Polyculture is the cultivation of more than one crop species in various
seasonal or field patterns. - True
Monoculture advantages are which of the following? Select all that apply. - Easier to manage, producer
has to contend with only one set of practices, can be very specific in weed control and seed selection,
industrialized nations have the technology and know how to grow crops well, responsible for producing
very large quantities of food.
Disadvantage of Monoculture crop production systems? Select all that apply. - susceptible to pests,
diseases, and disasters. Lack of diversity means presence of fewer number of natural enemies of plant
pests, no insurance against adversity (weather vagaries) like hail, flood, frost, drought
Polyculture advantage crop production systems? Select all that apply. - Diversity of crops avoids
susceptibility of a single crop to disease and insect damage, greater tolerance to stress and avoidance of
total crop loss, less dependent on nitrogen fertilizers
Disadvantage of polyculture crop production systems? Select all that apply. - Agronomic management is
more complex, greater diversity in host plants may mean greater diversity in diseases and pests,
requires more labor and equipment
Inter cropping, relay planting, and crop rotation are all types of polycultures. - True
Intercropping uses the "three sisters" style of planting. - True
What are the "three sisters"? - corn, beans, squash
Relay cropping (overlap planting) is the cropping system in which one
crop is seeded into another standing crop that is near harvesting - True
One crop is planted before the original is harvested is what type of crop
, Production system? - relay cropping
In crop rotation a deep-rooted crop should be followed by a _______
rooted crop - shallow
In crop rotation a _____ rooted crop should be followed by a shallow rooted crop - deep
Alternate between crops with a _____ root biomass and those with low
root biomass (high root biomass provides food for soil microorganisms). - high
You should include green manure and catch crops to protect from soil erosion and _______________ -
nutrient loss
Include nitrogen-fixing crops and alternate with crops with _______ demand - high nitrogen damaged
Soil is the most important natural resource on planet earth. - True
Soil is defined as... - is a thin layer of mineral matter, organic matter, air and water which surround the
earth in a thin layer giving support and sustenance to plants.
Water covers approximately ______% of the Earths surface - 75%
How much land is left to meet all of our needs? - 10%
Soil provides 4 major functions for plants. select the four. - filters and purifies water and provides water
for plants
anchors roots and supports plants
provides mineral nutrients to plants
provides for gas exchange for plant roots
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