What is the deficiency for nitrogen in crops?

Nitrogen deficiency in crops is characterized by stunted growth, yellowing of older leaves (chlorosis), and reduced yields. Since nitrogen is essential for protein synthesis and overall plant development, its lack can lead to poor photosynthesis and decreased vigor. In severe cases, plants may exhibit delayed maturity and increased susceptibility to pests and diseases. To correct nitrogen deficiency, farmers often apply nitrogen-rich fertilizers to enhance crop health and productivity.