Yellow colouration of the lower leave of a growing maize plant may be due to deficiency in
Answer Details
Yellowing of the lower leaves of a growing maize plant may indicate a deficiency in nitrogen. Nitrogen is an essential nutrient for plant growth and helps with the production of chlorophyll, which gives leaves their green color. When a plant lacks nitrogen, it can result in yellowing of the lower leaves first as the plant prioritizes its use of available nitrogen to maintain growth of the upper leaves. To correct the issue, nitrogen fertilizers can be applied to the soil to supply the plant with the necessary nitrogen.