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Focus on Phosphorus. Johan Malgeryd Swedish Board of Agriculture. Focus on Phosphorus…. … is a pilot project within the advisory project Focus on Nutrients … was started in 2006 in order to test measures against phos-phorus losses from farmland in practice Aims: - PowerPoint PPT Presentation
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Focus on Phosphorus
Johan Malgeryd
Swedish Board of Agriculture
Focus on Phosphorus…
… is a pilot project within the advisory project Focus on Nutrients
… was started in 2006 in order to test measures against phos-phorus losses from farmland in practice
Aims:To develop an approach to decrease phosphorus losses from agriculture within a catchment area in the most efficient way
To practically test if the measures we know today could influence phosphorus losses from the arable land
Focus on Nutrients…
… is a national advisory project focused on reducing the environ-mental impact of Swedish agriculture… was started in 2001 in southern Sweden and has gradually expanded northwards … has more than 7 700 members… covers ca 23 % of the arable land in Sweden… supplies farmers with individual advice free of charge… has an annual budget of ca 35 MSEK during the period 2010-2013Aims:
To inspire and motivate farmers and advisors to use knowledge in order to decrease the environmental impact and increase the profitability of their farms.To help farmers contribute to reach the Swedish environmental objectives Zero eutrophication, Natural acidification only, A non-toxic environment and Reduced climate impact.
Focus on Nutrients – Geographic area and members
Focus on Phosphorus - Approach
within 3 delimited catchments (pilot areas) with well-known history when it comes to phosphorus losses test various methods to identify those fields or parts of fields where the risk for phos-phorus losses is biggest
in cooperation with the concerned farmers develop proposals on measures that could be inserted in order to decrease the losses.
try to get farmers to implement the measures that are applicable in practice. The measure work is backed up with advice and when necessary also with other instruments, e.g. economic compensation.
follow up the effects of the measures taken through measure-ments in runoff waters.
Focus on Phosphorus – Pilot areas
&
&
&U8
N33
E23
±0 50 10025 Kilometers
Produktionsområden
Götalands mellanbygder
Götalands norra slättbygder
Götalands skogsbygder
Götalands södra slättbygder
Svealands skogsbygder
Svealands slättbygder
Characteristics of the pilot areas
Area Main catchment Produc-tionarea1
Size, ha
Arable land, %
Pasture, %
Forest and other land2, %
Domin.soil type3
Measur-ingperiod4
U8 Norrström Ss 5255 62 - - Styv lera 1993-
E23 Söderköpingsån Gns 744 53 10 37 Styv lera 1988-95, 2002-
N33 Genevadsån Gss 650 93 - - Mellanlera 1991-
What have we done so far?
Selection of pilot areas
Contacts with farmers
Measurements and other data samplingCultivation inventory
Measurements of water flow and precipitation
Water sampling and water analyses
Collection of other data
Calculation of concentrations, transports and source distribution
Risk assessment
Counseling
Cooperation with other projects
How do we move forward?
Applied for and received funding for another three years of operation (2010-2012).
Totally 4 MSEK during three years (excl. the working hours of the project manager). Advisory service is funded via the regular budget of Focus on Nutrients.
Also measures against nitrogen losses in area N33 i Halland.
Cooperation with other projects in area E23.
Are currently taking up measures, including structural liming in area U8 and E23.
Some conclusions
1. The pilot areas chosen have functioned well.2. The farmers’ attitude has in most cases been experienced as positively
cautious.3. The communication with the farmers does not function in the same way
in all areas.4. Farmers experience the cultivation inventory as time-consuming paper
work.5. With manual (time scheduled) water sampling, there is a considerable
risk that one underestimates the phosphorus losses.6. The flow forecasts from SMHI have been of good help in order to co-
ordinate the synoptic water sampling with flow peaks in area E23.7. The individual advice given within Focus on Nutrients has, in most
cases, been experienced as positive.8. The farmers have implemented measures that are directly profitable,
e.g. reduced purchase of mineral fertilizers.9. Structural liming is a measure we currently have high hopes of.10. For certain bigger measures (e.g. establishment of wetlands) there are
many legal, economic and hydro-technical aspects that need to be investigated before the measures can be implemented in practice