Pesticide soaking and sterilization should pay attention to six points
Pesticide soaking seeds plays a major role in the future prevention and control of seed pests and diseases, but pesticide soaking must be scientific. The following six points must be noted:
First, pay attention to the choice of pharmaceutical formulations
The selected agent 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.
Second, accurate preparation of liquid medicine
The concentration of the agent used for soaking is not calculated based on the weight of the seed, and is generally calculated based on the content of the active ingredient of the agent. 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.
Third, fully stir
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.
Fourth, the liquid surface to be higher than the seeds
When soaking, the liquid surface should be more than 16 cm above the seed to prevent the seeds from swelling after water swelling and reduce the effect.
Fifth, master the soaking time
If it takes too long, it will cause injury. If it is too short, it will not achieve the purpose of disinfection. Specific soaking time should be based on instructions for use of the drug.
6. Pay attention to whether the soaked seeds need to be washed and aired
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. Whether it needs to be washed or not, it should generally be dried after soaking. However, some can also directly sow after soaking, which depends on the type of pesticide and soil moisture conditions.
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