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Author Question: At what light intensity during the day are supplemental lamps generally turned off? What will be ... (Read 15 times)

lracut11

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on: Jul 22, 2018
At what light intensity during the day are supplemental lamps generally turned off?
 
  What will be an ideal response?

Question 2

Why is a high soluble salt level troublesome for plants?
 
  What will be an ideal response?


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bimper21

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Reply #1 on: Jul 22, 2018
Answer to Question 1

When the natural light intensity reaches twice the level that is being
provided by the supplemental lamps.

Answer to Question 2

Water moves from zones of low to high solute concentration. As the salt
level of the root substrate rises, its solute concentration rises relative to the root
solute content. This slows water uptake into the plant and can eventually stop
water uptake.


lracut11

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Reply 2 on: Jul 22, 2018
:D TYSM

duy1981999

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Reply 3 on: Yesterday
Excellent

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