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tbronson_gw

Need practical advice on green manure...!

tbronson
17 years ago

Until now, I've used air-dried cow manure and compost on my market garden (2.5 acres). I want to start green manuring, but I'm still confused. I understand the principles and crop selection, but can't get a handle on how long a green manure crop has to be in to contribute, and what the side effects are. Some questions:

1. At what point in growth does a legume contribute significant nitrogen? For example, can a clover (or another legume) contribute if grown for part of a season, like, if I grow clover for two months, then plow down and add a fall crop?

2. Are there any real, practical negatives to green manure, like reducing available ground moisture, etc, during the season they're grown?

I'm trying to get a practical handle on this, particularly in-season green manuring as opposed to full season or overwinter.

Thanks!

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