Fertilizers and Water Parameters
Can this product be used for potassium sulfate (K2S04)? Not sure if the term "organic" in this case makes a difference.
I'm looking to buy 3 lbs. I can usually pick up 1 lb. for $3.00. So 3 lbs. plus $8.00 shipping comes to $17.00. This is $16.00 for 5 lbs. Sounds like a good deal if it can be...