Pesticides can be divided into three categories: acidic, neutral and alkaline: When used in combination, neutral pesticides, acidic pesticides or neutral pesticides and acidic pesticides do not produce chemical and physical changes, so they can be mixed. However, most organophosphorus pesticides and carbaryl cannot be mixed with alkaline pesticides such as lime sulfur mixture and Bordeaux mixture, and cannot be mixed with alkaline substances such as lime, soap and washing powder. Some pesticides decompose under alkaline conditions, but they are slow to decompose and can be mixed with alkaline substances, but they must be used with them. Otherwise, precipitation will occur, and the protective film will not form on the plant body, which will not achieve the control effect. In general, pesticides having a pH of less than 7 are acidic and greater than 7 are alkaline. In daily life, most pesticides are acidic and neutral. In the mixed use of pesticides, alkaline pesticides often undergo chemical changes, resulting in reduced or ineffective effects. Therefore, attention should be paid to the acid-alkaline-sensitive agents to be properly mixed. And we often see such words in the pesticide description "cannot be mixed with alkaline pesticides", then what are the basic pesticides? Let's focus on alkaline pesticides. First, commonly used alkaline pesticides 1. Bole Multi-Liquid: It is a sky blue suspension made of copper sulfate, quicklime and water. It is a protective agent. 2. Rosin mixture (pinene mixture): It is a strong alkaline rosin soap made of rosin and caustic soda (sodium hydroxide) or alkaline surface (sodium carbonate). It has a strong contact effect on pests and xenon lamps. 3. Stone sulphur mixture (lime sulphur mixture): It is made by mixing lime, sulfur and water. Strongly alkaline. It has a killing and bactericidal effect. 4. Pentachlorophenol sodium: its aqueous solution is alkaline. It is a contact-killing herbicide. 2. Pesticides that are easily decomposed by alkali 1. Organophosphorus preparations: such as dichlorvos, trichlorfon, methamidophos, dimethoate, etc. 2. Organic nitrogen pesticides: Some organic nitrogen pesticides are unstable, such as carbofuran and spider mites. 3. Pyrethroid insecticides: such as enemy killing, pyrethroids, etc. 4. Acaricide : such as dicofol. 5. Fungicides: Some fungicides are unstable in alkali, such as: rice bran, tobuzin, dikesong and so on. At present, pesticides commonly used to control crop pests and diseases are generally not mixed with alkaline pesticides, but they can basically be mixed. (Source: cash cow agriculture)
With the development of food culture, from simple cooking tools, gradually evolved into both use and artistic value of household articles.The classification and function of Kitchen Knives are more and more detailed, from the era of a Kitchen Knife fighting the world, developed into today's special combination of knives.We can provide customers all over the world with the best quality and maching utility knives,also we can customize different utility knives according to the living habits of different countries.
Utility Knife Kitchen,Rustic Utility Knives,Kitchen Table Knives Set,Utility Knife HONG TAO KITCHEN INDUSTRY CO.,LTD , https://www.htkitchenware.com