planning to use this for the 1st time. got it off amazon. came with no instructions. how much do i put under my berry bushes/ apple tree. N is 48. all 2nd leaf or older. thx.
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I’ll call attention to @Olpea aka, Mark. He has far more experience using urea.
I only follow his advice using urea on peach trees. I don’t know about other fruit trees,
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First , Amazon would be a expensive place to by nitrogen.
Surly you can get this much cheaper at a feed / farm store locally.
How much to apply ?
Zero – a handful or two ,… More or less …per tree.
This is highly dependent on the natural fertility of your soil.
The age of tree, and most importantly how much growth your trees are putting on already.
Urea can be lost to volitlization,if it is dry ,it is best watered in,
Some put it down befor a rain ,( it can all wash away)
Or put it down as the rain stops, letting it follow the water into the ground.
Or best mixed with water and applied.
If you are familiar with like mirical grow type products , say 20-20-20 that is 1/2 the strength of 46 % urea in nitrogen.
So this is potent stuff, you can kill young trees if improperly applied, be carful, spread evenly in a big circle , don’t just dump next to tree.
There are many resources on line like this below,if you want to do the math,
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I would echo Hillbilly’s response. You’ll want to gauge the growth. In Tippy’s case, her peach trees were struggling with growth, so as I recall she had to dose them pretty heavily.
With apples, too much growth can be a negative, as it can make them more susc. to fireblight (unless they are resistant varieties).
I try to put urea down before a rain. The recs generally state it takes about 1/2" of rain to move urea deep enough so it doesn’t volatilize. Many times I’ve put urea down, expecting a good rain, and then only get enough rain to cause it to volatilize. If you are able to mix it with water and water it in that way, that’s the best.
If you have coated urea you don’t have to worry about it.
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i buried a small amount , about 1/4 c, under the mulch around the drip line of all my plants. i went light to be on the safe size. we got a half in. of rain last night and its still coming down. I’ve learned to go light with any ferts. to be safe. my trees/ plants are just leafing out so not sure on growth yet but i didn’t give any last season other than a handful of worm castings under the mulch so i should be ok. i bought in on amazon because no one has it around here and it was pretty cheap. probably why there wasn’t dosage instructions with it. thanks for the help folks!
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Funny rhis thread should appear. I also purchased a small 5 lb bag of urea from Amazon for the same reason. I could not find it locally. Ive not put it down uey and was also wondering about the correct amount to apply.
Local price at farm store
14$ / 50lb.
Amazon price
14$ / 5 lb. + shipping
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got a 10lb for $12 plus free shipping with prime. only other farm store here is TSC and I’ve never seen it there… none at lowes or walmart 60 mi. away either. our local nursery has every fert. in the world but no urea. what farm store do you get it at that price? i collect my urine and dump it in my compost . its pretty hot once its all broken down.
Spot on.
My farm store is a bit more expensive: $14.99/50lb 
It is just not worth buying these from Amazon.
50 lb will last and last – atleast for my usage.
This is really potent stuff. I dissolve it in a big pail (45 gallon) of water. I add about 10 tbsp to this. Thats it. I also add epsom salt, some calcium, ironite. Stir it up before watering.
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@moose71
Quote
“(what farm store do you get it at that price?”)
Well they are one of a kind independently owned feed / farm stores, not a national chain.
So to be clear to the Penney.
The closest store
Urea 50 lbs= $13.58
If i drive a little to the next bigger one,…
Urea 50lbs. = $11.15
And cheaper by the ton if you are a farmer.
This is a rural , but really no agricultural area
Hay would be the big crop these days.
Not advocating anything here, just sayin. That’s the price.
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In suburb like where I live. There is no farm or feed store. The only urea we have is Espoma’s urea. A 5 lb bag for $10. Pricey, yes.
I live in a city myself. But if I drive 20-30 miles, I can get to several farm stores.
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Nothing in my town either than I could find. And I have both Tractor Supply and Southern States.
I spent $10 shipped for a 5lb bag. If I have good luck with it I’ll keep my eyes open for a bulk bag.
We gave two Tractor Supply stores within 20 minute drive. We have Agway, Ace Hardware, Lowe’ and HD. Not real feed store within an hour drive that I know of. Maybe, I will order on line next year.
All prices are local. Most agricultural row crop stuff in the Midwest is dirt cheap.
I can’t imagine trying to find ag stuff at cheap prices in tiny urban states like MA or RI.
The internet is great, but for low value added products like urea, no one wants to ship a single 50# bag somewhere at elevator prices. It just doesn’t work.
I totally get the lack of supply. It’s frustrating, but is what it is.
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@Olpea has it pretty spot on. I looked everywhere I could think of and couldn’t find it anywhere around my area (Arlington, VA). For cheap fert the best we do is a good old bag of 10-10-10, but that clearly is a totally different thing.
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You are right that @Olpea was spot on. In MA, I can’t think of anything garden-related items that are chaep. Even dirt is not cheap, 
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im in very rural n. maine and i bet the stuff here is even more expensive than southern new england just because it cost a arm and a leg to ship all the way up here. cheaper to buy in canada but limited on what and how much you can cross.
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Look to see if your county has an Ag Co-Op, that’s where we can get it cheap. We also have one of the few remaining Agway garden centers that used to have Urea for cheap, but it sold last fall and the prices have doubled (which is entirely reasonable).
we have a agway about 60mi. from here. ill have to go check with them. i totally forgot about them.