Beans As Nitrogen Gatherers
I grow string beans in my rotation to restore nitrogen, but I see it
stated that not all beans are valuable for this purpose. Are the common
bush varieties nitrogen gatherers?
Probably they are all doing it in various degrees. Pull up or dig up a
few plants when growing actively, not too early nor too late in the
season, and look for nodules on the roots. Number and size considered
together will measure their activity in this line in your soil.
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