Cytrus tree fertilization and compost

On 3/11/2012, we applied Dr. Earth Organic 9™ Fruit Tree 7-4-2 Fertilizer. We followed the instructiond and applied roughly one cup per inch of tree trunk diameter. We also took this opportunity to put compost on the soil under the trees. This was done to the following trees:

• Orange and tangerine tree in left-hand side of our backyard and tangerine tree by the house: I removed the mulch, spread the compost under the canopy, sprinkled the fertilizer on the soil, and watered the trees generously.
• Four citrus trees growing in pots in the backyard: I mixed one cup of fertilizer (per tree) with the top soil, poured some compost "juice," and watered until the soil was soaked