A citric acid chelated iron with 20% more chelated iron than other products. Excellent for foliar feeding in which the iron and nitrogen citric chelate is quickly absorbed by leaf tissue. Also buffers alkalinity in water (potential acidity of 872 lbs CaCO3 equiv). 16.09 oz per gallon of concentrate @ 1:100 delivers 100 ppm N and 150 ppm Fe. Nursery foliar: Corrective: 1 quart per 100 gallons/water. Maintenance: 1.5 pints per 100 gallons/water