Ag 2 – Agricultural Test Answers – Flashcards
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more than half the ____ in the US and canada have been lost to urban and agricultural development, but the recent _____ subsidizes landowners to restore or protect remaining areas
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wetlands/ wetlands reserve program
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the US agency charged with slowing soil degradation is the
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natural resources conservation service
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the conservation reserve program pays farmers to
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stop cultivating highly erodible cropland
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in queensland, australia, cactus moths
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effectively cleared non-native prickly pear cactus from rangeland
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which of the following best describes integrated pest management
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biocontrol measures, crop rotation, habitat diversification
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relative to agriculture, insects are usually
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essential pollinators and predators for sustainable systems
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why did the indonesian government support IPM for agriculture in 1986
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pesticide subsidies were costing money, causing pollution and decreasing yields
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which of the following is true
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in 2010 one in four adults in the US is obese and 3 out of 5 are overweight
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green revolution techniques
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have increased crop yields but may not be sustainable
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during the past half century, global food production has ____ world population growth
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grown at a faster rate than
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norman borlaug, who passed away in 2009, pioneered the development of
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high-yield wheat
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monoculture
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is an agricultural practice of growing large stands of a single species
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seed banks are important for
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protecting genetic diversity
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what was the impact of the green revolution on developing countries
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there were massive increases in production due to the use of crops better suited to advanced agriculture
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which types of people in the united states are most prone to over-nutrition
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those in the lower class
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what agricultural system would be most susceptible to diseases or pests
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monocultures
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what would be considered a monoculture
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a 100-acre field all of which is planted with the same variety of corn
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what is true for how the term weed is used in agriculture
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a weed is any organism that competes with our crops
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biological control can have unintended consequences when
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the biological control agent becomes invasive and affects nontarget species
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over time, pesticides become less effective. this is because
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pests can evolve defenses against pesticides
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how is biological control used for battling pests
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it is a strategy that used the predators of crop pests for pest control
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what is true of pollinators in modern agriculture
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while bees are the most important pollinators, crop plants are also pollinated by wasps, moths, butterflies, birds, beetles, flies and even bats
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the giant foxtail is a plant species that competes with soybean growth on farms. the giant foxtail can be considered a
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weed
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what method of pest control operates on the principle that the enemy of ones enemy is ones friend
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biocontrol
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which of the following statements is true about diversity of our crops today
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the diversity of our craps has decreased with the green revolution
