|
#11
03-12-2013, 06:09 PM
|
|||
|
|||
|
Quote:
I would research Soil Structure away from this forum, but that is the biggest issue with clay soils, especially for those who never let it dry out enough, but got to keep it wet all summer long...
__________________
* Well reasoned rational thought is the ONLY way to prove or disprove anything, rather than the foolish insults of those incapable of putting together the thought processes necessary to accomplish conclusions...  * 
|
|
#12
03-17-2013, 09:42 AM
|
|||
|
|||
|
CEC simply means the resting spot for nutrient ions that are accessible to the roots and are typically 'colloids' of clay, silt and humus...
By definition your red clay SHOULD have lots of CE Sites according to definition, but this article will help to make sense as to why it doesn't... If you'd like to discuss it feel free to PM... http://soils.missouri.edu/tutorial/page9.asp "... Aggregation begins with flocculation of clay particles (platelets) into microscopic clumps called floccules; the cations that are caught between two platelets attract the negative charges on both platelets, binding them together..."
__________________
* Well reasoned rational thought is the ONLY way to prove or disprove anything, rather than the foolish insults of those incapable of putting together the thought processes necessary to accomplish conclusions... *
|
|
#14
03-17-2013, 10:36 AM
|
|||
|
|||
|
I was pointing out that the primary colloids in which CE Sites typically are 1). Clay, 2) Silt, and 3) Humus...
These are the Big 3, by Definition of "What colloids generally function as CE Sites???" And the answer is: ...
__________________
* Well reasoned rational thought is the ONLY way to prove or disprove anything, rather than the foolish insults of those incapable of putting together the thought processes necessary to accomplish conclusions... *
|
|
#15
03-17-2013, 10:40 AM
|
|||
|
|||
|
I may have to ignore the rest of this thread if clay colloids do not make CE Sites under the correct circumstances... My point to be made is Creating The CORRECT Circumstances for the clay to be useful as increasing CEC... so if I stop responding it is becuz once again the conversation will not be allowed to go in that direction... sorry...
__________________
* Well reasoned rational thought is the ONLY way to prove or disprove anything, rather than the foolish insults of those incapable of putting together the thought processes necessary to accomplish conclusions... *
|
|
#17
03-17-2013, 11:41 AM
|
|||
|
|||
|
Quote:
Clays (layer silicates) primarily have a permanent charge, with exception to kaolinite, and secondarily pH dependent. How are you going to "create the correct circumstances" that will have any impact on this permanent charge? Further colloids, by definition, are classified as having a diameter of 0.1 to 0.001 μm (microns) .... silt is 0.002 to 0.05 mm by definition. Now the soil minerals we are concerned about with respect to CEC are layer silicates (clays), amorphous silicates, oxides and hydrous oxides and organic materials. As I have already stated, the only way you can reasonably change a given soils CEC (short of complete removal and replacement) is by increasing the SOM. Do you realize the amount of damage you cause by incorrectly speculating on public forums?
|
 |
| Bookmarks |
«
Previous Thread
|
Next Thread
»
| Thread Tools | |
| Display Modes | |
Linear Mode
|
|
