# how many lbs of nitrogen?

Discussion in 'Pesticide & Herbicide Application' started by bobbygedd, Mar 23, 2004.

1. ### bobbygeddLawnSite Fanaticfrom NJMessages: 10,178

i think i know the answer, lets see if anyone else does. if a 50 lb bag of fertilizer , rated to treat 12,500 sq ft of turf, has the numbers 20-10-10 on it, how many lbs of nitrogen per k is being applied?

20%N/2=10lbs
Agr.101

3. ### bobbygeddLawnSite Fanaticfrom NJMessages: 10,178

how many lbs per k?

4. ### larsLawnSite Memberfrom PittsburghMessages: 117

50/12.5 = 4 lbs fert / 1000

4 x .2 = .8 lbs N / 1000

5. ### trimmerLawnSite Senior Memberfrom Central FloridaMessages: 293

50x.20=10lbs of nitrogen in bag

10/12.5=.8lbs per/k

6. ### Envi-LawnLawnSite Memberfrom CTMessages: 86

if my math is right- its .8lbsN/k

7. ### Envi-LawnLawnSite Memberfrom CTMessages: 86

It all depends on the person behind the spreader.
Just kidding!

8. ### GreenMonsterLawnSite Silver Memberfrom NHMessages: 2,702

50*20%=10lbs
10/12.5=.8lbsN per 1k

Interesting how lars got there. I didn't think of it that way.

I believe both are right though?

9. ### DUSTYCEDARLawnSite Fanaticfrom PAMessages: 5,134

very interesting

10. ### bobbygeddLawnSite Fanaticfrom NJMessages: 10,178

very good, you guys surprised me