Rice potassium chloride or potassium sulfate is good

Mr. Li from Dandong City, Liaoning Province, and Mr. Fang from Quzhou City, Zhejiang Province, asked whether it is better to apply potassium chloride or potassium sulfate to rice. How to apply?

A: For rice, both potash can be applied, but potassium chloride is better. Because, first, rice is less sensitive to chlorine, when paddy fields infiltrate, the chlorine in the tillage layer can be eluted to the lower layer and will not pose a hazard; second, potassium chloride is cheaper than potassium sulfate; and third, it is not For paddy fields that change water, if the amount of potassium sulfate is large, it may also cause rice to “black root” and produce hydrogen sulfide poisoning. (This issue of experts: Senior Advisor of Sinofert and Professor Wang Xingren of China Agricultural University)

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