[IBC] Soil layering checklist
This issue is an example of one that needs to be addressed in the context of
an ongoing teacher/student relationship so that the fullness of the practice and its related practices can be properly communicated, BUT since it seems that we're too quick here to casually dismiss misunderstood practices as irrelevant, let me offer the following stuff in hopes of inspiring more curiosity. This is just a way to get some thinking more about the wider and important scheme of issues associated with soil layering. In the context where soil layering came from, it is recognized that... - the soil components are very coarse and granular. - the soil components do not generally contain any organic media. - the optimum grain size for the lower root structure is not optimum for the soil surface function. - the cycle of moisture application/absorbtion/evaporation needs to be fairly predictable and mangageable. - there are seasonal conditions that are specific to that region of the world. - the mode of fertilization is with organic-based cakes (which degrade over time - adding organics to the soil). - the basis of in-pot horticulture assumptions are based on the specifics of the soil medium (no organics). - the degredation of fertilizer into the soil has to be controlled to a certain extent (and managed afterwards with necessary techniques). - the optimum grain size for the functional roots is not generally very aesthetically pleasing (in most cases). - the optimum grainsize for the functional roots is not conducive to the support of decorative moss when needed (and the manner in which it is best applied). - proper repotting technique does not unduly disturb the separation/distinction between grain size layers in the pot. - roots colonize areas of larger particles differently than areas of smaller particles. - given the small acommodations, the roots need to generally be relegated to a specific area of the pot (over a predictable span of time). Now, these are not really "answers" to the question of why or why not to layer soil, but they reference important factors that eventuate in the practice. I suggest looking more deeply into these issues/practices in order to discover the relevant issues and need for soil layering. Sometimes the issue is a small one, but somewhat important nonetheless. You may deem one or more of them to be irrelevant, but the fact that other do not is no reason to believe them worthless. Hope this helps to some degree. Kind regards, Andy Rutledge www.andyrutledge.com/ zone 8, Texas ************************************************** ****************************** ++++Sponsored, in part, by Jarbas Godoy ++++ ************************************************** ****************************** -- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ -- +++++ Questions? Help? e-mail +++++ |
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