Nitrogen is an essential primary nutrient for plant growth and development. With the demand for high growth and yield of plants and the depletion of organics in soil, nitrogen availability in soil has become insufficient. This simple and comprehensive book covers the important and current information regarding rice plant biology and nitrogen metabolism. The book is divided into ten chapters that feature the steps of nitrogen assimilation and utilization in rice plant systems. Apart from describing the steps and pathways of nitrogen metabolism in rice, the book also emphasis the changes taking place due to genotypes and environmental factors and stressors during rice growth and development.