Agricultural spray acidifier and preparation method thereof

Abstract

The invention discloses an agricultural spray acidifier and a preparation method thereof, and belongs to the technical field of water treatment.The agricultural spray acidifier is prepared from anhydrous phosphoric acid, an organic solvent, methyl red and a dispersing agent, the anhydrous phosphoric acid is added into absolute ethyl alcohol to be evenly stirred, then methyl red is added, stirring is conducted again, and the agricultural spray acidifier is obtained. After the acidifying agent is added into alkaline water, the pH value of the water can be reduced to 5.5, under the pH value, the efficacy of acidic pesticides and liquid fertilizers can be optimal, the acidifying agent has an indication effect, after the pH value reaches 5.5, the color of the water body becomes light pink, the water body can be directly observed through naked eyes, the acidified water body does not cause any influence on the growth of crops, and the acidifying agent has a good application prospect. The device is suitable for adjusting the pH value of dilution water for spray fertilization and pesticide application.

Description

Technical Field

[0001] The invention relates to an acidifier and a preparation method thereof, in particular to an agricultural spray acidifier and a preparation method thereof, and belongs to the technical field of water treatment. Background Art

[0002] The high alkalinity of underground well water (too high pH value) is a common water quality problem that directly affects people's lives and agricultural production. The reason is that the weak acid formed by the weak salts contained in the underground rocks is not easy to ionize, and a large amount of hydroxide ions are released.

[0003] Most plants, including vegetables, prefer to grow in a slightly acidic to neutral soil environment. Excessively alkaline water will affect the growth status, quality, and yield of vegetables. Long-term watering with excessively alkaline water will cause the plants to gradually turn yellow and die. In addition, using alkaline groundwater to dilute acidic pesticides will also cause acid-base neutralization reactions, affecting the effectiveness of pesticide application.

[0004] In order to obtain healthy vegetables and abundant yields, groundwater used for agricultural irrigation is generally treated by adding pH regulators or filtering. However, the cost of installing water filters is high, and the pH regulators generally used in agriculture are sulfuric acid, hydrochloric acid, etc., which need to be added gradually. The operation is cumbersome and imprecise. There is a lack of monitoring of the pH adjustment end point. Too much or too little addition will affect the yield and quality of crops. Summary of the Invention

[0005] In view of this, the present invention provides an agricultural spray acidifier and a preparation method thereof to solve the above-mentioned problems existing in the prior art.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An agricultural spray acidifier comprises the following raw materials in parts by weight: 20-40 parts of anhydrous phosphoric acid, 40-60 parts of an organic solvent, and 0.3-1 part of methyl red.

[0008] On the basis of the above technical solution, the present invention has the following further solutions:

[0009] Furthermore, the organic solvent is anhydrous ethanol.

[0010] Furthermore, 15-35 parts of a dispersant is included.

[0011] Furthermore, the dispersant is nonylphenol polyoxyethylene ether.

[0012] The present invention also provides a method for preparing the above-mentioned agricultural spray acidifier, which comprises the following steps:

[0013] Anhydrous phosphoric acid is added to an organic solvent and stirred evenly, and then methyl red is added and stirred again to obtain the product.

[0014] Furthermore, the method further includes adding a dispersant to the organic solvent before adding anhydrous phosphoric acid to the organic solvent.

[0015] The beneficial effect of the present invention is that after adding the acidifier of the present invention to alkaline water, the pH value of the water can be reduced to 5.5. At this pH value, the effectiveness of acidic pesticides and liquid fertilizers can be optimized, and the acidifier has an indicator function. When the pH value reaches 5.5, the color of the water changes to light pink, which can be directly observed with the naked eye. The acidified water has no effect on the growth of crops, and is suitable for adjusting the pH value of dilution water for spray fertilization and pesticide application. DETAILED DESCRIPTION

[0016] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] Example 1

[0018] Agricultural spray acidifier, raw materials include: 20g anhydrous phosphoric acid, 60g anhydrous ethanol, 1g methyl red.

[0019] The product is obtained by adding anhydrous phosphoric acid to anhydrous ethanol and stirring evenly, and then adding methyl red and stirring again.

[0020] Example 2

[0021] Agricultural spray acidifier, the raw materials include: 40g anhydrous phosphoric acid, 40g anhydrous ethanol, 35g nonylphenol polyoxyethylene ether, and 0.3g methyl red.

[0022] The method comprises adding nonylphenol polyoxyethylene ether to anhydrous ethanol, adding anhydrous phosphoric acid to the anhydrous ethanol and stirring evenly, and then adding methyl red and stirring again to obtain the product.

[0023] Example 3

[0024] Agricultural spray acidifier, raw materials include: 30g anhydrous phosphoric acid, 50g anhydrous ethanol, 30g nonylphenol polyoxyethylene ether, and 1g methyl red.

[0025] The method comprises adding nonylphenol polyoxyethylene ether to anhydrous ethanol, adding anhydrous phosphoric acid to the anhydrous ethanol and stirring evenly, and then adding methyl red and stirring again to obtain the product.

[0026] Example 4

[0027] Agricultural spray acidifier, raw materials include: 30g anhydrous phosphoric acid, 40g anhydrous ethanol, 0.5g methyl red.

[0028] The product is obtained by adding anhydrous phosphoric acid to anhydrous ethanol and stirring evenly, and then adding methyl red and stirring again.

[0029] Example 5

[0030] Agricultural spray acidifier, the raw materials include: 35g anhydrous phosphoric acid, 55g anhydrous ethanol, 20g nonylphenol polyoxyethylene ether, and 0.8g methyl red.

[0031] The method comprises adding nonylphenol polyoxyethylene ether to anhydrous ethanol, adding anhydrous phosphoric acid to the anhydrous ethanol and stirring evenly, and then adding methyl red and stirring again to obtain the product.

Claims

1. An agricultural spray acidifier, characterized in that The method comprises the following raw materials in parts by weight: 20-40 parts of anhydrous phosphoric acid, 40-60 parts of an organic solvent, and 0.3-1 part of methyl red.

2. The agricultural spray acidifier according to claim 1, characterized in that The organic solvent is anhydrous ethanol.

3. The agricultural spray acidifier according to claim 1 or 2, characterized in that Also includes 15-35 parts of dispersant.

4. The agricultural spray acidifier according to claim 3, characterized in that The dispersant is nonylphenol polyoxyethylene ether.

5. A method for preparing an agricultural spray acidifier, characterized in that: Here are the steps: Anhydrous phosphoric acid is added to an organic solvent and stirred evenly, and then methyl red is added and stirred again to obtain the product.

6. The method for preparing the agricultural spray acidifier according to claim 5, characterized in that: The method further includes adding a dispersant to the organic solvent before adding anhydrous phosphoric acid to the organic solvent.