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> Vineyard workers usually chop or burn these cuttings and return them into the soil

At least in the case of chopping and returning to the soil, the nutrients are being recycled, available for the vine to use next season. Aren't you going to harm their nutrient cycle by taking the cuttings away?

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Another great question. Thanks for taking the time to read my post.

Larry Williams, a professor at UC Davis did a lot of work on this. He found that canes are not a significant contributor to vine nutrient status. Only 2% of the nitrogen that falls to the ground in canes ends up back in the vine the next year.

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