Because of the cold weather, the sun exposure rate is relatively low, so everyone sometimes likes to spray pesticides when the sun is shining. In fact, this idea is wrong. Whether in winter or spring, summer or autumn, you should avoid using medication in sunny days. Because the high temperature at noon on the sunny day facilitates the decomposition of the drug and the volatilization of water in the liquid, the chemical activity of the drug becomes stronger when the weather is hotter, and the toxicity of the pesticide also becomes relatively large. Especially when sprayed with emulsifiable concentrate and various herbicides at high temperatures, it is very prone to phytotoxicity and pesticide poisoning.
In the winter and spring cold season, pesticide spraying time is 2:30-3:30 in the afternoon, and it is best not to use drugs in the morning. Because the temperature in the shed during the winter and spring seasons is low, dew retreats in the morning, and photosynthesis gradually enters the peak. Spraying will inevitably affect the increase of temperature and reduce the photosynthetic efficiency. The afternoon medication will not affect the temperature, which is conducive to the prevention of diseases and insect pests. If the continuous sunny weather in winter and spring, the temperature within the shed is higher, it can also be sprayed after 4 pm, which can also play a very good sterilization effect.
Preservatives are a kind of Food Additives which can inhibit microbial activities and prevent food spoilage. In order to make the food have a certain storage period, it is necessary to adopt certain measures to prevent the infection and reproduction of microorganisms. Practice has proved that the use of preservatives is one of the most economical, effective and simple methods to achieve the above purposes.Preservatives should also be used as food additives for the purpose of maintaining the original quality and nutritional value of the food. There are 25 kinds of preservatives such as benzoic acid, sodium benzoate, sorbate, potassium sorbate and calcium propionate.Preservatives , Thickener, Acidity regulator, Food Additives, Sweeteners.we have 4-aminobenzoic,Cycloartenyl ferulate,prechlorotadalafil,Propyl gallate,Cycloartenyl ferulate,fluorescein sodium,4-Aminobenzoic,Raspberry Juice Powder,Aronia Juice Powder,Noni Juice Powder,Mango Juice Powder,Hawthom Juice Powder.
Preservatives , Thickener, Acidity regulator, Food Additives, Sweeteners
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