1, pay attention to the choice of pharmaceutical formulations. The pharmaceutical soaking is done with a diluent for the drug, and the drug used must be soluble in water. Can not be soaked with powder, because the powder is insoluble in water, powder floating on the surface of the water or sinking, uneven drug seed, can not achieve the effect of soaking sterilization. 2, accurate preparation of liquid medicine. The concentration of the agent used for soaking is calculated based on the weight of the seed and is generally calculated based on the content of the active ingredient of the agent or the amount of preparation. The soaking agent concentration is generally related to the soaking time. When the concentration is low, the soaking time may be slightly longer. When the concentration is high, the soaking time should be shortened. If the concentration is not accurately grasped, the phytotoxicity is likely to occur or the soaking effect is reduced. 3, master the soaking time. There is a certain time requirement for the soaking of pesticides. Too long will produce phytotoxicity. Too short will not achieve the purpose of disinfection. Specific soaking time according to the instructions for use of drugs to operate. 4, soaked seeds to wash and dry. Seeds with poor tolerance to pesticides should be rinsed with water after they are soaked to avoid phytotoxicity. If you do not specify how to wash after dipping, you do not need to wash. Regardless of the need or need of washing, general soaking should be followed by drying, but some can also be sowed directly after soaking, depending on the type of pesticide and soil moisture conditions. 5, the liquid surface to be higher than the seeds. When soaking, the liquid must be more than 16 cm above the seed to prevent the seeds from absorbing and swelling to expose the surface of the seed and reduce the seed soaking effect. 6, fully stirred. Put the seeds into the liquid to be fully stirred to eliminate the bubbles in the liquid, so that the seeds and the liquid fully contact and improve the soaking effect.
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