Bonsai Study Group Forum

General Category => General Bonsai Discussion => Topic started by: John Kirby on January 21, 2013, 02:26 PM

Title: Roots, the 'rhizosphere' and how do we relate this to bonsai?
Post by: John Kirby on January 21, 2013, 02:26 PM
Most conversations about bonsai soil are anectdotal and based on limited discussions of dynamic processes. A favorite one in recent years has been the general area of CEC. CEC and the ability of roots to compete along an ion gradient to transport ions across a plasma membrane/cell wall and then secrete those ions in to the xyloem. these Ions and water are destined to be moved up the xylem along an internal ion gradient that is developed due to water loss by transpiration or itilization during metabolic/photosynthetic activity and by water pressure in the roots, think of water going up in to a sponge. Here is a link to a very interesting, peer reviewed, piece on root architecture and the heterogenous  structure and function of roots;

http://www.planta.cn/forum/files_planta/7_502.pdf (http://www.planta.cn/forum/files_planta/7_502.pdf)

This is written with jargon, and scientific termimology, if something doesn't make clear sense after googling specific words, ask, if you don't get it many of the rest of us won't either.

We can then proceed from this to a specific conversation on the function within and ecology of a bonsai pot.
Title: Re: Roots, the 'rhizosphere' and how do we relate this to bonsai?
Post by: akeppler on January 21, 2013, 04:51 PM
Science made easy


http://www.soilsecretsblog.com/2012/01/understanding-importance-of-cation.html (http://www.soilsecretsblog.com/2012/01/understanding-importance-of-cation.html)
Title: Re: Roots, the 'rhizosphere' and how do we relate this to bonsai?
Post by: John Kirby on January 21, 2013, 04:59 PM
Thanks Al, that is a piece of the puzzle! And from someone selling a product.
Title: Re: Roots, the 'rhizosphere' and how do we relate this to bonsai?
Post by: akeppler on January 21, 2013, 08:04 PM
Thanks Al, that is a piece of the puzzle! And from someone selling a product.
Wow...rapant cynicism. California does 35 billion in agriculture a year to feed a hungry world within a closed clay soil system. You bet your ass they know soil chemistry and how to get every fertilizer ion there is at the least cost and the most effective means.

 To quote a guy; Use it or not, your choice.