We offer Zinc Edta, with Zinc content 12% (Expressed as Zn) percent by weight minimum in the form of ZnEDTA. For best results crops should have sufficient supply of water and other major fertilizers. Spray of Release-ZnEDTA should be carried out during morning hours or during late afternoon hours. Do not spray Release-ZnEDTA during strong sunshine and if rainfall is expected within 4 hours of spray. If rain falls within 4 to 5 hours of spray, crops should be re-sprayed 3 or 4 days later.