hort.net Seasonal photo, (c) 2006 Christopher P. Lindsey, All Rights Reserved: do not copy
articles | gallery of plants | blog | tech blog | plant profiles | patents | mailing lists | top stories | links | shorturl service | tom clothier's archive0
Gallery of Plants
Tech Blog
Plant Profiles
Mailing Lists
    Search ALL lists
    Search help
    Subscription info
Top Stories
sHORTurl service
Tom Clothier's Archive
 Top Stories
New Trillium species discovered

Disease could hit Britain's trees hard

Ten of the best snowdrop cultivars

Plant protein database helps identify plant gene functions

Dendroclimatologists record history through trees

Potato beetle could be thwarted through gene manipulation

Hawaii expands coffee farm quarantine

Study explains flower petal loss

RSS story archive

Re: Soil pH

I tend to forget about things like buffering capacity when the issues
don't come up for several years. Thanks for mentioning it Jim. Our soil
here has plenty of clay and I do my best to incorporate organic matter,
so my buffering capacity is probably pretty good. Consequently, my 9 or
10 pH tap water doesn't pose a great problem. But I think my plants much
prefer something more acidic. From "Something to Grow on" (Cornell):

Buffering capacity is the ability to withstand rapid pH fluctuation. The
greater the buffering capacity, the greater the quantity of acid or base
which must be incorporated with a material to alter the pH.

 Soil types having low buffering capacities include sandy soils containing little clay or organic matter. 
 Soils exhibiting a high buffering capacity are usually composed of large quantities of mineral clay and organic matter.
neIN, Zone5

-------------- Original message -------------- 

> Donna wrote: 
> > Hum... rainwater should be acidic... how about distilled water? 
> > 
> > Donna 
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 
> Acidic yes, buffered no. Buffering refers to the capacity of a solution 
> to maintain its pH when acid or base is added. Distilled water is the thing 
> chemistry labs use when an accurate measurement is needed. I have seen 
> distilled water in gallon or half gallon jugs at no great cost. 
> -jrf 
> -- 
> Jim Fisher 
> Vienna, Virginia USA 
> 38.9 N 77.2 W 
> USDA Zone 7 
> Max. 105 F [40 C], Min. 5 F [-15 C] 
> --------------------------------------------------------------------- 
> To sign-off this list, send email to majordomo@hort.net with the 

To sign-off this list, send email to majordomo@hort.net with the

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

 © 1995-2017 Mallorn Computing, Inc.All Rights Reserved.
Our Privacy Statement