Trials have shown that balanced nutrition with N, P, K, and the micronutrients, boron, iron, manganese and zinc, will help to improve citrus yield through increasing fruit weight.
It is important to make sure that these nutrients are not limited during early and mid fruit development.
According to trials potassium has a positive influence on fruit weight by improving fruit fill.
Boron, iron, manganese and zinc
Boron, iron, manganese and zinc will all help improve leaf and tree performance leading to improved fruit weight.