Application rates are largely dependent on citrus type, tree spacing, age, comprehensive soil test results and fertiliser history. As a guide, apply between 220 – 440 kg/ha or 1kg/tree of Horticulture Plus in early Spring, then again in late Spring, supplementing with granular nitrogen such as AMF-N as required in Spring and early Summer. Please contact one of the Grow Safe Field Advisors for more site specific recommendations.