Study on the Rapid Determination of Organic Matter Content in Organic Raw Material

doi:10.3969/j.issn.1000-7091.2012.z1.068

Abstract

Abstract: In order to determine organic matter content in organic raw material rapidly and precisely， the deternining method of organic matter in organic manure ( NY-2011 ) was regarded as a standard method． That was the Potassium dichromate volumetric method by the boiling water bath heating． It was improved by the oven heating insteadof the boiling water bath heating． At the same time the oven heating temperature and heating time were studied bythe oven heating oxidation． The results showed that two methods of oven heating 30 min /100℃ and 10 min /175℃had the same accuracy and precision compared with the standard method． But they were efficiency， rapidity andpracticality．

Key words: Organic raw material, Organic matter, Rapid determination

CLC Number:

S141

TANG Yu-xia, WANG Hui-min. Study on the Rapid Determination of Organic Matter Content in Organic Raw Material[J]. ACTA AGRICULTURAE BOREALI-SINICA, doi: 10.3969/j.issn.1000-7091.2012.z1.068.

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