After spraying pesticides on crops, the effect is not good. Why? One thing to note is that the effect is not very likely to be related to the quality of the pesticide. Do not use groundwater, tap water or well water directly for pesticides. Do you know why?
Many farmers' friends use water very freely before they use pesticides. Regardless of groundwater, tap water, well water, river water, and what kind of water is used when they encounter water, this is actually a wrong practice. The best water for diluting pesticides and the best pesticides is soft water. If hard water is used, the effect will be greatly reduced. For example, calcium and magnesium ions in hard water will reduce the suspension rate of wettable agents and emulsification in emulsion chemicals. The reaction of the substance forms a calcium-magnesium precipitate, which destroys the emulsification performance of the emulsifiable drug, and is not only easy to cause phytotoxicity to the crop, but also easily clogs the nozzle of the sprayer. So what is soft water? How to distinguish?
First, how do you distinguish between soft water and hard water?
The standard for distinguishing between soft water and hard water is the hardness of water, that is, the content of calcium oxide per 100,000 parts of water. For example, 100,000 parts of water contains 1 part of calcium oxide, then the hardness is 1. The hardness of soft water is generally around 7.5 degrees, and the hardness of hard water is generally around 18-20 degrees.
The so-called hard water refers to water containing more calcium and magnesium ions. More common groundwater, tap water, sea water, well water, salt water, etc.;
The so-called soft water refers to water that does not contain or contain less calcium and magnesium ions. The more common ones are rainwater, snow water, stream water, spring water, river water, lake water, etc.
Due to the different natural environments, the water quality in the north and south of China is also quite different. From the general position of the north and south regions, there are many soft waters in the south and more hard water in the north.
Second, two simple test methods for soft water and hard water
1. Look at the scale after boiling water: Boil the water in a beaker, and the hard water is left on the wall. The more scale, the more impurities are deposited, the harder the water is. The opposite is soft water;
2. Hot water and soap to see how much foam: Add soapy water to the hot water in the cup, then gently stir it. The more foam and scum appear on the water surface, the greater the hardness of the water, and vice versa.
Third, how to simply turn hard water into soft water?
For the average person, the simplest and most effective way to soften hard water is to directly boil the water to achieve a softening effect on the water.
There is also a relatively simple method of precipitating and filtering with lime and soda ash to obtain soft water. More complicated, there is a certain degree of professionalism. Ordinary people generally cannot operate. For example, in experiments, the ion exchange method is used to turn hard water into soft water.
For our farmers' friends, it is enough to use pesticides, rivers, rivers, etc., but try not to use groundwater, tap water, well water, etc.
The above is all the content of today, the main method is to organize the reciting from the agricultural technology, interested farmers can learn more, learn more, see if it really makes sense!
Disposable Suction And Irrigation Sets
A Disposable Suction Irrigator Kit is a medical device used during surgery to remove blood, debris, and other fluids from the surgical site. The kit usually includes a straw and rinse tube, both of which are disposable and designed to be used only once. Suction tubing is used to remove fluid from the surgical site, while irrigation tubing is used to introduce sterile saline or other solutions to the surgical site to help clean and irrigate the area. The single-use nature of the kit helps reduce the risk of infection and cross-contamination between patients.
Product features of disposable suction and irrigation equipment:
1. Dual functions of flushing and suction, one machine with multiple functions;
2. The flushing and suction functions are clearly distinguished, and the operation is simple, one-handed operation, convenient and fast;
3.Fully transparent pipeline design provides the best way for suction observation operation;
4.The front and rear ends are detachable, which facilitates the absorption of foreign bodies during the operation.
Disposable Suction And Irrigation Sets,Medical Suction And Irrigation System,Sterile Disposable Suction Sleeve,Medical Tube Suction Tube Set
Changzhou Weipu Medical Devices Co., Ltd. , https://www.wmlaparoscopic.com