Spatial and temporal trends in soil N-mineralization rates under the agroforestry systems in Bhabhar belt of Kumaun Himalaya,India

To access the process of nitrogen mineralization in soil, the buried-bag technique was used among traditional agroforestry systems in the Bhabhar belt of Kumaun Himalaya. The present study, determined the relationship between various parameters of N-mineralization with agroforestry systems, seasons and soil depths. Season and soil depth have significantly (p??1 month^?1) was observed in agri-silviculture system and lowest (5.67?±?1.68 mg kg^?1 month^?1) in AHS system, while nitrification value was maximum (2.53?±?0.40 mg kg^?1 month^?1) in AH system and minimum (2.23?±?0.37 mg kg^?1 month^?1) in AHS system. The values of net N-mineralization were ranged from 4.03?±?0.53 to 13.29?±?0.44 mg kg^?1 month^?1. The values of inorganic-N and net N-mineralization were significantly more (P?