Hy everybody i´m new at APC. Im from URUGUAY so I will have lot of mistakes at writing in English, sorry

Can somebody tell me what compounds can be mixed in order to make one solution and facilitate the fertilization?
I have already the solutions prepared, I use:
-K2SO4 (50g in 500ml of water)
-KH2PO4 (16g in 500 ml of water)
-KNO3 (100g in 500 ml of water)
-CSM+B (12,5g in 600 ml of water)
11ppm NO3, 11ppm K, 1ppm PO4 and 0,12ppm Fe are my "levels of fertilization"
Is it clear?
Thanks everybody