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OCR-text (abbyy)
Gibbel, /Kristian/ Gunnar
The relation of the soil nitrogen to nodule
development and fixation of nitrogen by cer-
tain legumes.
8:o New Brunswick,New Jersey 1925
= Bulletin^ New Jersey agricultural experi-
ment stations. Bulletin 436...
OCR-text (abbyy-crop)
___Giöbel, /Kristian/Gunn ar
The relation of the soil nitrogen to nodule
development and fixation of nitrogen by cer-
tain legumes.
8:o New Brunswick,New Jersey 1926
= Bulletin, New Jersey agricultural experi-
ment stations. Bulletin 436...
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