BMGT 220 Lecture Notes - Lecture 3: Urban Ecosystem, Food Security, Desert Pavement

• School: University of Maryland
• Department: Business and Management
• Course: BMGT 220
• Professor: Dr.Progyan Basu

Document Summary

Prevent food waste (developed) and food loss (developing) - 40% *characteristics of industrial agriculture: intensive tillage- used to loosen soil, improve drainage, faster root growth. But not as good for nutrients: monoculture- large scale, intensive, efficient use of equipment. Going to have many pests/disease easier more risk: mineral fertilizer application- reduces food insecurity, provides essential nutrients to crops, uniform application. Run off eutrophication of water ways, nitrous oxide emissions: irrigation provide adequate water supply, improve farm yields. Irrigation uses 70% of freshwater worldwide, increases pesticide and fertilizer leaching from fields: chemical pest and weed control- kills plant pests and pathogens. Kill natural enemies, poisoning, pesticide resistance: genetic modification/manipulation select for desirable characteristics, prevent disease, promote resistance. Increasing dependence on big corps: animals in agriculture = intensify animal production, improve efficiency and productivity. Animal rights violations, increased disease pressure, growth hormones. Agro ecosystem - use food and the environment to improve human well being.