IDSB02H3 Lecture Notes - Lecture 9: Cation-Exchange Capacity, Genetically Modified Food, Genetically Modified Organism
20 Apr 2017
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Idsb02: lecture 9 - agricultural environments and development. Dependence on multinational corporations and export crops. Agriculture is the main consumptive human activity for many natural resources. Agriculture is particularly a source of environmental issues surrounding water. It"s a key consumptive human activity for many natural resources: It"s also a significant contributor to greenhouse gases due to land conversion. Fertilizers more than double quantities of n and p entering the biosphere Rise in pesticides, synthetic fertilizers, irrigation, and high yielding varieties, plus agricultural research, extension, and infrastructural development. Allowed food production to enable, or keep pace with, worldwide population growth. The package of new seeds, techniques, and inputs raised yields upwards of threefold focused on wheat and maize than to rice and tubers. Most pronounced increases in yields in human history. 50% of developing country populations had adequate food in the 1960"s. India adopted a green revolution breeding program for rice and became a major exporter.
