Isnt Calmag same kinda thing? I have Epson but just wondering
Kind of but you dont have a cal problem although calcium is one of the most important things we have a mag problem so it would be better to focus on that by itself. You also have a potassium deficiency. So if you just had a potassium product by itself I would say to feed that at about 200 ppm to help that out as well.
I dont think I ever learned why they put cal/mag together like that but they do.
The p deficiency you wont see any improvements as that takes time to fix, and actually once a leaf turns its almost impossible to bring it back you have to catch it early like inspecting with a flashlight early, what we are doing is trying to slow it down and get the plant happy again. with that said I notice that mag and nitrogen are the easiest problem to get a leaf to get back to normal, meaning if you catch it early enough you can fix it.
I wish I could remember what that law is that they picture with a wood barrel about the lowest nutrient the plant has available is the limiting factor with the plant growth but I dont.