74ad7966_Nutrition__Toxicity
[Element] Iron [Deficiency] pronounced interveinal chlorosis on young leaves, starting at margins and spreading through entire leaf. stunted growth and aborted flowers. High pH can lead to iron deficiency, low pH can lead to preferential uptake of aluminum, restricting iron absorption remedy: foliar spray with 0.2 to 0.5% iron chelate every 3 to 4 days [Toxicity] 
not usually a problem
Nutrition
Toxicity