[Arid_gardener] Question from Home-Hort WWW page

[Dick Gross]

Neil I would trash the ironite and use only 21-0-0, Amonium Nitrate to feed 
your trees. The nitrogen should green up the foliage, The amount is more 
complex and I can't off the top of my head tell you how much to use.  I 
haven't calculated it for years but it should be applied in February, May 
and September. I believe the bag offers a formula. follow that.

Personally, with 30 year old trees, I lay a heavy bead around the drip line 
and water it in until I can sink a soil probe at least three feet deep 
around the drip line.

I lay a bead around the drip line, the only place where there are feeder 
roots to use it. I don't encourage the novice grower to guess at the amount 
but too little fertilizer in the right place is not too bad a practice.  If 
any Master Gardeners have that info at their fingertips, please share it 
with Neil.
----- Original Message ----- 
From: <nbibler at msn.com>
To: <arid_gardener at Ag.arizona.edu>
Sent: Wednesday, June 20, 2007 8:08 AM
Subject: [Arid_gardener] Question from Home-Hort WWW page


> Neil
> 85044
> nbibler at msn.com
>
> I have an orange tree that is in this third or fourth summer _ still young 
> and small. Its leaves are yellow-green despite fertilizer and ironite. My 
> question is why, and what to do. It gets rather frequent deep-soak 
> watering. It's basically in clay soil with a hard clay pan not far below 
> its roots, though I did add enriched soil and dug a decent hole  when it 
> was planted. Nearby quite mature citrus trees (25 years or more) have deep 
> green leaves from much the same treatment.
>
>
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