Activity of Soil Microorganisms During the Growth of Sweet Corn (Zea Mays Saccharata Sturt) in the Second Planting Time with the Application of Fertilizers and Biochar - Dermiyati, .; Department of Agrotechnology Faculty of Agriculture, University of Lampung, Jl. Sumantri Brojonegoro No. 1, Bandar Lampung. Indonesia 35145 (UNIVERSITY OF LAMPUNG, 2018)