[rockinmylawn]

Tier 3 - If you have irrigation, then you could maintain the lawn out of dormancy. A light dose of nitrogen could be use in June and July.

Am in transition zone.
If I wanted to feed my lawn in June & July, I have some leftover 46-0-0 urea hfrom the fall blitz - can that be used as my nitrogen for this light dose?

How much is a a light dose?

 

[Rucraz2]

Im thinking most on here will say no. Even with irrigation. Im debating on putting down a little bit over a quarter app just to help where I didn't get good coverage at the end of May. But im nervous doing that using 29-0-4 and irrigation. I personally wouldnt even consider it using straight urea. Temps should be a lot lower for that. Most guys on here dont fertilize during the summer. Unless its organic, or milorganite which technically isn't considered organic.

 

[g-man]

In my opinion, no more than 0.25lb of N/ksqft. I've done 0.10lb/ksqft. Get to know your risks. More nitrogen means more water, more water leads to more fungus. I go fast nitrogen so it is not lingering there for a while if you need to dial back.

 

[rockinmylawn]

In my opinion, no more than 0.25lb of N/ksqft. I've done 0.10lb/ksqft. Get to know your risks. More nitrogen means more water, more water leads to more fungus. I go fast nitrogen so it is not lingering there for a while if you need to dial back.

I actually was even thinking of what some term a 'teaspoon feeding'.
So that 0.10lb/k sounds like it.

Is 46-0-0 considered fast N?

I'm not trying to push growth as much as trying to ensure the 3 months between feedings doesn't stress out the grass.

 

[g-man]

Cheap uncoated urea (46-0-0) is fairly fast, so yes. Coated is not that fast (depends on the coatings). The problem with urea at 0.1lb of N is the low qty to spread. It is 0.22lb of urea/ksqft. Now if you want, you could spray it going foliar or use AS (21-0-0).

Most of us use the term spoon feeding for 0.25lb of N/M.

 

[rockinmylawn]

In my opinion, no more than 0.25lb of N/ksqft. I've done 0.10lb/ksqft. Get to know your risks. More nitrogen means more water, more water leads to more fungus. I go fast nitrogen so it is not lingering there for a while if you need to dial back.

Don't have my conversion hat on this AM but what is the application rate for 46-0-0 Urea to equal the Nitrogen rate referenced above?

I think it's this:

There is 46% N in 46-0-0 fert = 0.46 pound of N per pound of fertilizer.

Calculation - source: http://pubs.ext.vt.edu/424/424-035/424-035.html

Rate of fertilizer to apply 0.25 lb N/1,000 sq ft:
0.25 lb N ÷ 0.46 lb N/lb of fertilizer = 0.54 lb of 46-0-0 fert/1,000 sq ft.

 

[g-man]

^ that is correct. (0.25/0.46=0.54)