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25 terms

Ag 2

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