Ive used this for three years but I have had this mysterious
leaf curl problem about every other crop and I have yet to
defininatively rule out any cause.
thebeachman Reviewed by thebeachman on . PH down= phosphorus toxicity? Im trying to figure out a leaf curl problem and talking to my guy at the hydro store we were going over some possibilities and he mentioned something about adding phosphoric acid may lead to too much phosphorus in the solution anyboby hear of this?:hippy: Rating: 5