Abstract
WHEN freshly collected cow-dung (containing 0.368 per cent nitrogen and 7.5 per cent carbon) is mixed with soil and exposed to sunlight daily for six hours in dishes, nitrogen fixation is observed. Thus the nitrogen content of a mixture containing 500 gm. soil and 100 gm. cow-dung rose from 0.0905 per cent on July 27 to 0.14 per cent on November 4, 1936.
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DHAR, N., MUKERJI, S. Nitrogen Fixation with Cow-Dung. Nature 138, 1060 (1936). https://doi.org/10.1038/1381060a0
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DOI: https://doi.org/10.1038/1381060a0
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