How to prepare potassium permanganate solution
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1. Use clean water. To prepare potassium permanganate aqueous solution, be sure to use clean water, flowing water, never use sewage, dead water, rice water, etc., otherwise it will reduce its oxidative sterilization function.
2, to be used now. Potassium permanganate is easy to decompose in hot water and boiling water, so the water must be ordinary cold water, and it can be used as long as it is used.
3, to weigh accurately. If the concentration is too low, it will not function as an oxidizing and sterilizing function; if the concentration is too high, it will cause waste, and when the seeds are soaked, it will burn the embryos and inhibit the emergence of seedlings.
4, to be used alone. Potassium permanganate aqueous solution can only be used alone or in combination with other pesticides and fertilizers. It can not be mixed with any pesticides or fertilizers, otherwise it will seriously affect its efficacy.
Huaxian Agricultural Technology Promotion Center Lu Shuguang