RE: [CH] Chem Question
Mary & Riley (uGuys@ChileGarden.com)
Wed, 17 May 2000 21:25:48 -0700
I'll give a couple of these a shot...I'm not a chemist...
> OK here are some questions for the chemist.
>
> The following is a listing of what is in dairy cow flop in NM. Per NMSU.
>
> Parameter Dairy cow
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> pH 8.7
>
> EC (mmhos/cm) 15.9
> Question #2
>
> what is EC (mmhos/cm) ?
>
Electrical conductivity, inverse of resistance (ohms) measured in (inverse
ohms)=1/ohms=mhos, the other m being milli, so milli mhos per centimeter.
How much electricity it conducts.
> Total kjeldahl nitrogen (%) 1.74
> Question #1
>
> What is kjeldahl Nitrogen ?
>
Kjeldahl was a chemist who developed the standard test for total
nitrogen--hmmm, just read what YODA had to say--standard test for organic,
carbon-bound nitrogen.
> Nitrate nitrogen (ppm) 87.4
Nitrogen as -NO3, as opposed to organic nitrogen, eg, in protein.
> Phosphorous (%) .45
> Potassium (%) 1.51
> Calcium (%) 1.81
> Sodium (%) .24
> Magnesium (%) .43
> Iron (ppm) 2197
> Zinc (ppm) 149
> Manganese (ppm) 196
> Copper (ppm) 28
> Boron (ppm) 28
> Aluminum (ppm) 1216
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Question #3
>
> At what level does Aluminum and sodium cause problems?
Sodium (kinda of a ballpark number) x 2 = % salt
Aluminum--uh, there's so much aluminum in soil I don't think this
matters--but someone correct me.
>
> Question #4
>
> How does one compare the "Commercial" fertilizers like 5-1-1, 5-10-10 or
> 15-35-15 to this type of numbering sysytem.
>
> Just trying to learn something to new to grow better chiles
>
> Byron
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