I am Looking for a good fertilizer calculator ??

[alabama]

Looking for a good fertilizer calculator ??

I need to order fertilizer to get my P and K out.
I need 50 units of P and 240 units of K per acre. On the hay field.

The coop has 18-46-00 and 0-0-60

So how much of each do I blend together and what will the final analyses be.
??-??-??

Does anyone know of a good on line calculator to run this in.
I goggled many but I never found a good one.

 

[Dave]

If you blend 108 pounds of 18-46-00 with 400 pounds of 0-0-60 you will have a blend that is 3.7-9.8-47. You could round that up and call it 4-10-47. Apply 508 pounds per acre to get your 50 Pound P and 240 pound K.

 

[alabama]

They worked it out at the coop and we put out 3-9-47 at 500Lb to the acre. I got 2.5 inches of rain on it yesterday so it might all be in the river today. In the river or not, that is all the P and K that field will get this year. I plan to put out my N next month.

 

[BC]

What kind of grass are you fertilizing? Is this for hay?

 

[tom4018]

Here is one I found.
http://www.noble.org/Tools/fertCal.html