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Agricultural Methods

QuestionAnswer
What is agriculture? manipulating the natural environment to produce food desired by humans
Shifting Agriculture uses polyculture (planting mixture of plants) or cutting down and burning vegetation for crops
Reason for using Labor-Intensive Agriculture economics
Monoculture more efficient, fossil fuels replace manpower, requires large areas of flat land and energy
Macronutrients nitrogen, phosphorus, and potassium
Micronutrients boron, zinc, and manganese
Pesticide any chemical used to kill or control populations of unwanted pests
Insecticides controls insect population
Fungicides controls fungi
Rodenticides controls mice and rats
Herbicides controls plant pests
Biocides kills a large variety of organisms
Target organisms pests that affect crops
Non-Target organisms what many pesticides kill as a side effect
Persistent pesticides remain active long term, stable
Nonpersistent pesticides break down quickly, more toxic to humans
How is most food in the world grown? on mechanized farms that use energy instead of manpower for tilling, planting, and harvesting crops
What does mechanized monoculture depend on? control of pests by chemical means
What are people doing in response to persistence and biomagniication? seeking out pesticide-free alternatives to raising food
What seeks out less use of chemicals and better stewardship of the soil? alternative, sustainable, and organic agriculture
Integrated pest management requires a complete understanding of an organism's biology to develop pest control methods that use little to no pesticides
Created by: ila2309
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