Gardening - Fruit: Maintenance
Application of fertilizer to fruit trees is essential to maintain adequate tree growth and good fruit production. Insufficient amounts of fertilizer result in a decrease in tree vigor, fruiting intensity and fruit quality. Excessive amounts of fertilizer may mean a loss of fruit quality, primarily due to shading and poor spray coverage resulting from the lush growth.
"SP307-A-Fertilizing & Liming Fruit Trees," The University of Tennessee Agricultural Extension Service, SP307A-5M-2/97(Rev) E12-2015-00-045-97, http://trace.tennessee.edu/utk_agexgard/4