Please use this identifier to cite or link to this item:https://hdl.handle.net/20.500.12259/92300
Type of publication: Straipsnis kitose duomenų bazėse / Article in other databases (S4)
Field of Science: Aplinkos inžinerija / Environmental engineering (T004)
Author(s): Misevičienė, Stefanija
Title: Variation of organic matter concentrations in stream water in manure fertilized fields
Is part of: Research for rural development 2018 : annual 24th international scientific conference proceedings / Latvia University of Life Sciences and Technologies. Jelgava, 2018, vol. 1
Extent: p. 149-154
Date: 2018
Note: eISSN 2255-923X
Keywords: BOD7;concentration;drainage water;ecological status;surface water
Abstract: The article provides the research data on the variation of organic matter in the Jaugila Stream, which flows through drained fields fertilized with organic fertilizers. The aim of the research was to determine the effect of manure application in drainage basin to the changes of organic matter concentration in the Jaugila Stream. Water samples for chemical analysis were taken once a month from the drainage water and the river. The samples from the river were taken upsream and downstream manure fertilized fields and the drainage water – from the outlets of the drainage system, which drains the fertilized area. Water analysis was performed by the Analytical Laboratory of Chemical Analysis of the ASU Water Research Institute. BOD7 was determined by titrometric method. The research has shown that a greater impact on the increase of BOD7 concentrations in the Jaugila Stream was due to the stream water, saturated with the organic matter, flowing from the upstream areas, rather than the drainage water flowing into this stream from manure fertilized area. The assessment of BOD7 concentrations according to the water quality requirements for surface waters determined that in most cases the water of the Jaugila Stream, both in above and below fertilized areas, was in a very good or good ecological status. The impact of manure fertilized areas on the organic matter concentration in the stream was determined to be minimal, as the statistical analysis of the data has shown that the difference between BOD7 concentrations above and below fertilized areas is negligible
Internet: http://www2.llu.lv/research_conf/proceedings2018_vol_1/docs/LatviaResRuralDev_24th_2018_vol1.pdf
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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