In this article we will discuss about:- 1. Sources of Soil Organic Matter 2. Composition of Organic Residues 3. Decomposition 4. Factors Affecting the Rate 5. Role 6. Maintenance. Contents: Sources of Soil Organic Matter Composition of Organic Residues Decomposition of Organic Compounds in Soil Factors Affecting the Rate of Decomposition Role of Organic Matter Maintenance of Organic Matter in [...]
After reading this article you will learn about:- 1. Meaning of Organic Matter 2. Origin of Organic Matter 3. Nature and Composition. Meaning of Organic Matter: Soil organic matter consists of decomposing plant and animal residues. In addition to these materials, soil organic matter contains living and dead microbial cells, microbially synthesized compounds and a number of derivatives produced as [...]
After 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 (P+) kg-1, whereas the CEC [...]