The Tropical Fruit Forum

La Cases Verde  grate answer to fundimike's question.  Thank you for your knowledge in this matter.  Good Job.

Iron deficiency symptoms on a citrus tree, shows up on the tree's new leaves as you have written.. Further, the symptoms for iron identification is green veins on otherwise  yellow leaf.  However, in your tree's case, if it is deficient in iron, the deficiency is very slight indeed.. After the recent past history of this tree, it could be caused soil pH, or the highly wet soil.

During the first few years, apply fertilizer to young trees to stimulate vigorous growth of leaves and branches that will become the framework of the mature tree.  Beginning about 2 weeks after planting, frequent light applications of fertilizer should be made approximately every 6 weeks.  Fertilizer should not be applied between October 1 and February 1 for the first year or two, most especially in colder regions. The goal of the fertilizer program for young fruit bearing trees is to continue to stimulate vigorous growth of leaves and branches that may compete with early fruit production.  After the tree has become established, the goal will be to replace nutrients removed by the fruit and to provide enough nutrients to sustain continued tree growth. Many different fertilizers formulations are available for use on dooryard citrus trees. In general, the numbers on a fertilizer bag refer to the percent of nitrogen, phosphorus and potassium plus other secondary and micronutrients.  For example if the numbers 8-8-8 were listed on a fertilizer bag it would contain 8% nitrogen, 8% phosphorus and 8% potassium. Other nutrients like magnesium, copper, and boron may also be listed.  This type of fertilizer would be ideal for a nonbearing young citrus tree.  Higher analysis, mixed formulations such as 10-10-10, 12-12-12, or 15-0-14 are used on mature trees.  A 1 year old tree should be fertilized 6 times a growing season. A 2 year old tree should be fertilized 5 times per season. Three year old trees  4 times per season. Four year old trees and older fertilize three times a year.   For young trees, apply fertilizer uniformly in a 3-ft. diameter circle around the tree. As the tree becomes older, the area fertilized should be enlarge as the root system expands. As a rule of thumb, fertilize an area twice the diameter of the tree canopy.  Care should be taken to avoid root or trunk damage by uneven placement or mounding the fertilizer against the trunk. Purchase real fertilizer for your tree. Personally I would not use fertilizers such as  Dr. Earth and Alaska Fish fertilizer, your tree needs a real fertilizer.  Just looking at the tree it is quite easy to see that the poor thing is struggling to find some food to live on.  The best to you and your tree.

Clementine  does not come true from seed.

the number of HLB detections in California is quickly approaching 700.   There have been more than 350 detections in Riverside, Los Angeles, and Orange counties this year alone.

Marsh grapefruit is not a cold hardy cultivar.   I remember Dr. Malcolm Manners once wrote on the old forum, that a Marsh grapefruit he picked from a 25 year old tree was the best grapefruit he had ever tasted.  That tree was growing on the collage campus of Florida Southern Collage.

http://www.freshplaza.com/article/198259/An-orange-a-day-keeps-macular-degeneration-away

With my lemons, I juice them and freeze the juice in ice cube trays, then store in the freezer.  My wife uses them when making lemonade, and other recipes.

TFN I see you have some engineering skills

Basically there is not much difference between a grafted Meyer and a rooted cutting.  Meyer lemon cuttings root very easily, therefore the citrus nurseries now sell mostly trees grown from cuttings.  As TFN wrote, you can prune a cutting off your tree and make as many Meyers as you wish.   Enjoy your tree.,

TFN, I was at the Savannah Southeastern Citrus Expo.  In fact I won the prize (a bag of oranges) for coming the longest distance to attend the Expo.

Yes, lower light levels is certainly one of the reasons. Sometimes water sprouts also have very large leaves. Interior leaves of the tree are normally larger then exterior leaves, but then that would be due to lower light levels as Vlad mentioned.