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J. Keith Syers

J.Keith Syers is Vice-President for International Relations, Naresuan University, Phitsanulok, Thailand.
Agriculture and the Nitrogen Cycle

Agriculture and the Nitrogen Cycle

Assessing the Impacts of Fertilizer Use on Food Production and the Environment

Nitrogen is an essential element for plant growth and development and a key agricultural input-but in excess it can lead to a host of problems for human and ecological health. Across the globe, distribution of fertilizer nitrogen is very...