NOTAS COMPLEMENTARIAS SOBRE EOXENOS LABOULBENEI PEYER [ SUPPLEMENTARY NOTES ON E LABOULBENEI PEYER
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Instituto Politécnico Nacional, CD MEXICO, DF, MEX
Abstract
A comparative study of 55 soil samples from a variety of localities and types, by the biological methods of Sackett and of Halversen and Hoge, checked by the chemical techniques of Morgan The Halversen artificial inoculation method gave results slightly