Re: Clay soil


Bill Shear wrote:
> 
> My guess is that alfalfa pellets would be slightly acidic as they decay.
> But for the most part, organic matter acts as a buffer in the soil and does
> not change pH much. 

Hmmmm. Bill, is it not correct that most organic matter as it decomposes
has an acidifying effect on the soil? I found that the Ph of my raised
beds was more acid that the surrounding native soil (down to 5.9 in some
spots) so I added some oyster shell as a buffer to keep the Ph in a more
neutral range. I had used redwood soil conditioner as the primary
organic matter additive.

John                     | "There be dragons here"
                         |  Annotation used by ancient cartographers
                         |  to indicate the edge of the known world.

John Jones, jijones@ix.netcom.com
Fremont CA, USDA zone 8/9 (coastal, bay) 
Max high 95F/35C, Min Low 28F/-2C average 10 days each
Heavy clay base for my raised beds.



Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index