Just Enough Nitrogen: Perspectives on how to get there for regions with too much and too little nitrogen

Preface

List of contributors

Acronyms and abbreviations

1 Just Enough Nitrogen: Summary and Synthesis of Outcomes

Part I Food and Agriculture

Nitrogen and Food Security

2 Long Term Trends in Agronomical and Environmental Performances of World Cropping Systems: The Relationship between Yield and Nitrogen Input to Cropland at the Country and Regional Scales

4 Influence of Varying Rates of Fertilizers on the Performance of Cacao (Theobroma cacao) Seedlings in the Nursery

5 Assessing Synergies and Trade-offs from Nitrogen Use in Africa

6 Potential of Extensification of European and Dutch Agriculture for a More Sustainable Food System Focusing on Nitrogen and Livestock

Nitrogen Intensification and Biological Nitrogen Fixation in Low-input Systems

7 History of Rhizobia Inoculants Use for Improving Performance of Grain Legumes Based on Experience from Nigeria

8 Producer Knowledge, Attitudes, and Practices for Dry Beans and Biological Nitrogen Fixation in Kamuli District, Uganda

9 Performance of Mwitemania bean under the influence of nitrogen-fixing Rhizobium inoculant, water hyacinth composts and DAP fertilizer in a field infested with Aphis fabae and Colletotrichum lindemuthianum

10 Biological Nitrogen Fixation of Pigeonpea and Groundnut: Quantifying Response across 18 Farm Sites in Northern Malawi

Improving Nitrogen Management in Fertilizers and Manures

11 Biological Determinants of Crop Nitrogen Use Efficiency and Biotechnological Avenues for Improvement

12 Nitrogen Loss when using Organic and Mineral Fertilizers on Soddy Podzolic Sandy-loam Soil in Central Russia

13 Sorghum Response to Nitrogen in Organic Carbon-Categorized Ferralsol and Andosol in Uganda

14 Evaluating Resource Use Efficiency and Stock Balances of Nitrogen and Phosphorus Fertilizer Inputs: The Effect of Soil Supply Capacity in Tigray (Ethiopia)

15 Rice Response to Nitrogen and Supplemental Irrigation under Low Phosphorus and Potassium in Upland Production Systems in East Africa

16 Contribution of Gliricidia sepium Pruning and Fallow to Sweet Corn (Zea mays L. var. rugosa) Yield, Nitrogen Uptake, Release Pattern and Use Efficiency in a Humid Tropical Environment of Malaysia

Part II Nitrogen Impacts on Health, Ecosystems and Climate

Nitrogen Impacts on Health and Ecosystems

17 Further Evidence of the Haber-Bosch - Harmful Algal Bloom (HB-HAB) Link and the Risk of Suggesting HAB Control through Phosphorus Reductions only

18 Human Health Effects of Exposure to Nitrate, Nitrite, and Nitrogen Dioxide

19 Nitrogen Deposition to China's Coastal Seas: Status and Ecological Impacts

20 Anthropogenic Nitrogen Loads to Freshwater: A High-Resolution Global Study

21 Atmospheric Nitrogen Deposition in Spain: Emission and Deposition Trends, Critical Load Exceedances and Effects on Terrestrial Ecosystems

Nitrogen, Climate Change and Trace Gas Enrichment

23 Nitrous Oxide (N₂O) Emissions from Forests, Grasslands and Agricultural Soils in Northern Spain

24 Effect of Climate Change and Crop-year on the Yield and Nitrogen Fertilizer Efficiency in Winter Wheat (Triticum aesti