THIS IS THE WAY I RECHARGE MY USED SOIL AFTER ITS BEEN FLUSED OUT OF ALL THE NUTRIENTS,THIS IS A CHEAP WAY TO RECHARGE YOUR SOIL BETTER THAN WHEN IT WAS NEW,ALWAYS READ THE LABLE OF THE PRODUCTS YOUR PUTTING IN YOUR SOIL,THATS WHY IM USING THESE PRODUCTS BECAUSE I KNOW WHATS IN THEM.ITS PRETTY GOOD STUFF