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Old 11-04-2013, 06:20 AM posted to rec.gardens
Billy[_12_] Billy[_12_] is offline
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First recorded activity by GardenBanter: Apr 2012
Posts: 243
Default Fertilizer formulae

In article ,
songbird wrote:

Billy wrote:
songbird wrote:

...
Billy, you missed, "organics fertilizer" in
the description.


Bird, I wasn't addressing myself to our local IDF representative, but to
David E. Ross' reply.


ah, ok.


I was just running the numbers for my tomato
amendments when I saw his response. I thought it was pretty neat that
using the recommended amount of chicken manure, also gave me more than
the amount of phosphorous that I needed.

Recommended N: 125 -250 lbs / acre

125 lbs/ acre = 43,560 sq.ft.

0.002869605142332 lbs/sq.ft.

1.302800734618916 g / sq.ft.
13.02800734618916 g / 10 sq.ft.

Chicken manure N =1.1

1.1g / 100g = 13g / x

xg / 13g = 100g / 1.1g

x = 1182 g or 2.6 lbs of Chicken manure per 10 sq. ft.

Since 125 -250 lbs were called for per acre
10 sq.ft. will require 2.6 - 5.2 lbs of chicken manure/ 10 sq. ft.


not sure i'm seeing this right as i
don't think 2.6lbs is to 10 square feet as
125 lbs is to an acre. i think you've
shifted a few decimals too many someplace...


Run the numbers.


...
I've already prepped 2 beds, but I did it by eye-ball, which I find is
an untrustworthy approach. I used most of a 1 cu. ft. bag of chicken
manure for just 36 sq. ft. Now I need to go get a second bag for the
other bed. For the prepped beds, I'll need to be diligent with the fish
emulsion in order to compensate.

Well, back to thinkin' about workin'.


good luck,


songbird


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