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Project title What is the best way of making sure that fertilizer is applied to a field of crops in a uniform and consistent manner?
Difficulty Level High school
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Description
Mariotte siphons or Mariotte bottles (figure 1) are devices that provide a constant pressure that will deliver a constant rate of flow from closed bottles or tanks. The flow rate will depend upon the head as defined in figure 1 and not on the height of the free water surface. These devices find many uses where a nonchanging pressure is needed. One application in agriculture is for applying liquid fertilizer to field crops. 
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