You cannot expect a high quality fruit from such a young tree.  Citrus trees do not produce higher quality fruit until at least 5 years of age.  Lastly, Valencia's are normally used as a juice orange.

Thanks to all the members for there support.  I will be at http://citrusgrowersv2.proboards.com/

God Bless

Will, your tree will be much better off using a granular fertilizer, rather than spikes.  Although most any type of fertilizer is "OK", some nutrition ratios are better then others.  I always use Peters Professional 25-5-15 for all my citrus. 

Will The Mewa kumquat if grown outdoors need to be in zone 8 or higher.

I have never used the instrument shown.  I only use a simple grafting knife.

yes, sandy rapid draining soil, is a problem when it comes to maintaining an even moisture level in the tree's root zone.  Try your best when the tree is in bloom.  The bloom lasts a couple weeks +or -.

3d spray is to enlarge fruit, If you wish larger fruit.  The first spray, 2 months befpre expected bloom date is very important in setting a good bloom.  Did you do the first spray, and was it a couple months before expected bloom?

The bad thing is your tree is growing in Florida, which is the worst possible location possible for a citrus tree.  Healthy citrus trees die just as dead and citrus trees that are not in prime condition.  If an infested psyllid feeds on your tree it will die.  The tree's only hope is that a cure can be found.  They have been desperately searching for a cure for over 10 years and as yet have not found it. I give your tree a zero percent chance for a long life unless you surround it within a tight screened habitat to keep psyllids from ever reaching it.  If your tree has be growing outside it could very will have already been infected.

Depends if your spaying for micro nutrients or general nutrition.  All commercial growers use low biuret Urea, which they apply 3 times a year.  2-months prior to bloom, after early drop, and again in July.  The first application increases the bloom, second increases the amount of fruit held by the tree, and the third spray increases the size of the fruit.  There are various micro nutrient sprays available.  I use one called STEM, but I'm not 100% sure it is on the market, 

I have a lot of trees grafted on Flying Dragon. I like the rootstock for its ability to keep trees shorter, as I grow in ground trees inside a large greenhouse.  As Laaz wrote, flying dragon's bud union typically does show considerable shoulder development, which sometimes can lead to compression  girdling.  Most mandarins perform extremely well for at least 15 years, but eventually develop bud union crease and decline.  Overall it is an excellent rootstock where it is well adapted. Disease resistance make it a good choice for replant situations. It is well adapted to loam, sandy loam, and clay soils. Can also perform well on sandy soils, but only if irrigation is managed carefully because roots are shallow and therefore trees on trifoliate are quite susceptible to drought. Flying Dragon's internal fruit quality is good to excellent with all common scions.  Fruit typically have high solids, acids and juice content. There are numerous root stocks, but not one that is fully suitable for every situation that a tree could  find itself growing in.

Me. Texas and I both agree.  It seems the wisest thing that pinkturtle could do.

pinkturtle, Florida is a dangerous place to grow citrus.