What are the benefits of secondary dilution of pesticides? A detailed explanation of the correct method
Pesticides are a type of weed-killing and disinfecting product needed when carrying out planting and production. When using pesticides, the secondary dilution of pesticides is also very familiar to many farmer friends. Basically, most pesticides need secondary dilution, and secondary dilution of pesticides is now also strongly encouraged. So what are the benefits of secondary dilution of pesticides? And how should it be done? Now let's take a look together with the editor at the benefits and methods of secondary dilution of pesticides!
I. Benefits of dilution
1. Ensuring pesticides are evenly dispersed
When using pesticides, if they are some wettable powders or granules and are put directly into the water tank for one-time mixing without dilution, then this kind of pesticide will form clumped particles and sink directly to the bottom. Once it sinks to the bottom, stirring it is not very convenient. Therefore, without secondary dilution, the pesticide will not be evenly stirred, causing the liquid to not fully disperse. This results in uneven concentration of the liquid and makes it impossible to ensure even spraying. Therefore, secondary dilution of pesticides can effectively disperse them and ensure even spraying.
2. Ensuring accurate application
In recent years, the pace of our agricultural development has been very fast. It has also greatly reduced the amount of pesticide used. Under normal circumstances, the pesticide dosage for one mu of land only needs about ten-odd grams, and sometimes even less. Therefore, the amount in each sprayer will also be less, and at this time, carrying out secondary dilution can better ensure accurate application. For example, the commonly used XXX herbicide is generally used at about 8g per mu. After mixing with water, each bucket basically contains only two grams. If it is mixed in one step, it is impossible to ensure accurate weighing, and it also cannot be diluted evenly.
3. Reducing the risk of poisoning
No matter what kind of pesticide it is, it has relatively strong toxicity. Proper secondary dilution can reduce the possibility of contact with the original pesticide as much as possible. Especially for some pesticides with very strong toxicity, if diluted in one step, the chances of contact with the original pesticide can be as many as four times or more. But if diluted twice, then basically there is only one time. Therefore, it can greatly reduce the risk of pesticide poisoning, and the pesticide contacted later is already the prepared mother liquid, so the probability of poisoning is also very small.
II. Dilution method
First, we need to choose a medical saline bottle with graduations or some small containers. Then put the pesticide into the container, inject an appropriate proportion of water to prepare the mother liquid. Then, if there is a strong suspending agent, promptly clean off the pesticide adhering to the packaging. Then stir the pesticide to dissolve it in the water. Then carry out secondary dilution according to the spraying method. If it is backpack spraying, then directly pour it into the spray tank to carry out secondary dilution. First add an appropriate amount of water to the spray tank, then add the liquid and shake well, then add an appropriate amount of water to mix it evenly. If it needs to be used over a large area, then use a large container for the first dilution, and then carry out secondary dilution in the spray tank.
The above is a brief introduction to the benefits and methods of secondary dilution of pesticides. When preparing the mother liquid, be careful to strictly control the amount of water and the amount of pesticide liquid, ensure the quality of dilution, and avoid affecting and reducing the control effect. That is all for today's introduction. Thank you everyone for reading and supporting.