What is wrong with my tangerine tree?
It has been on the ground for over 2 years, and it has barely grown anything. The leaves are looking yellow and the tree in general look sin bad shape. I have tried using composting/Cow manure, granular slow release fertilizer (not the cheap one), liquid fertilizer on the leaves but it does not seem to help. I tested the soil and adjusted the nutrients as recommended by the lab/store. The PH is neutral.
Thanks in advance!