Effects of different olive-grove management systems on the organic carbon and nitrogen content of the soil in Jaén (Spain)

AN EXAMINATION OF THE DEGTJAREFF METHOD FOR DETERMINING SOIL ORGANIC MATTER, AND A PROPOSED MODIFICATION OF THE CHROMIC ACID TITRATION METHOD

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Methods of soil analysis. Part 2. Chemical and microbiological properties.

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Methods of Soil Analysis 2d ed., pt. 1; Physical and Mineralogical Methods

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