Enhancing nutrient use efficiency: Concepts, methods, and management interventions for crops and cropping systems” is a comprehensive book which has a compilation of topics related to enhancement of nutrient use efficiency of various crops and cropping systems. Nutrient use efficiency is a measure of how efficiently plants use the available mineral nutrients to produce economic produce. Although it depends on the ability of plants to take up the nutrients from the soil, management practices have a key role to intervene the use efficiently. This book addresses in detail multifaceted approaches to enhance the nutrient use efficiency. The book is intended to provide scientists, farmers, students and policymakers with insights into holistic approaches to nutrient use efficiency in major crops and cropping systems. Improving nutrient use efficiency is a prerequisite to reducing production costs in the wake of escalating cost of agricultural inputs in farming besides minimizing environmental contamination. Soil physical management is the foremost strategy to enhance the nutrient use efficiency. Hand held devices are popular among the farmers for nitrogen management in rice in several parts of the country, besides slow release nitrogenous fertilisers. Experiences from Long term fertilizer experiments and Soil Test Crop Response Correlation are of immense use to understand the nutrient dynamics in soil and in turn designing practices for higher use efficiency. Besides describing the concepts and methods of nutrient use efficiency, management practices for dry land crops and cropping systems, cereal based cropping systems, rainfed pulses based cropping systems, soybean based cropping systems, sugarcane based cropping systems, cotton based cropping systems, tobacco and oil seed based cropping systems, rapeseed-mustard based cropping systems and spices based cropping systems are also dealt in the book and would serve as a resource guide for enhancing nutrient use efficiency in various crops and cropping systems.