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2 cards from this section. Quick, good the night before a test.
What does IW stand for in the IW/CPE ratio?
Think about what is being measured in terms of irrigation.
What is the main goal of irrigation scheduling?
Consider what we need to do to help crops thrive.
What does IW stand for?
Think about the context of irrigation itself.
True or False: The IW/CPE ratio is only relevant for deep-rooted crops.
Consider if the ratio can apply to various plants.
A farm has a cumulative pan evaporation of 150mm, and the farmer selects an IW/CPE ratio of 0.4. Calculate the required irrigation water.
Apply the IW/CPE formula.
Given that effective scheduling can save 30% more water, estimate water savings if a farmer normally uses 200mm of water for irrigation.
Calculate 30% of the normal water usage.
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