Water potential of a soil is -0.27 MPa. The water potential of the roots of a pl

Question

Water potential of a soil is -0.27 MPa. The water potential of the roots of a plant growing in the soil is -0.32 MPa. Will water move into or out of the roots under these conditions? Farmer Brown plans on adding fertilizer to his crop. However, he's a little nervous because the last time he used fertilizer many of the plants wilted and some even turned brown and died. Why did this "fertilizer burn" occur in terms of water potential, and what could Farmer Brown do to enable him to add the same amount of fertilizer while being more likely to avoid this problem?

Explanation / Answer

Answer:

1). Water moves from high water potential solution to low water potential solution. So water moves from soil (-0.27) to roots (-0.32).

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