EESA01H3 Chapter : chapter notes
31 Oct 2010
School
Department
Course
Professor
Document Summary
N every 5 seconds, somewhere in the world, a child starves to death. Food security: the guarantee of an adequate, reliable, and available food supply to people at all times. N economic, 1/5 of world"s people live on > a day, more than half live on > a day overnutrition: receiving too many calories each day (mainly in developed) Malnutrition: shortage of nutrients the body needs (vitamins and minerals) can lead to disease. Green revolution: methods and technologies to increase crop output per unit area of cultivated land. N extensification (more land) to intesnsification (more productivity from unit of land) N norman borlaug specially bred type of wheat. Industrialized agriculture: applying synthetic fertilizers, chemical pesticides, irrigation, using heavy equipment. Increased demand higher prices and scarcities of basic grains. Pest: any organism that damages crops that are valuable to us. Weed: any plant that competes with our crops.
