Friends with Great Benefits

The work of the humble earthworm is not possible without the hands of many friends! 

Whether you are actively composting or you are just allowing your materials to rot in that special pile somewhere in your backyard, the presence of these moldy, and sometimes spore-like structures might have caught your attention. Their role in the decomposition process is undoubtedly very important.

Organic matter is naturally complex and this complexity cannot be fully unraveled alone by the earthworm, given its lack of teeth or similar functioning appendages.

The rate of organic matter degradation is also dependent in part, on the type and amount of cellulose and lignin which comprise the material. In layman terms the Carbon: Nitrogen ratio.

Saprophytic organisms thrive on dead and decaying organic matter (where would the world be without them?) by solubilizing complex organic compounds into simple sugars, amino acids and nutrients. They ( bacteria and fungi) offer that extra hand which the earthworms need to initiate the decomposition process.

Microorganisms, though small, express themselves in a variety of distinct ways.

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These microbes are able to induce decomposition at the cellular level however without the intervention of macro-organisms to fragment these organic materials decomposition would have been slower. Therefore fragmenting increases the contact surface for microbes and the rate of decomposition.

The grazing activity of earthworms also perpetuates the presence of these beneficial organisms as they are ingested and redeposited throughout the soil or compost via their castings.

All of these beneficial interactions contribute to a healthier soil environment. Furthermore, good soil management practices such as organic mulching will encourage a rich diversity of micro and macro-organisms; whereas bad soil management practices, such as land burning will interfere with these natural processes.

In our subsequent articles, we will take a closer look at how farmers can maintain and promote a mutually beneficial relationship with the soil environment.

 

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