Trickle Irrigation:

emitters (1 gal/hr) with 2 emitters/tree

about 240 gal/tree/yr.

Fertigation: Peters 20-20-20 (3 times each yr.)

0.6 oz N/tree/yr.

Granular (10-10-10)

1 oz N/tree/yr., 2 oz N/tree/yr. after two years