Kali Sulpuricum is among the most useful to manage ear discharges. It works best for yellow or brownish discharge with the ears which stinks.How has the potassium sulfate sector in Vietnam executed in quantity and benefit terms for the final 5 years?Không ph?i lo?i phân bón h?u c? nào c?ng phù h?p v?i m?i lo?i ??t và cây tr?ng. C?n l?a ch?n