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Lecture 6

Lecture 6

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Department
Geography
Course
GGR107H1
Professor
Joseph Leydon
Semester
Fall

Description
LECTURE 6October 20 2009 GMOs and Transgenics IPopulation Food Supply Dilemma How to increase food supply increase land area increase land intensitySolutionScientific Agricultureintensify production on existing land Application of Scientific Agriculture Cereal Productionincrease intensity through plant manipulation select for desirable traitsespecially yield reduce growing timemore efficient use of machinery increase yield of foodallows for two harvests Consequences increase food outputincreased pressure on landextracting more nutrients from the soilfertilizer requirements pesticides and herbicides irrigation machineryincreased specialization Monocultural farmsregionsspecialized grow only 1 crop ex wheat Reduced seed diversitybc of genetic engineeringbuy seeds from
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