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.

Bibliographic Details

Main Authors:	QUEIROZ, J. F., BOYD, C. E.
Other Authors:	EMBRAPA-CNPMA.
Format:	Artigo de periódico biblioteca
Language:	English eng
Published:	1998-12-10
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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