Evaluation of a kit for estimating organic matter concentrations in botton soils of aquaculture ponds.
The Hach CEL/700 Organic Matter Laboratory provided estimates of organic carbon concentrations in pond soil samples comparable to those obtained by the commonly-used Walkley-Black method. Dry ashing at 350-400 C tended to overestimate soil organic matter concentrations, and this procedure requires too much equipment and laboratory expertise for use on most aquaculture farms. The Hach kit can provide practical aquaculturists a simple and reliable method for measuring organic matter in pond soils. Samples from brackishwater ponds should be treated with mercuric sulfate to prevent chloride interference and overestimation of organic matter.
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Main Authors: | QUEIROZ, J. F., BOYD, C. E. |
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Other Authors: | EMBRAPA-CNPMA. |
Format: | Artigo de periódico biblioteca |
Language: | English eng |
Published: |
1998-12-10
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Subjects: | Organic carbon, Methods, Evaluation, Techniques, deterioration, freshwater, organic matter, quality control, water quality, |
Online Access: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/13081 |
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