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Author Question: All of the following are commonly accepted rules for determining whether an element is essential ... (Read 33 times)

jc611

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on: Jul 21, 2018

All of the following are commonly accepted rules for determining whether an element is essential
  EXCEPT ____.


 
 

a. a lack of the element stops plant growth or reproduction
  b. a shortage of the element can only be corrected by supplying that element
  c. the element needs only to be in trace supply
  d. the element is directly involved in plant nutrition



Question 2

In determining how much herbicide to use on a soil, growers must consider the cation exchange
  capacity because colloids adsorb pesticides as well as nutrients.


 
  Indicate whether the statement is true or false.


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jomama

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Reply #1 on: Jul 21, 2018
Answer to Question 1

C

Answer to Question 2

T


jc611

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Reply 2 on: Jul 21, 2018
Great answer, keep it coming :)

T4T

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Reply 3 on: Yesterday
Excellent

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