Environmental Science 1021F/G Lecture Notes - Lecture 7: Urban Sprawl, Multiple Cropping, Pesticide Resistance
24 Mar 2016
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Over 1billion people with problems due to malnutrition. Over 1billion people with problems due to over nutrition. Chemicals produced during the war used for agriculture. Planting more than one crop in given year. Cut down the trees, plant where they were (slash and burn) Not sustainable, 3 years would be stretching it, 5yrs move on. +reducing amounts of inputs less fertilizer use less water. +better avor most products harvested when not ripe, don"t get avor from ripening on plant. +tolerate more herbicides control more weeds weeds take resources away from our crops! No labeling laws in north america for gmo. Sh gene in tomato could be potential allergen. You can"t use the herbicide to kill the weed any more! Farmer has corn crop, round-up ready (gmo herbicide resistant) One year, one weed has natural random mutation that makes it resistant. That one weed reproduces, now thousands of resistant weeds. Gmo doesn"t cause resistance, reliance on the herbicide does.
