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How do I apply 46%N Urea?

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#2 ·
lawnjet52 said:
I have two 50 lb bags of Urea 46%N. I was just wondering when the best time and how to apply this to the lawn.

I've never used it before, but I heard it can really help a lawn come back to life.
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With a rotary spreader, best time would be fall for cool season turf, and summer for warm season grasses. It will give the lawn a boost of N, If that is the limiting factor in the growth of the lawn than yes it would help. However If your lawn is lacking in other nutrients or is suffering from disease, than it could cause more problems.
 
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#3 ·
We use it in the Midwest as a late fall winterizer. Thats a lot of N so you need to be careful not to over apply. each 50lb bag has 23lbs of N so that would cover about 23k sq ft. southern turf is totally different so wait and see what some of the guys from the south have to say!
 
#4 ·
I would be very careful when applying straight urea (46-0-0) especially if you dn't apply on a regular basis. There is very little room for error as I don't even apply it anymore.

You can injure a lawn much quicker using a 46% product with no slow release.

If you are going to use it go with the advice above...but make sure you are not applying more then 2lb/1000.
 
#5 ·
Really depends on what type of turf you have.

Generally anything over 1/2 lb of soluble N per 1,000 sq feet can be too much this time of year. So that means you should apply about 1 lb of your 46-0-0 product per 1,000 square feet.

Apply only to dry turf, then water in as soon as possible to avoid loss due to volatilization.
 
#7 ·
TurfUnlimited said:
Really depends on what type of turf you have.

Generally anything over 1/2 lb of soluble N per 1,000 sq feet can be too much this time of year. So that means you should apply about 1 lb of your 46-0-0 product per 1,000 square feet.

Apply only to dry turf, then water in as soon as possible to avoid loss due to volatilization.
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Turf

May I add that it Also depends on what type of soil you have. Inland Red Georgia Clay can't take as much Nitrogen as a Sandy soil of the Coastal Areas.
 
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#9 ·
46% Urea = 23# N / 50# bag. Most you want to put down is a pound N / M ft.2 I'm assuming. Perule size may not cooperate too well with smaller settings on spreader though. One BIG quick "pop" of green up is what you'll get. Next rain, it'll be gone as Urea doesn't last long. What are you trying to achieve here ? Why not use a slow release with a little Urea in it ? Better and more consistent feeding and safer, especially in summer heat.
 
Discussion starter · #10 ·
turfnh2oman said:
46% Urea = 23# N / 50# bag. Most you want to put down is a pound N / M ft.2 I'm assuming. Perule size may not cooperate too well with smaller settings on spreader though. One BIG quick "pop" of green up is what you'll get. Next rain, it'll be gone as Urea doesn't last long. What are you trying to achieve here ? Why not use a slow release with a little Urea in it ? Better and more consistent feeding and safer, especially in summer heat.
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I normally don't mess with the lawn. The Urea was given to me. I have access to about 60 more bags (local golf course closed down). Just wondering if it was worth using or taking the risk.
 
#11 ·
lawnjet52 said:
I normally don't mess with the lawn. The Urea was given to me. I have access to about 60 more bags (local golf course closed down). Just wondering if it was worth using or taking the risk.
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Lawnjet: I'm in Murrells Inlet just down from you. Hold off on that Urea. You've probably got centipede which only takes 1lb a year. 1/2lb in May after greenup and about 1/2lb/K about now. Since you've got 100lbs of that stuff you have enough for almost two full acres of centipede. Or, do you have St. Augustine that needs about 1/2/K every 45 days or so. Let me know. Hurry up and get your 25 posts and then you'll be able to PM others in your area.
Welcome to the site--many knowledgable members here. Ric and Turfunlimited from our area are good to answer and offer help.
Roy
 
Discussion starter · #13 ·
Yes we do have Centipede, our lot is about 1/3 acre.

I did test a small area out back in the corner of our lot. I put it down about a week ago. Just guessing I'd say I put about a pound in a 60 square foot area.

The grass there went from a light pale green to a deep deep green, very thick and looks very healthy. Not to mention its growing at an alarming rate.

After reading the replies i'm thinking I may have overdone it, but the grass looks great....... How long after applying will the grass burn if it's going to burn at all?

BTW, thanks for the replies, very helpful.
 
#14 ·
One of the worst things you can do to Centipede is over fertilize it. Yes it looks good as you noticed, but it eventually leads to decline in the turf stand.

If you want the Centipede to produce better color, liquid Iron applications are beneficial.
 
#15 ·
lawnjet52 said:
Yes we do have Centipede, our lot is about 1/3 acre.

I did test a small area out back in the corner of our lot. I put it down about a week ago. Just guessing I'd say I put about a pound in a 60 square foot area.

The grass there went from a light pale green to a deep deep green, very thick and looks very healthy. Not to mention its growing at an alarming rate.

After reading the replies i'm thinking I may have overdone it, but the grass looks great....... How long after applying will the grass burn if it's going to burn at all?

BTW, thanks for the replies, very helpful.
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Lawnjet:
1lb of Product (Urea) is about 1/2 lb of N on a 8' X 8'. Wow--Did you water it in quickly and every day and no burn yet with the heat. Darn, Where do you live; I want to see that. Roy
 
Discussion starter · #16 ·
TurfUnlimited said:
One of the worst things you can do to Centipede is over fertilize it. Yes it looks good as you noticed, but it eventually leads to decline in the turf stand.

If you want the Centipede to produce better color, liquid Iron applications are beneficial.
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Can you explain what turf stand is?

Where would I find liquid Iron applications at? What store, what do I ask for?
 
#17 ·
Turf Stand pretty much by definition is a particular turf area. A stand (front yard, perhaps) of KBG, or TTTF.
As for the liquid Iron, I would recommend Chelated Iron and make very sure your application equipment is calibrated properly and Iron spray app. is applied EVENLY !! Lesco has Chelated Iron. Would strongly suggest not going full rate, but half and check response. Playing with Iron can give you some VERY unexpected results if not applied properly in both a visual nightmare as well as an agronomic one.
 
#18 ·
lawnjet52 said:
Can you explain what turf stand is?

Where would I find liquid Iron applications at? What store, what do I ask for?
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Lawnjet:
A new Lesco is located next to the Home Depot down in Surfside on 17 Bypass. There's the older one on 10N just off the bypass. Also John Deere Landscaping would have it. There sorta out of the way off of Seagate next to the mall. Just call em.
Roy
 
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