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Plant and Soil 1213 Exam 4 questions & correct answers rated A+ passed
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Plant and Soil 1213 Exam 4 questions & correct answers rated A+ passed
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Plant and Soil 1213 Exam 4Plants need water in order to maintain _____, _____, and ______. - correct answer ✔✔maintain turgor,
mineral uptake, and photosynthetic activity.
______ is the first step for germination. - correct answer ✔✔water
Plant water use is influenced by ______ and ______. - correct answer ✔✔the plant; the environment
What are the characteristics that plant water use influences? - correct answer ✔✔-crop size
-crop growth stage (emergence/flowering)
-leaf size and shape
-photosynthetic pathway
plant water use is governed by the rate of _____. - correct answer ✔✔transpiration
What is calculated using the equation
(dry matter produced)/(water use)? - correct answer ✔✔water use efficiency
How does evapotranspiration differ from transpiration? - correct answer ✔✔Evaporation considers
water lost from the soil and the plant; transpiration only considers water used by the plant
Define transpiration - correct answer ✔✔the loss of water through stomata
True or False: Low rates of evapotranspiration are associated with windy days - correct answer ✔✔false
What are the two types of gravity flow irrigation? - correct answer ✔✔Furrow irrigation and Flood
irrigation
, ______ irrigation takes water from a channel to beds through tubes through the field. - correct answer
✔✔furrow
_____ irrigation is when water is left on the field through the growing season until right before harvest -
correct answer ✔✔flood
What is the advantage of gravity flow irrigation? - correct answer ✔✔low initial cost
What are the disadvantages of gravity flow irrigation? - correct answer ✔✔high labor cost, land leveling
needed, and high water losses
What are the two types of sprinkler irrigation? - correct answer ✔✔center pivot and lateral move
What are the advantages of sprinkler irrigation? - correct answer ✔✔-uniform application
-little land preparation
-low labor cost
What are the disadvantages of sprinkler irrigation? - correct answer ✔✔-high initial costs
-energy needed to pressurize system
-high evaporative losses
What are the two types of microirrigation? - correct answer ✔✔-subsurface drip
-surface drip
Which is the irrigation system delivers water to the roots? - correct answer ✔✔microirrigation
Which type of irrigation applies low volumes of water at precise locations? - correct answer
✔✔microirrigation
What are the advantages of microirrigation? - correct answer ✔✔-very efficient
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