What soil, what nutes? Looks like your burning the shit out of it. Flush with florakleen or similar solution and ph at 6. Your prob locking out nitrogen
whoa whoa, its not burned at all. let me explain; nute burn occurs at the new growth tips first, and the new growth seems fine.
however your leaves are lime green(early stage N deficiency) and they are probably yellowing/dieing at the lowest oldest growth(mid stage), yellowing from the tips inwards, and its climbing up the plant(late stage).
you also have a major K deficiency; i bet money that all the leaves tips are singed(early K deficiency), now they are starting to yellow slowly and that singed tip is area is getting larger(mid stage), and finally those rust spots start appearing and that the late stage. heres some pics so theres no question