HORTICULTURE

Detailed explanation-1: -A lack of N means a lack of chlorophyll content in plants, and chlorophyll gives vegetation its vibrant green color. This is why nitrogen deficiency at early stages reveals in lighter greens. Then, a nitrogen deficiency causes green leaves to turn yellow, starting from older ones that fade prematurely.

Detailed explanation-2: -Slow growth and uniform yellowing of older leaves are usually the first symptoms of nitrogen (N) deficiency. Nitrogen-deficient plants produce smaller than normal fruit, leaves, and shoots and these can develop later than normal. Broadleaf foliage in fall may be more reddish than normal and drop prematurely.

Detailed explanation-3: -Sulphur. Sulphur is a component in the formation of chlorophyll. Deficiencies result in yellow leaves and stunted growth.