Micronutrient Deficiency in Crops: Symptoms, Diagnosis and Correction Micronutrient deficiency in crops can be easy to notice and difficult to diagnose correctly. Yellowing between leaf veins, stunted growth, malformed young leaves, shortened internodes or poor flowering may indicate a nutrient shortage, but similar symptoms can also result from disease, salinity, root damage, drought, waterlogging or unsuitable soil pH. The FAO defines soil fertility as the ability of soil t