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Topics > Biology > Botany

	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
	Main link	Click here to view all details of this science project (Cached)
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.
Materials
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Brief Instructions
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