Nutritional Problems And Their Causes Quiz
9 Questions
| Attempts: 53
Test your knowledge about the four most common nutritional problems and their causes.
Questions and Answers
- 1.
Is it true or false that increasing fertilizer will always make plants grow faster?
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Fertilizer is not "food". Applying excess fertilizer will lead to salt burn, or toxicities of individual nutrients.Rate this question:
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- 2.
Which problem is this most likely to be?
- A.
Low pH
- B.
High pH
- C.
Insufficient fertilizer
- D.
Excess fertilizer
Correct Answer
C. Insufficient fertilizer -
- 3.
Which problem is this most likely to be?
- A.
Low pH
- B.
High pH
- C.
Insufficient fertilizer
- D.
Excess fertilizer
Correct Answer
B. High pH -
- 4.
Which problem is this most likely to be?
- A.
Low pH
- B.
High pH
- C.
Insufficient fertilizer
- D.
Excess fertilizer
Correct Answer
A. Low pH -
- 5.
Which problem is this most likely to be?
- A.
Low pH
- B.
High pH
- C.
Insufficient fertilizer
- D.
Excess fertilizer
Correct Answer
D. Excess fertilizer -
- 6.
When the pH of the growing medium is high, iron becomes more soluble. Is this statement true or false?
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Iron is less soluble at high substrate-pH, especially above pH 6.5. Iron deficiency in plants is therefore a common problem at high pH.Rate this question:
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- 7.
When overall fertilizer level is low, then symptoms can be corrected by applying more nitrogen. Is this statement true or false?
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Although adding more nitrogen will help, there are 12 or more essential plant nutrients than could be limiting. So adding a complete fertilizer, rather than just nitrogen, is needed if overall fertilizer level is low.Rate this question:
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- 8.
In most situations, the best management practice is to minimize leaching and have a moderate fertilizer level. Is this statement] true or false?
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The more leaching that occurs, the most potential waste of fertilizer and water occurs. This increases cost and the runoff of nutrients into the environment. The only situations where leaching is required is if too much fertilizer is applied, there are a lot of dissolved salts in the irrigation water such as sodium or chloride, or the irrigation delivery system is very uneven so leaching is required to ensure all plants receive adequate water.Rate this question:
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.JPG "Which problem is this most likely to be?")
 and calibrachoa (C, D) showing iron deficiency at high pH (7_0).JPG "Which problem is this most likely to be?")
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
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Current Version
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Mar 20, 2022Quiz Edited by
ProProfs Editorial Team -
Sep 09, 2014Quiz Created by
PaulFisher1
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