Pecan trees will produce pecan for many years once the tree is 9 to 12 years old. Pay close attention to the branch angles and placement along the trunk. Training a pecan tree to have strong branches is important for a long productive life of the tree. This is done when the pecan tree is planted and all branches are removed according to the distance apart, placement of the branch on trunk and branch angle. Strong branch angles are 45 to 90 degrees. Pecan trees prefer angles closer to 90° When you look down on a pecan tree the placement of the scaffold limbs should look like the spokes of a wagon.

Texas A&M Extension has a great web site for pecan growing information including fertilizer recommendations. For pecan tree information and more please go to http://aggie-horticulture.tamu.edu/fruit-nut/files/2010/10/viewpdf_3111_21293.pdf

TAMU also holds a pecan short course each year. If you are growing pecans for profit, be sure attend this short course.

Another source I recommend is Texas Pecan Growers Association http://aggie-horticulture.tamu.edu/fruit-nut/files/2010/10/viewpdf_3111_21293.pdf