GGR287H5 Lecture Notes - Energy Returned On Energy Invested, Polyculture, Wheat
Document Summary
Human the sea, moves on the land but can digest - 20,000 plants out of > 400,000 have eaten almost anything that flies in the air, swims in. Main features monocultures - annual plantings of the same crops synthetic chemicals - fertilizers, pesticides fossil fuels mechanization. Major changes over time - cropping practices, cultivated varieties. Partial replacement of human labor by animal, wind, awater, fossil fuels. Irrigation & fertilization moderated/removed water shortages & lack of nutrients. Growing (new) variety of crops, either by multi-cropping & rotations (cereals & leguminous crops) < length growing season resistance to pests and disease. Consumption: fewer toxings easier digestions better nitrition longer shelf life enhanced freshness. >>>intensive "organic" faming history recycling & feeding of human & animal waste carp ponds green manure & cyanobacterial n fixation. Charatertistics of insect agriculture monocultures indoor production (controlled environment) antiobiotics (pesticides) weeding herding chemicals kill predators. "breeding" to increase productivity cutting body parts or preventing their growth with.