Iron deficiency starts when it is
A. < 55 ppm
B. 55 - 60 ppm
C. 60 - 65 ppm
D. 80 ppm
Answer: Option A
Solution(By Examveda Team)
Iron is a micronutrient and is required by plants in small amounts. Most of the annual plants require fe on the order of 1 to 1.5 lb Fe per acre.The deficiency of Iron starts when it is less than 55 ppm.
Iron deficiency starts with a yellowing of the leaves in between the dark green veins, giving the leaves a spidery look. After some time, the leaves become whitish and start to die back, eventually resulting in stunting and drying back of the entire plant.
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