Avocado

How much boron is enough?

The amount of boron fertilizer needed depends on the soil and climate in which the avocado is grown, the seasonal growing conditions encountered that year, and the timing and method of boron application.

Rates of boron fertilization should be based on soil tests and/or plant analyses, previous experience, yield and quality goals, timing and application methods. Standard ranges of boron fertilization are normally suggested to meet avocado needs under average local conditions.

Timing your boron application

• Boron can be applied using a foliar spray of Solubor^® while flowers are at the cauliflower stage or immediately after flower emergence
• Liquid suspensions of boron using either Fertibor^® or Solubor can be injected into the soil under the canopy during periods of root flush
• Season-long applications of boron can be achieved by topdressing Granubor^® on the soil under the canopy