Simulation of nitrate movement in undisturbed soil columns

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dc.contributor.authorMochoge, B. O.
dc.date.accessioned2014-10-07T08:31:09Z
dc.date.available2014-10-07T08:31:09Z
dc.date.issued1984
dc.descriptionDOI: 10.1016/0167-8809(84)90010-0en_US
dc.description.abstractIn order to simulate the behaviour of nitrate movement in soils, two loessal soils were used which differed in their physical and chemical fertility. Undisturbed soil columns of 30 cm in length and 15 cm diameter were sampled. An unsaturated steady-state water flow in the columns was established and maintained by a Darcian flow of 5 cm solution/day. The nitrate fertilizer (tagged) was applied in solution form to the top of columns and in one lot. The study took place at 4 and 23°C in the laboratory. The results show that there is good agreement between computed and measured curves. (This was achieved by the curve-fitting approach.) This demonstrates that measured curves can easily be described by simple computer models. However, to be able to merge the two curves, one has to take into consideration the physical and chemical characteristics of the soil. These factors have great influence on the transport of nitrate and other ions in soils.en_US
dc.identifier.citationAgriculture, Ecosystems & Environment Volume 11, Issue 2, May 1984, Pages 105–115en_US
dc.identifier.issn0167-8809
dc.identifier.urihttp://ir-library.ku.ac.ke/handle/123456789/11369
dc.language.isoenen_US
dc.publisherElsevier Massonen_US
dc.titleSimulation of nitrate movement in undisturbed soil columnsen_US
dc.typeArticleen_US
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