Symptoms
Young leaves become uniformly yellowgreen.
Reasons
Molybdenum deficiency
Young plants can show deficiency symptoms if seed potatoes were grown on soils with low Mo content.
Yellowing of leaf blades is similar to nitrogen or sulfur deficiency.
Molybdenum deficiency made worse by
Acid soils
Low pH
Low levels of soil organic matter
Molybdenum is important for
Nitrogen metabolism, pigment and chlorophyll synthesis
