Abstract
DR. RUSSELL begs the whole question in two lines of his letter in NATURE of January 16, when he terminates para. 7 with “the increased gain in plant growth on such highly heated soils can be largely attributed to this cause,” viz. to the formation of ammonium and other simple soluble nitrogen compounds on heating soils to 170°.
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FLETCHER, F. Soil Fertility. Nature 91, 160 (1913). https://doi.org/10.1038/091160b0
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DOI: https://doi.org/10.1038/091160b0
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