I am kind of concerned that people are being so careful to not over water that they are drought-ing there tree to bad health. The rootstock is chosen to minimize these problems.
Perhaps I am wrong but can any one tell. If the stick is dry, the tree may be to dry. Should we be choosing our rootstock as well as the tree.

As for water PH, you are so lucky

I do not use the 5-1-1- mix. However, think that poncirusguy is on the right track. I have caused more damage to potted and in-ground citrus roots by under-watering than over. In the warmer months, and especially when your tree is growing the fruit, it needs lots of food and water.

You did say that it has rained allot. I am suspicious that the tree may be underfed.

I don't think that the tree is being under-watered since there has been so much rain. The leaves don't get wilty, just yellow.

I thought the rain might be washing all the fertilizer out so for the past month, I have been feeding the day after a rain. I might start feeding on a daily basis and see how that works out.

Thanks for your input.

Citrus grow "naturally" in places that rarely get dry... I would take that as a guiding principal.

The biggest problem I have with my field Meyers is during the dry season, not getting enough water.