After reading this article you will learn about:- 1. Formation of Acid Soils 2. Characteristics of Acid Soils 3. Control 4. Lime Requirement. Formation of Acid Soils: Soil microorganisms and plant roots respire to form carbon dioxide, which is also produced when organic matter decomposes. This carbon dioxide reacts with water to form carbonic acid that reacts with the insoluble [...]
After reading this article you will learn about the beneficial and harmful effects of soil micro-organisms. Beneficial Effects of Soil Micro-Organisms: Plant and animal residues are broken down by the soil fauna and flora which prevent unwanted accumulation of fresh organic material. Secondary complex organic forms of nutrients are converted to the simple inorganic forms. The stability of soil aggregates [...]
This article throws light upon five types of micro-organisms present in soil. The types are: 1. Nematodes 2. Protozoa 3. Rotifera 4. Mycorrhizae 5. Lichens. 1. Nematodes: They are also called threadworms or eelworms. They are mainly microscopic in size and are the most abundant animals (maximum number is 50 per gm.). Nematodes live mainly in the water film that [...]