Posts tagged ‘soil’

Soil Microorganisms Dominate the Soil Ecosystem

UK scientists have analysed their soil to get an accurate assessment of soil biology, and changes in soil biology over time.  Their conclusions show that the top 3 inches of soil there are 12.8 quadrillion (12,800 million million) soil microorganisms and that number has  increased by nearly 50% in a decade. Scientists report that the most likely reason for the increase in numbers is warmer, wetter weather conditions which translates directly into warmer, wetter soil micro environments. The theory is that these warm and wet soil environments encourage faster microbial reproduction. Read the article here:

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March 3, 2010 at 8:30 am 4 comments

Identifying Surface Soil Compaction

The top 6-8 inches of soil are approximately 40% clay, which creates management challenges. Surface compaction in the Van Wert County area is commonly seen, but I would argue that surface compaction only plays a role in harming crop development during the emergence stage of a crop. Once the crop is out of the ground, then surface compaction plays less of a role on restricting crop growth and development other than restricting moisture movement from the surface to the subsoil. Subsurface compaction, on the other hand, can prove to be very detrimental to crop growth and development. Especially if the subsurface compaction creates a nearly impervious layer for roots to penetrate.

December 1, 2009 at 8:30 am 2 comments

Powerpoint Presenation on Soil: Investigating Soils

I gave a ‘Soil Evaluations for Septic Systems’ presentation to the Ohio Environmental Health Association on November 14, 2008. The presentation covered the process of conducting a soil evaluation for a septic system, as well as review of key concepts in soil science which affect household wastewater treatment (such as bulk density, porosity, etc). The presentation is available for download and use here:

November 18, 2008 at 9:31 am


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