Agronomic Crossword 007

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Across
  1. 4. the name given to pipe(s) which go from the water source to the control valves. In our larger systems, we will also have sub-mains.
  2. 5. the plant has extracted all available moisture from the soil that it can; there is still moisture in the soil but it is not available to the plant; the point where the plant suffers substantial damage because of lack of water (up to and including death)
  3. 9. loss of water from the soil both by evaporation from the soil surface and by transpiration from the leaves of the plant growing on it
  4. 10. a rotating ball with a hole thru the center of it. Turned so hole aligns with water flow to open.
  5. 11. movement of water up through a plant
  6. 12. A valve used to isolate all or part of the irrigation system for repairs, maintenance, or winter shut down (winterization).
  7. 13. a measurement of pressure.
  8. 15. the part of the sprinkler head that the water comes out of
  9. 17. in a plant, converts oxygen and glucose into water and carbon dioxide releasing energy for use
  10. 18. water available for plant uptake
  11. 19. the point where the plant requires deep watering
Down
  1. 1. optimum amount of water in the soil; 50/50 air and water in pore space
  2. 2. the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water
  3. 3. A measurement of water application. Given in the depth of water applied to the soil. Measured in inches per hour (in./hr.)
  4. 6. all available pore space is full; some water will drain out of the root zone before roots can absorb it
  5. 7. a device that prevents contaminated water from being sucked back into the water source (important with potable water systems)
  6. 8. sliding gate moves up and down when operated. Mostly used on isolation valves.
  7. 14. flow of water from aboveground into the subsurface
  8. 16. the name given to pipe(s) which go from control valves (zone valves) to the irrigation heads.