The impact of nitrogen source and crop rotation on nitrogen mass balances in the Mississippi River Basin

Long-term nitrate loss along an agricultural intensity gradient in the Upper Midwest USA

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Nitrate in the Mississippi River and Its Tributaries, 1980 to 2008: Are We Making Progress?

(2011) Lori A. Sprague et al.   ENVIRONMENTAL SCIENCE & TECHNOLOGY

Role of Nitrogen Fertilization in Sustaining Organic Matter in Cultivated Soils

(2011) Jagdish K. Ladha et al.   JOURNAL OF ENVIRONMENTAL QUALITY

Solutions for a cultivated planet

(2011) Jonathan A. Foley et al.   NATURE

Integrated soil-crop system management for food security

(2011) X.-P. Chen et al.   PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA

Effects of catch crops, no till and reduced nitrogen fertilization on nitrogen leaching and balance in three long-term experiments

(2009) J. Constantin et al.   AGRICULTURE ECOSYSTEMS & ENVIRONMENT

The fate of nitrogen in grain cropping systems: a meta-analysis of15N field experiments

(2009) Jennifer B. Gardner et al.   ECOLOGICAL APPLICATIONS

A century of changing land-use and water-quality relationships in the continental US

(2009) Whitney Broussard et al.   FRONTIERS IN ECOLOGY AND THE ENVIRONMENT

Understanding the variability in soybean nitrogen fixation across agroecosystems

(2009) M. E. Schipanski et al.   PLANT AND SOIL

The nitrogen balance of three long-term agroecosystems on a boreal soil in western Canada

(2008) S.M. Ross et al.   AGRICULTURE ECOSYSTEMS & ENVIRONMENT

Transformation of the Nitrogen Cycle: Recent Trends, Questions, and Potential Solutions

(2008) J. N. Galloway et al.   SCIENCE

Spreading Dead Zones and Consequences for Marine Ecosystems

(2008) R. J. Diaz et al.   SCIENCE