1Indian Institute of Soil Science, Bhopal, Madhya Pradesh (462 038), India
2Dr.Panjabrao Deshmukh Krishi Vidyapeeth, Akola, Maharashtra (444 104), India
3Birsa Agricultural University, Ranchi, Jharkhand (834 006), India
4Central Research Institute of Jute & Allied Fibres, Barrackpore, West Bengal (700 120), India
5Orissa University of Agriculture & Technology, Bhubaneshwar, Odisha (751 003), India
6Tamil Nadu Agricultural University, Coimbatore, Tamil nadu (641 003), India
*Correspondence to E-mail: wanjariravi@gmail.com
Online published on 3 April, 2014.
On-going long term fertilizer experiments results illustrated that nutrient management options have influenced the biological properties of soil. Imbalanced fertilizer application adversely affected the biological state of the soil.Across the agroecological zones (AEZ), the balance nutrient application significantly improved the count of microorganisms i.e. bacteria, fungi, actinomycetes; their enzymatic activities and also active pools of nutrients. However, NPK+hand weeding treatment has edge over treatment 100% NPK with herbicide in terms of microbial count, microbial biomass carbon, dehygrogenase activities. The use of NPK along with farmyard manure has further enhanced all the stated soil biological properties of alfisols, vertisols and inceptisols. In alfisols, lime amendment has beneficial effect on biological health.
Microbial diversity, microbial biomass carbon, dehygrogenase activities
