Demonstrate Nitrogen Nodulation and Roller Crimping
At 6:35 in
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What happens here
The host digs up the roots of a legume (winter pea) to showcase the visible nodules, explaining that these are sites of atmospheric nitrogen fixation. He clarifies that this fixed nitrogen is stored within the plant and will be released into the soil when the plant decomposes. He then simulates the termination process using a roller crimper. This method involves pushing the cover crop over and crimping its stems every 5 inches, effectively killing the plant without disturbing the soil. This creates a dense, protective mat on the soil surface.
Goal: Examine the roots of legumes for nitrogen-fixing nodules and demonstrate how a roller crimper terminates cover crops to release these stored nutrients and create a protective mulch layer.
Tools and materials
- Shovel
- Legume Cover Crop
What they say
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What they say
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