The tree will begin what is known as alternate bearing, producing a good crop every other year. Pears tend to be heavy producers, and this habit is actually encouraged with young trees so that all that fruit will weigh the limbs toward a more horizontal position and slow tree vigor. But you don't want the limbs to be so weighted that they point toward the ground or break. As a pear ages, it's best to thin quarter-size fruit to one or two pears per cluster, with clusters 5 inches apart. This thinning practice will discourage the tree from alternate bearing.
Pears grow quickly here and require little or no fertilization.
Since yours is growing so well, I would simply skip fertilizing. Vigorous growth is more susceptible to bacterial fire blight, the disease that attacks after a tree blooms and leafs out. Fire blight blackens the foliage and shoot tips. Then when the rains do come, the trees will flower. This can result in either a small crop the following spring or no crop at all.