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Ammoniacal liquor as a fertiliser—Effect of various constituents on the activity of microbiological flora
Author(s) -
Marsden Arthur,
Stansfield I. L.
Publication year - 1959
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740100401
Subject(s) - nitrification , ammoniacal nitrogen , thiocyanate , ammonium , soil water , chemistry , environmental chemistry , flora (microbiology) , pulp and paper industry , environmental science , nitrogen , soil science , biology , inorganic chemistry , organic chemistry , bacteria , engineering , genetics
An apparatus has been devised, based on the work of Audus, for circulating under controlled conditions various types of liquor and solutions of ammonium salts of equivalent strength over duplicate samples of various soils. At regular intervals analyses were made to determine the progress of the nitrification and also the concentration of thiocyanate and phenols. Work over a period of several years showed that in the case of the soils examined nitrification proceeded satisfactorily and that within about a quarter of the time required for nitrification the thiocyanate and phenols had disappeared. This is in keeping with the results of plot trials and leads to the general conclusion that, when clean ammoniacal liquor is used as a fertiliser applied directly to the ground, there is no build‐up of toxic substances in the soil, from the point of view of nitrification.