I just gave call mag (4-0-0) at half rate as someone in another forum suggested. So do you think my action will make the situation worse as it also includes N?
If it's CaNO3, then you'll need to back off the other forms of N here. I go through quite a few threads, are you growing in coir, or soil, or soilless, or what? If you're growing in soil you usually don't need to b too concerned with Ca, let alone Mg, as there's usually a sufficient supply.
If you're growing in some other media that's soilless, then I suggest getting a Ca-only product and using Epsom salt for the Mg. Then when you feed, alternate Ca and Mg, making sure that you're feeding at least 4x more Ca than Mg.
I hope that makes sense!
What I dont understand is If bottom leaves are yellowing because the plant pulls nitrogen out of them, then I should add N, however there is a tip burn because of overfert. So what is the best way to help such plants? Stop giving any kind of nutes till harvest or for a week or two?
Show us more better pix of the lowers, we'll be able to tell you for sure. In my experience N- doesn't yellow out that way, leaving the veins green. Usually N- yellows everything out, then the leaf drops.
Right now I say that unless whatever that is on the lowers progresses, leave it alone and don't think about it. It's just a few leaves and the plants otherwise look REALLY really good.
