The deficiency of calcium is observed in the absence of vitamin ...............

Plants grow in a magnesium-deficient soil,but what happens if urea is added to the soil?

Deficiency of which element causes liver necrosis and muscular dystrophy?

Chlorosis occurs when plants are grown in

Premature leaf fall is due to deficiency of

On the basis of symptoms of chlorosis in leaves,a student inferred that this was due to the deficiency of nitrogen. This inference could be correct only if yellowing of leaves appeared first in