I use a program called hydrobuddy it take the source and will calculate concentrates and direct addition amounts by weight, volume and ppm etc. It takes into account the availability of the source used. You can also just out it the ppm for any and all nutrients and then hit calculate and it will use the nutrients you have in whatever form and give you how much of each to out in by weight or volume. It will also calculate how to make a+b concentrates and which sources go in which. You need to go into substance selection to add or remove which sources you have available.
Here is a thread with some good info. But the nutrient calculator hydrobuddy makes it all easy.
GrowFAQ : *ChristianKungFu - Basic Elements and Nutrient Balance (long)* Added by: snoofer Last edited by: snoofer Viewed: 256 times Rated by 12 users: 9.55/10 *Basic Elements and Nutrient Balance* Intro - N - P - K - Ca - Mg - S - Micros I suppose a basic...
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