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PLNT 1213 questions with complete solutions A+ rated
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PLNT 1213 questions with complete solutions A+ rated
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PLNT 1213aquifer - correct answer ✔✔An underground formation that contains groundwater, used for irrigation
purposes
evapotranspiration - correct answer ✔✔the evaporation of water from soil plus the transpiration of
water from plants
gravity flow irrigation - correct answer ✔✔flood or furrow irrigation; water is pulled from a ditch or pipes
and flows from one end of the field to the other
microirrigation - correct answer ✔✔subsurface and surface drips; water is dripped from small holes in
tubes or tape
salinization - correct answer ✔✔A process in which mineral salts accumulate in the soil, killing plants
sprinkler irrigation - correct answer ✔✔center pivot and lateral move; water is sprayed down onto crops
water use efficiency - correct answer ✔✔how efficiently a plant uses water
water use efficiency equation - correct answer ✔✔(dry matter produced) / (water consumed)
why plants need water - correct answer ✔✔maintain turgor, mineral uptake, photosynthetic activity
dry matter produced and water consumed - correct answer ✔✔what factors regulate plant water use
efficiency?
sprinkler, gravity flow, microirriation - correct answer ✔✔what are the three irrigation methods
discussed in class? (compare contrast?)
, biological pest control - correct answer ✔✔introduction of an animal/insect/microbial species that is a
natural enemy of the pest (goats, wasps w/ hornworm)
chemical pest control - correct answer ✔✔using pesticides to kill or prevent pest infestation (sprays)
cultural pest control - correct answer ✔✔managing the growing enviornment using cultural practices
(crop rotations, row spacing)
mechanical pest control - correct answer ✔✔using physical methods to control pests (tillage, plastic)
disease - correct answer ✔✔loss of the ability to properly function as a result of prolonged irritation by a
pathogen
pathogen - correct answer ✔✔species that is able to cause disease
weed - correct answer ✔✔plant growing where it is not wanted
integrated pest management - correct answer ✔✔series of pest management evaluations and decisions
that consider the agroecosystem as a whole
susceptible host, favorable enviornment, virulent pathogen - correct answer ✔✔what conditions must
be met for disease to occur?
pesticides are not 100% effecitive, the survivors of a spray are stronger/more resistant, they breed a
more resistant offspring (fast natural selection) - correct answer ✔✔how does pesticide resistance
develop?
ways pesticide resistance can be prevented - correct answer ✔✔apply the proper rate, apply in ideal
conditions, use multiple modes of action, utilize cultural practices when possible
multiple locations, multiple samples - correct answer ✔✔what is a good method of crop scouting for
pests?
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