阅读说明：本技术 一种具有缓释功能的土壤杀虫剂及其制备方法 (Soil pesticide with slow release function and preparation method thereof ) 是由 朱振华 于 2019-10-10 设计创作，主要内容包括：本发明公开了一种具有缓释功能的土壤杀虫剂,包括以下成分：干姜、艾蒿、藿香、槟榔、甘草、宽筋藤、樟脑、硅藻土粉、乳化剂、分散剂、消泡剂、乙醇和去离子水。该土壤杀虫剂以中药成分为杀虫剂的有效成分,对人畜基本无毒副作用,杀虫和抗菌效果好；本发明加入了硅藻土粉可以显著提升缓释效果；为了增强杀虫效果,本发明还加入了宽筋藤；本发明的杀虫剂,可以彻底消灭土壤中的有害菌虫,药效持续期长,安全性高。(The invention discloses a soil pesticide with a slow release function, which comprises the following components: rhizoma Zingiberis, folium Artemisiae Argyi, herba Agastaches, Arecae semen, Glycyrrhrizae radix, caulis tinosporae sinensis, Camphora, diatomaceous earth powder, emulsifier, dispersant, defoamer, ethanol and deionized water. The soil pesticide takes traditional Chinese medicine components as effective components of the pesticide, basically has no toxic or side effect on human and livestock, and has good insecticidal and antibacterial effects; the diatomite powder is added, so that the slow release effect can be obviously improved; in order to enhance the insecticidal effect, the invention also adds the tinospora sinensis; the pesticide of the invention can thoroughly eliminate harmful bacteria and insects in soil, and has long pesticide effect duration and high safety.)

1. A soil pesticide with a slow release function is characterized by comprising the following components: rhizoma Zingiberis, folium Artemisiae Argyi, herba Agastaches, Arecae semen, Glycyrrhrizae radix, caulis tinosporae sinensis, Camphora, diatomaceous earth powder, emulsifier, dispersant, defoamer, ethanol and deionized water.

2. The soil pesticide with slow release function as claimed in claim 1, which is composed of the following components in percentage by weight: 0.5-2% of dried ginger, 1-3% of mugwort, 0.2-0.5% of wrinkled gianthyssop herb, 0.3-0.8% of betel nut, 2-5% of liquorice, 1-3% of tinospora sinensis, 0.2-0.5% of camphor, 5-10% of diatomite powder, 1-3% of emulsifier, 1-2% of dispersant, 0.3-0.6% of defoaming agent, 15-20% of ethanol and the balance of deionized water.

3. The soil pesticide having a slow-release function as claimed in claim 1 or 2, wherein the particle size of the diatomaceous earth powder is 325 mesh.

4. The soil pesticide having a slow-release function as claimed in claim 1 or 2, wherein the emulsifier is a mixture of alkylphenol ethoxylate and sodium dodecylbenzenesulfonate.

5. The soil pesticide having a slow-release function as claimed in claim 1 or 2, wherein the dispersant is a lignin-based dispersant having a high carboxyl content and a high molecular weight.

6. The soil pesticide having a slow-release function as claimed in claim 1 or 2, wherein the defoaming agent is a silicone type defoaming agent.

7. A preparation method of a soil pesticide with a slow release function is characterized by comprising the following steps:

A. pulverizing Zingiberis rhizoma, Arecae semen, and Camphora, grinding, sieving with 80 mesh sieve, soaking in ethanol for 8-15 days while stirring every other day, and filtering to obtain soaking solution;

B. drying and crushing the artemisia argyi, the agastache rugosus, the liquorice and the tinospora sinensis, mixing, adding an ethanol solution with the mass concentration of 70-80% according to the material-liquid ratio of 1 (8-15), extracting for 1.2-2h at the extraction temperature of 75-80 ℃, then filtering, extracting the filter residue once again by using an ethanol solution with the mass concentration of 35-42% under the same condition, filtering, combining the two filtrates, concentrating and spray-drying to obtain mixed Chinese medicine powder;

C. adding an emulsifier, a dispersant and 50% of deionized water into the soaking solution, stirring uniformly, adding the mixed traditional Chinese medicine powder and the diatomite powder, and performing shearing emulsification by using a shearing emulsifying machine to obtain a mixed solution;

D. and adding the rest deionized water and the defoaming agent, and uniformly stirring.

Technical Field

The invention relates to the technical field of pesticides, in particular to a soil pesticide with a slow release function and a preparation method thereof.

Background

The sterilization and deinsectization are necessary work in the agricultural cultivation process, the sterilization and deinsectization are beneficial to killing bacteria and pests in soil, reducing the plant diseases and insect pests of crops and maintaining the growth environment of the crops, at present, most of rural vegetables and fruits are planted with a film or planted in a greenhouse instead, greenhouse vegetables become mainstream products in the market, the film or greenhouse is used for planting, the warm environment can enable the bacteria and pests in the soil to rapidly propagate and grow, in order to kill harmful bacteria and pests in the soil, people adopt chemical pesticides, radiation and baking to carry out insecticidal treatment on the soil before the crops are planted, and as the pesticides are easy to volatilize, a part of the spraying process is emitted, so that the pesticides cannot be fully utilized, and the volatilization process can hurt workers; most of chemical pesticides contain harmful substances which are left in vegetables after growing and seriously harm human health and the growth of livestock, and the survival capability of some pests, particularly root-knot nematodes, is very strong, so that the bacteria and the pests can be killed only by increasing the using amount of the chemical pesticides, thereby forming a vicious circle and causing serious environmental pollution such as soil, water source and the like; radiation disinfection is adopted, and rays with extremely strong penetrating power and energy, such as gamma rays of cobalt 60, are used for sterilization and disinfection, so that the method has higher cost and great difficulty in use for general planting farmers; although the methods such as baking are environment-friendly, the heat dissipation after baking is fast, the treatment efficiency is low, the method is only suitable for treating a small amount of soil, such as nutrient soil treatment in the field of flower cultivation, and the like, but not suitable for direct soil treatment in large-area cultivated land, the baking can destroy the nutrient structure of the soil, and after insect killing and sterilization, the nutrient components required by crops need to be added again to ensure the normal growth of the crops.

The Chinese invention patent CN105284955A discloses a soil pesticide and a use method thereof, wherein the soil pesticide is prepared from the following raw materials in parts by weight: 8-15 parts of sulfur, 6-10 parts of coptis chinensis, 3-8 parts of muskroot-like semiaquilegia root, 5-10 parts of radix stemonae, 8-12 parts of carpesium, 6-10 parts of fructus forsythiae, 5-10 parts of radix sileris, 5-8 parts of ginkgo biloba seed coat, 50-150 parts of solvent, 3-8 parts of emulsifier, 0.1-0.4 part of thickener, 3-5 parts of reinforcing agent, 0.1-1 part of defoamer and 25-40 parts of deionized water. The soil pesticide has mild drug property, basically has no toxic or side effect on human and livestock, and has good insecticidal and antibacterial effects, but when the soil pesticide is used, a special insecticidal device is required to be adopted and heated to the temperature of 135-. Therefore, there is a need to develop an environment-friendly soil pesticide which can achieve durable insecticidal and antibacterial effects by adopting a conventional spraying mode.

Disclosure of Invention

Based on the technical problems in the background art, the invention provides a soil pesticide with a slow release function and a preparation method thereof.

The technical scheme of the invention is as follows:

a soil pesticide with a slow release function comprises the following components: rhizoma Zingiberis, folium Artemisiae Argyi, herba Agastaches, Arecae semen, Glycyrrhrizae radix, caulis tinosporae sinensis, Camphora, diatomaceous earth powder, emulsifier, dispersant, defoamer, ethanol and deionized water.

Preferably, the soil pesticide with the slow release function consists of the following components in percentage by weight: 0.5-2% of dried ginger, 1-3% of mugwort, 0.2-0.5% of wrinkled gianthyssop herb, 0.3-0.8% of betel nut, 2-5% of liquorice, 1-3% of tinospora sinensis, 0.2-0.5% of camphor, 5-10% of diatomite powder, 1-3% of emulsifier, 1-2% of dispersant, 0.3-0.6% of defoaming agent, 15-20% of ethanol and the balance of deionized water.

Caulis tinosporae sinensis, named as traditional Chinese medicine. Is Tinospora sinensis (Lour.) Merr of Tinospora sinensis (Menispora sinensis) of Tinospora of Menispermaceae. Collected all the year round, washed, chopped and dried in the sun. The caulis tinosporae sinensis is mainly used for treating rheumatalgia, sciatica, lumbar muscle strain and traumatic injury. The use of tinospora sinensis for pesticides has not been reported.

Preferably, the particle size of the diatomite powder is 325 meshes.

Preferably, the emulsifier is a mixture of alkylphenol polyoxyethylene and sodium dodecyl benzene sulfonate.

Preferably, the dispersant is a lignin-based dispersant having a high carboxyl content and a high molecular weight.

Preferably, the defoaming agent is a silicone defoaming agent.

A preparation method of a soil pesticide with a slow release function comprises the following steps:

A. pulverizing Zingiberis rhizoma, Arecae semen, and Camphora, grinding, sieving with 80 mesh sieve, soaking in ethanol for 8-15 days while stirring every other day, and filtering to obtain soaking solution;

B. drying and crushing the artemisia argyi, the agastache rugosus, the liquorice and the tinospora sinensis, mixing, adding an ethanol solution with the mass concentration of 70-80% according to the material-liquid ratio of 1 (8-15), extracting for 1.2-2h at the extraction temperature of 75-80 ℃, then filtering, extracting the filter residue once again by using an ethanol solution with the mass concentration of 35-42% under the same condition, filtering, combining the two filtrates, concentrating and spray-drying to obtain mixed Chinese medicine powder;

C. adding an emulsifier, a dispersant and 50% of deionized water into the soaking solution, stirring uniformly, adding the mixed traditional Chinese medicine powder and the diatomite powder, and performing shearing emulsification by using a shearing emulsifying machine to obtain a mixed solution;

D. and adding the rest deionized water and the defoaming agent, and uniformly stirring.

The invention has the advantages that: the soil pesticide with the slow release function comprises the following components: rhizoma Zingiberis, folium Artemisiae Argyi, herba Agastaches, Arecae semen, Glycyrrhrizae radix, caulis tinosporae sinensis, Camphora, diatomaceous earth powder, emulsifier, dispersant, defoamer, ethanol and deionized water. The soil pesticide takes traditional Chinese medicine components as effective components of the pesticide, basically has no toxic or side effect on human and livestock, and has good insecticidal and antibacterial effects; the diatomite powder is added, so that the slow release effect can be obviously improved; in order to enhance the insecticidal effect, the invention also adds the tinospora sinensis; the pesticide of the invention can thoroughly eliminate harmful bacteria and insects in soil, and has long pesticide effect duration and high safety.

Detailed Description