THE DETERMINATION AND EXTRACTION OF AVAILABLE SOIL ORGANIC COMPOUNDS

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Abstract
A bioassay technique is utilized to establish the availability of selected phenolic acids in soils. The amounts of phenolics available in these soils are then compared to the amounts extracted using a neutral EDTA solution and an alkaline procedure. The results of these experiments indicate that the EDTA procedure is successful in extracting only those phenolics that are available, but the alkaline procedure is not so restricted. A bioassay technique is utilized to establish the availability of selected phenolic acids in soils. The amounts of phenolics available in these soils are then compared to the amounts extracted using a neutral EDTA solution and an alkaline procedure. The results of these experiments indicate that the EDTA procedure is successful in extracting only those phenolics that are available, but the alkaline procedure is not so restricted. © Williams & Wilkins 1980. All Rights Reserved.