Fertilizing Pecan Trees for Maximum Nut Production

Schedule Based on Trunk Diameter

Measure trunk thickness at chest height. For each inch, broadcast 1 lb of 10-10-10 three times yearly: late February, June, September (max 25 lbs/tree/year). Large mature trees can get all fertilizer in early March.

Also apply zinc sulfate yearly: 1 lb for 4–10 year trees, 3–5 lbs for large trees. Prevents pecan rosette (knotted leaf clusters).