This will be my first time using 46-0-0 Urea. Lawn is tall fescue.
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I have read on here that Thanksgiving weekend is usually around the right time to apply it but that is not very specific. The lawn has not grown for 14 days, the temperatures are still mild here in Maryland, and I can see the blades of grass beginning to go dormant. I have read on here to apply it about 2 weeks before the ground freezes and after there is no more top growth. The lawn has already met one of those two criteria.
I have read a lot of warnings about burning the grass with Urea. I plan to only apply 1lb per 1,000 sq ft on dry grass during a cool, cloudy day, with a broadcast spreader. Then I plan to immediately water the lawn with about 1" of water.
Any tips or advice is appreciated. Thank you.
Yours is a wise question. Urea is an agricultural, quick acting form of Nitrogen that could easily burn your plants if misapplied.
(Apparently if your P & K levels in the soil are sufficient their software program defaults to urea and applications listed as 1,000 pounds per square foot).
For more information, please visit urea 46-0-0 nitrogen fertilizer.
We would recommend that you use a complete liquid fertilizer to help seedlings get established or use a high N fertilizer like cottonseed meal or other blended organic fertilizer where the N is higher than the P & K.
Our Fertilizing Vegetables page explains more:
https://extension.umd.edu/resource/fertilizing-vegetables
Christine
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