At present, pests and diseases are very harmful to crops in agricultural production. How to effectively control pests and diseases will directly affect the yield and quality of crops. However, there are many unscrupulous agricultural traders in the realm of private interests who illegally sell expired pesticides or even pesticides. In view of this situation, it is particularly important to identify the authenticity and inferiority of pesticides. Specific identification methods are as follows:
First, the packaging method
Check mark, the relevant state department regulations, pesticide packaging bags must indicate the product name, active ingredient content, trademarks, net weight, standard code, dosage form, pesticide use methods, manufacturers and production permit, registration certificate and Other signs. If the above signs are not available or incomplete, they may be fake pesticides or inferior pesticides.
Second, the dissolution method
Applied to precipitated emulsion pesticides. The agent can be soaked in warm water of 35-40°C for one hour. If the bottom of the bottle dissolves, this drug can be used. The sediment at the bottom of the bottle can also be filtered out and placed in a bowl with appropriate amount of water, such as precipitation. The substance dissolves, indicating that the drug has not failed; if a small portion of the precipitate does not dissolve, it proves that the drug is about to fail, but it can also be used.
Third, burning method
Suitable for powder pesticides. A suitable amount of powdered pesticide can be taken on a metal iron plate and then burned on fire. If white smoke is present, it proves that there is no failure; if no white smoke or insolubilization occurs, it proves to be a fake drug.
Four, water-soluble method
Suitable for wettable powders and emulsion pesticides. It is advisable to take 50 grams of powdered pesticide in a glass bottle, add a certain amount of fresh water, and stir a little. After half an hour, if the particles are evenly suspended, there is no precipitate at the bottom of the bottle, indicating that the drug has not failed. Wettable powders tend to become lumpy during storage. The agglomerated powder is crushed and a small amount of water is added. If it dissolves quickly, it proves that the drug has not failed and is not a fake drug.
V. Oscillation
Suitable for emulsion pesticides. First look at whether the upper and lower stratification, if stratified, can shock up and down, to make it uniform, and then set aside for an hour, if still stratified, it is not a failure is a counterfeit drug, can not be reused.
Auger Elevator
Introduction:
The Auger-Type Elevator can lift the wheat or corn and discharge it in to processing machine or packaging machinery as required.
The length and diameter of the elevator can be customized by client`s request.
It was widely used for many areas. The high efficiency working rate with low cost.
Features:
ï¬ Large quantity and fine fluidity
ï¬ Easy moving and operation
ï¬ Simple maintenance
ï¬ Low energy consumption and high-efficiency.
Auger-Type Elevator
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SHIJIAZHUANG SYNMEC INTERNATIONAL TRADING LIMITED , https://www.seedgraincleaner.com