The lower leaves turn yellow and in some crops they quickly start drying up as if suffering from shortage of water, stunted growth, leaves & fruits shedding & whole plant becomes yellow, are deficiency symptoms of:_________?
Correct answer: D. Nitrogen
- A. Potash
- B. Both a & c
- C. Calcium
- D. Nitrogen
Explanation
Nitrogen is mobile in the plant, so deficiency symptoms appear first in older lower leaves as yellowing, followed by stunted growth and premature leaf or fruit shedding. Potassium deficiency can also cause yellowing and drying, but the full symptom pattern chiefly indicates nitrogen deficiency.
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