The organic constituents of plant that give structural topography generally contain six broad groups of constituents as given below: (i) Cellulose: Cellulose is the most abundant chemical constituent of a cell. It is a carbohydrate composed of glucose units linked by P-linkages at 1 and 4 carbon atoms of sugars. Total number of glucose units varies from 2000 to 10,000. [...]
In this article we will discuss about the definition of soil fertility. Soil fertility is the sustainable capacity of a soil to produce good yields of high quality on the basis of chemical, physical and biological factors. The three factors are needed to assess soil quality or fertility. Much work has been done on physical, chemical, climatic and cultivation data. [...]
The major external factors that influence the microbial community in soil are: 1. Soil Moisture 2. Organic and Inorganic Chemicals 3. Soil Organic Matter 4. Types of Vegetation and its Growth Stages 5. Different Seasons. Factor # 1. Soil Moisture: Moisture is present in the form of film in soil pores. The amount of water increases with increase in porosity [...]