Why does everyone think MG burns plants? Um,....Doesn't common sense tell you that you're all mixing it too strong? 1/4 strength MG is stronger than many ferts mixed at full strength, which I think, is the reason for all the issues. Knowing that, 1/8 strength MG is too much for small plants, and the main reason people burn them with MG. They don't realize how potent it really is.
As mentioned, any fert with high N value, will work fine, if mixed correctly, and PH-adjusted, if necessary.