Description
Nitrogen (N) is potentially one of the most complex elements on the Earth. It is necessary for all biological activity, but creates negative impacts on water and air quality. There is a balancing act between deficiency and surplus and the forms of N available further complicate our understanding of the dynamics. Biological fixation provides some plants with N supply while others are totally dependent upon N being available in the soil profile for the roots to extract. Nevertheless, the demand for N will increase because the human population with its increasing growth requires more protein and thus more N. Understanding the global N cycle is imperative to meeting current and future nitrogen demands while decreasing environmental impacts.
This book discusses availability, production, and recycling of N in air, water, plants, and soils. It features information on N impacts to soil and water quality, management of N in agroecosystems, and techniques to maximize the use efficiency while minimizing the risks of leakage of reactive N into the environment.
This volume in the Advances in Soil Science series is specifically devoted to availability, production, and recycling of N with impact on climate change and water quality, and management of N in agroecosystems in the context of maximizing the use efficiency and minimizing the risks of leakage of reactive N (NO-3, N¬2O) into the environment.
Table of Contents
Cycling and Pathways of Nitrogen (N). Global N Cycle and Anthropogenic Perturbation. N Transformation in Soil. Organic N in Soil. Inorganic N in Soil. Transport of N in Soil and Water. Emission of N2O into the Atmosphere. N Processes in Wetlands. N in Agroecosystems. N Budget in Soil. N Availability in Soil and Plant Uptake. Biological N Fixation by Legumes. Biological N Fixation by Cereals and Grasses. Nitrification in Soil. Denitrification in Soil. Agronomic Management of N. Soil-Specific Application of N Fertilizer. Crop Monitoring Technology of N. Manure Management. Recycling of N in Industrial and Municipal Waste. N and Environmental Quality. N and Water Quality. N and Climate Change. Modeling N. Dynamics in Soil. N Deposition. The Way Ahead. Economic Implication and Policy. Forgotten Facts about N. Research and Development Priorities.
