Improving and maintaining soil quality for enhancing and sustaining agricultural production is of utmost importance for India’s food and nutritional security. Permanent Manurial Experiments (PMW) are ideal sites for studying management induced variability in crop production and soil health. The biological activity of a soil is the function of number of organisms present in soil and their physiological efficiency. Soil microbial diversity is one of the most important microbial parameters in soil. Cassava is grown throughout the tropics, where it is the fourth most important staple food crop in terms of Kcal consumed per day. | Soil biological health tuber yield and starch content under permanent manurial experiment on cassava
