concentrations of copper and zinc were measured using atomic absorption spectrometry, and the hydration was 5 g of a sample in a 500 ml cylinder. After shaking several times by the addition of and then left for about 5 minutes and analyzed by the method of irradiating the tube is shown in Table 1 the results.

As shown in Table 1, it can be seen that both physical properties of the product, such as hydration and pH, are good, and it can be seen that the reaction is stable as a main component.

Experimental Example 2

The lime Bordeaux solution prepared in Examples 1 to 6 was sprayed twice at three repeated 20-day intervals in contrast to the untreated spheres on the six-year-old peach tree, which is well-developed, and then the short-term investigation of the medicinal effects. Table 2 shows.

At this time, the investigation standard of the weak sea was 0 as compared to the untreated group and the percentage of deciduous leaves of the treated group was compared with the untreated group. When the amount was 100, the degree of the leaves in which bacterial pore disease and augal disease lesions were expressed in 100 parts.

As shown in Table 2, the lime Bordeaux liquid containing zinc lime of Example 1 prepared within the preferred range of the present invention can be confirmed that the efficacy and the weakness is very good compared to the untreated.

As described above, the present invention provides a method for producing a lime bordeaux solution having a bactericidal power, including zinc lime, so that it can be stably used for crops that are sensitive to lime bordeaux solution and cause weakening, and have a bactericidal power for fruit trees, flower special crops, etc. It is a useful invention for agricultural development because it can be used as an eco-friendly material that is excellent and harmless to human beings.

Claims (4)

delete delete 15 to 25 parts by weight of calcium hydroxide, 15 to 25 parts by weight of copper sulfate, and 2.25 to 3.75 parts by weight of zinc sulfate were sequentially added to 100 parts by weight of water, followed by reaction at 60 to 80 ° C. for 3 hours or more. In the method for producing a bactericidal lime bordea solution containing zinc lime prepared by adding 1: 0.15 weight ratio, Method of producing a lime bordeaux solution having a bactericidal lime comprising zinc lime characterized in that it comprises 0.5 to 5 parts by weight of stabilizer and 0.2 to 2 parts by weight of thickener based on 100 parts by weight of the total composition prepared. delete