The whole thing about it is application rates, teas will correct deficiency quicker than a topdress as a topdress is supposed to feed for a long period (3-4wks) and nutes enter the soil thru watering. That's the reason for amounts. Past the initial pre-amendment, I half my volume per gal of grow media. So containers are 4 gal, initial pre- amendment would be 4 cups 4-4-4 for 4 gal media. Then at 4th or 5th week of veg I do 2 cups total... 1 1/2 cups 4-4-4 and 1/2 cup 3-9-4. 3-4 weeks later I switch to 12/12 and 1 cup of each. Then last amendment should be 1/2 cup 4-4-4 and 1 1/2 cup 3-9-4. I will add that this is my first time employing this technique and the girls have loved it. Eventually I would like to swap to bigger containers (4 to 7 gal) to get larger plants.