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Soil and Composting: What Makes Good Brix? Good Soil

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Forum: Soil and CompostingReplies: 4, Views: 95
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dahlianut
Calgary, AB
(Zone 3a)

October 16, 2008
6:42 PM

Post #5679344

This topic started as a result of darius' article on Brix and soil
http://davesgarden.com/guides/articles/view/1670/

The discussion started here. http://davesgarden.com/community/forums/t/913319/
CajuninKy
Biggs, KY
(Zone 6a)

October 21, 2008
3:39 AM

Post #5697756

I gather the refractometer tells you if the Brix is low. ow do you know what to add to get it higher in each particular instance?
garden_mermaid
San Francisco Bay Ar, CA
(Zone 9b)

October 21, 2008
4:03 AM

Post #5697835

That's what we're studying here Cajun! How do we know what to feed the plant when its brix is low? I just started a thread with references to alternative soil testing laboratories. A good place to start is with a soil test by a lab familiar with William Albrecht and Carey Reams work on soil fertility. Another possibility is to measure the pH of the plant sap, and then use Dr. Tanio's chart to see which group of nutrients may be missing. One can then do a test application of a weak solution of the nutrient and then re measure the brix. This may no be ideal but it would be a step towards learning to recognize what our plants are telling us.


BTW, I'm adding "BRIX:" as a prefix to the thread topic for any new threads related to this subject.
CajuninKy
Biggs, KY
(Zone 6a)

October 21, 2008
4:07 AM

Post #5697851

Does the refractometer measure the PH or does one need another apparatus for that?
garden_mermaid
San Francisco Bay Ar, CA
(Zone 9b)

October 21, 2008
4:24 AM

Post #5697896

You'll need another apparatus or a roll of litmus paper. The litmus paper, aka pH Hydrion or pH papers are the less expensive method. I'm hoping that as I get more experience with the testing that I will also be observing some other signs that can be used to select the right nutrients. We've lost a lot of knowledge by moving to conventional chemical ag. Now we get to learn it all over again with the help of instruments. *sigh*

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