Beschreibung:
This study, based on a literature review and simulations, shows the efficiency of cover crops at catching nitrate in most situations. It also analyzes both the negative impacts they can have and the ecosystem services they can provide: soil protection against water erosion, carbon sequestration in soils, impact on greenhouse gas emissions, contribution to weeds, pests and diseases control, etc.
There is no similar book studying precisely the role of cover crops in leaching nitrate in such a large range of agronomic conditions
Foreword.- 1. Study context and methodology.- 1.1. Fallow period: definition, management practices and regulatory aspects.- 1.2. Study objectives and approach.- 2. Main lessons drawn from the study of the literature.- 2.1. Cover crop management techniques.- 2.2. Nitrate and water during fallow periods.- 2.3. Effects of cover crops on erosion, physical soil properties and carbon balance.- 2.4. Biotic effects of cover crops on weeds, microflora and fauna.- 2.5. Conclusion: a rich but incomplete analysis of the literature.- 3. Main lessons drawn from the simulation study.- 3.1. Objectives of the simulation study using a dynamic crop model.- 3.2. Methodology of the three parts of the simulation study.- 3.3. Generic and specific lessons drawn from the simulation study.- 3.4. Discussion of study results.- 4. Conclusions and outlook.