On-farm energy, Volume: 7.1, Issue- March 2005

4 Editorial 5 Energy use in agriculture: an overview David Pimentel and Marcia Pimentel 7 Planting to catch more sunlight Reddy Naganagouda, Zhu Shuijin and V.C. Patil 8 Biodigesters in ecological farming systems T.R. Preston 13 Improving organic fertilizers Luis...