In trying to find a good micronutrient granular supplement for my area, which tends to be low in micronutrients, especially Manganese, I found this particular product by GreenAll at my local garden center. It looks pretty promising, as it is higher in Manganese (0.5% Manganese, as opposed to usually 0.10% Manganese.) Plus, it has soil sulfur in it, which is certainly going to be helpful in reducing my pH to allow better uptake (my soil/water pH is not bad actually, by California standards, about 6.9 to 7.1/7.2). It is by EB Stone, here's a link to the product:
http://www.ebstone.org/21_fst.php
Not cheap. $9.00 an 8lb. bag. Supposed to apply 1 lb. per young citrus tree. So, that's only 8 trees per bag and I have about 45 citrus trees. They do have a 30 lb. bag, so I'll have to hunt around for a source for that. Not all are chlorotic, so I won't apply it to any trees that are green. Mainly my young trees struggle every winter with some degree of chlorosis. I could use a foliar application, and I know something cheleated w but with 45 trees and working full time, that's kind of labor-intensive.
So, I'm going to give this product a try and see if I can see an improvement in the next couple of weeks. I would love opinions. Just trying to find something I can easily and quickly apply to the soil and let the drip system water in. Spraying 45 trees with a backpack applicator is not really appealing to me
