View Single Post
Old July 12, 2018   #48
zipcode
Tomatovillian™
 
Join Date: Jun 2010
Location: Romania/Germany , z 4-6
Posts: 1,582
Default

Quote:
Originally Posted by IronPete View Post
Now I start with 10-15-10 but have moved to15-15-30. But what is the difference between that and say 18-18-21 (I have a Miracle Grow with that mix) or say my Shultz 4-5-8???
The 15-15-30 sounds pretty good once the fruit have formed. Differences are concentration, obviously, and ratios, but also what microelements and how much and in what form (crucial in no-soil), the type of nitrogen and ratio (NO3-NH4), and other elements that are not mentioned (like how much is in sulfate form?, sulfur is never mentioned even though it is there for sure).
Organics have all sorts of microelements and also a good amount of calcium (especially chicken), but it's never mentioned how much.
Calcium is important depending on your watering water and if you don't add it it will be problematic for taste first.
zipcode is offline   Reply With Quote