Upload NowAfter reading this article you will learn about the nature and properties of humus. Nature of Humus: Humus is highly colloidal and amorphous in nature. Moreover, its surface area and adsorptive capacity are much higher than that of clay colloids. The cation exchange capacity (CEC) of silicate clays ranges from 8 to 150 C mol […]
Nature and Properties of Humus–Discussed !
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Humus in Soil: Synthesis and Colloidal Characteristics
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After reading this article you will learn about the synthesis and colloidal characteristics of humus in soil. Synthesis of Humus: Humus is a heterogeneous mixture of complex organic compounds. The bulk of these compounds have resulted from decomposition and synthesis. The organic residues which undergo breakdown and transformation are complex in nature, containing carbohydrates, proteins […]
Decomposition of Organic Matter in Soil
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(A) Decomposition of Soluble Substances: Sugar and water-soluble nitrogenous compounds are the first to be decomposed as they offer a very readily available source of carbon, nitrogen and energy for the microorganisms. Thus, when glucose is decomposed under aerobic conditions, the reaction is as under: Sugar + Oxygen → Carbon dioxide + Water When the […]