Irrigation Science Education for the Early Grades › Forums › Volume Two › Learning Progression “D”: EARTH AND SPACE SCIENCE › Lesson D-10. The Water Cycle and Its Ramifications › Irrigation This topic has 0 replies, 0 voices, and was last updated 1 year, 5 months ago by Bernard Nebel. Viewing 0 reply threads Author Posts June 3, 2019 at 8:27 am #7596 Bernard NebelKeymaster Much of our crop production depends on irrigation. The amount of water used for irrigation far exceeds that for municipal use. Irrigation water is not treated. Type into your browser: irrigation images Also: center pivot irrigation images Author Posts Viewing 0 reply threads You must be logged in to reply to this topic.