Objective
Since the awareness of the impact of the nitrogen oxides and nitrous oxide on the environment, it became evident that more research was needed to ascertain the contribution of soils to the total budget. Soils represent a more significant source of nitrogen oxides and nitrous oxide than was initially estimated. For agricultural areas where fertilization is intensive, release rates of nitric oxide can be comparable to those of urban areas. There is still a lot of uncertainty concerning the nitric oxide and nitrous oxide emissions. Therefore, a study was carried out of the gaseous nitrogen emissions from an agricultural site.
Nitric oxide and nitrous oxide emission measurements have been taken over 2 years using the cover method. As the method for nitrous oxide was not ready for application in the field, emphasis was put on the nitric oxide emission measurements. Experiments were carried out in close collaboration with the nitrogen-15 experiments (NITROSOLAIR). The fate of spring applied fertilizer was followed during the autumn winter period on a bare plot and a plot with green manure. The nitrogen-15 experiments showed that there was a considerable risk of leaching of nitrate in the fallow plots whereas this risk was smaller in the green manure plots. The nitric oxide emission measurements showed that the nitric oxide emissions were much higher for the green manure plot than for the bare plot. Nitric oxide emissions were closely related to precipitation events.
A green manure during the autumn winter period prevented nitrate from leaching to the groundwater but, an increase in gaseous nitrogen losses to the atmosphere is implied.
The influence of different organic conditions on the internal nitrogen cycle and the nitric oxide emissions have been studied. The nitric oxide emissions were highest immediately after fertilizer application and total fertilizer loss amounted to 1.3% in the parcels where farmyard manure was applied. The correlation with applied fertilizer masked the influence of the other soil parameters.
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Programme(s)
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
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Funding Scheme
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
1015 Lausanne
Switzerland
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.