Ammoniacal liquor as a fertiliser—Effect of various constituents on the activity of microbiological flora
✍ Scribed by Arthur Marsden; I. L. Stansfield
- Publisher
- John Wiley and Sons
- Year
- 1959
- Tongue
- English
- Weight
- 497 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0022-5142
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✦ Synopsis
Abstract
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.