• chonglibloodsport@lemmy.world
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    5 months ago

    Is there any evidence that living legumes make the nitrogen they fix available to other plants nearby? I thought they locked it up in root nodules and it only becomes bioavailable if you chop and drop the legumes so that the nodules break down and release nitrogen into the surrounding soil. Otherwise the legumes are just going to use the nitrogen for their own growth.

    • stom@lemmy.dbzer0.com
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      5 months ago

      Think they talked about this in the most recent season of Clarkson’s Farm. One point they are measuring the availability of nitrogen in the soil and they see that it has increased.

      They planted a mixed crop of corn and beans together and it seemed to have a positive benefit.

      • chonglibloodsport@lemmy.world
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        5 months ago

        Did they test the soil and plant a control crop of corn only in nearby similar conditions?

        When it comes to gardening I’ve heard countless stories of people trying some intervention and declaring “it works for me” without ever having tested the conditions or using a control. Those kinds of results can be safely ignored as unscientific.

        Heck, one thing I’ve noticed with gardening is that even if you attempt to plant a bunch of crops under identical conditions (as best as you can manage) there’s so much variability that you get widely varying yields from one plant to another for completely unknown reasons.

        • stom@lemmy.dbzer0.com
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          5 months ago

          Yes. Well worth watching the episode if you’re interested. Hell, the whole series is very interesting.