This article provides notes on the Carbon: Nitrogen (C: N) ratio in soil. It is the intimate relationship between organic matter and nitrogen contents of soils. The ratio of the weight of organic carbon to the weight of total nitrogen in a soil or organic material is known as C: N ratio. The importance of C: N ratio in controlling [...]
After reading this article you will learn about:- 1. Process of Humus Formation 2. Modern Views of Humus Formation 3. Concept. Process of Humus Formation: The formation of humus is strictly a biochemical process and rather complicated one. "Humus is defined as a complex and rather resistant mixture of brown or dark brown amorphous and colloidal substances modified from the [...]
This article provides short notes on clay-humus complex. It is evident that various clay minerals can bind humus substances through some linkages known as clay-humus complex. Many investigators consider that the complexes between humus substances and clays are probably formed by bridging through the exchangeable cations like Ca, Mg and Al. Besides this, they also consider that humus substances penetrate [...]