>Anyone have info on the 2nd year N contribution from legumes? I had a
field that last year had food grade soybeans (yielded 45 bu.) on the one
side and sweet corn that was no-till planted into vetch/crimson clover
on the other side. In the fall I seeded both sides of the field with
rye. Now this spring, the side that had the vetch/clover last year is
noticeably more lush. The beans gave some N I'm sure, but the legume
gave more apparently. I just thought this observation was interesting
and wondered if anyone else had similar findings.
Steve, do I take it that in the soy bean (also legume) case, the crop
remained standing until energy was all transferred to the beans and the
beans removed from the field; whereas on the other side you removed the
grain crop (leaving trash to work in?), but the legume remained in the field
and (may have been turned in with the trash?). If that was how things went,
you would leave a much different net balance between the two parts of the
field, in much more than N, I would have thought.
Dennis
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