Moderate
The toxicity level of Zn (mg/kg) in plants suggested by some workers is___________________?
Correct answer: C. > 400 mg kg-1
- A. > 50 mg kg-1
- B. > 10 mg-1
- C. > 400 mg kg-1
- D. None of these
Explanation
Plant zinc toxicity is commonly associated with tissue concentrations above about 400 mg kg⁻¹, although the precise threshold varies with plant species and growing conditions. The lower figures given are generally within or near adequate ranges rather than a broad toxicity threshold.
Last updated
Practise Soil Science
377 free Soil Science MCQs from Agriculture, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Agriculture questions like this
Agriculture is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.