Potassium nitrate, wanda kuma aka sani da saltpeter, wani muhimmin fili ne da ake amfani da shi a masana'antu da dama da suka hada da noma, sarrafa abinci, da kuma magunguna. A matsayin muhimmin bangaren taki, yana taka muhimmiyar rawa wajen bunkasa tsiro da kuma kara yawan amfanin gona. Farashin kan tan na potash...
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