Chapter 4 Water Management Flashcards
- T/f infrequent, deep soakings of trees and shrubs are preferable to frequent, shallow waterings
True
The most beneficial times to irrigate plants are _________ ________ or _________ __________
Late night or early morning
The ________ rate is the rate at which water soaks into the soil
Infiltration
- Clay soils generally have a greater ________-__________ ___________ than sandy soils, but water percolates through clay soils more slowly.
Water holding capacity
Disadvantages to sprinkler irrigation are high application rates and surface ____________ created by the water hitting the soil surface
Compaction
True/false-in most instances, it is preferable to minimize water irrigation directly to the foliage of plants
True
Name 2 advantages and 2 disadvantages of drip irrigation
Reduces irrigation and surface compaction
Must be moved outward as root system expands
May become clogged
________ _________ is designed to maintain plants during periods of reduced rainfall, supplying only enough water to maintain a desired plant quality.
Minimum irrigation
A measure of the rate of water use by plants and evaporation from soil is known as _____________
Evapotranspiration
Name 5 benefits of using mulches around trees
Moderate temperature extremes, reduce competition from weeds, grasses, keeps mowers away, maintain soil moisture, aesthetically pleasing.
A _______ ______ is a landscape feature specifically designed to collect and hold stormwater runoff.
Rain garden
__________ are materials sprayed on plants to reduce water loss through transpiration
Antitranspirants
Soil probes, ____________, and electronic moisture sensors are used to monitor soil wetness or dryness.
Tensiometers
True/false drought problems can be especially severe following periods of moderate to high soil moisture conditions.
True
Name 3 tree health problems associated with flooding
Root suffocation Soil organisms killed Root collar rot Tree prone to toppling Mineral toxicities
