east Scotland

Seedbanks of arable east Scotland 2007

The lack of a baseline on which to assess differences between farming preferences and soil types necessitated this extensive study of seedbanks in representative fields in the east of Scotland from Moray, through Aberdeenshire, Angus, Fife and the Lothians to the Borders. Soil samples were collected in 2007 from more than 100 fields. The aims were to see whether seedbanks differed in relation to soil, latitude, crop rotation and management inputs. The information will contribute as a reference and baseline along with data on soil physical and microbiological properties, vegetation, agronomy and yield as part of the RERAD workpackage on Sustainable Crop Systems.

The methodology, using the emergence method,  was similar to that used in the FSEs. Soil samples were taken by field teams from SCRI and SAC and laid out in trays in the glasshouses at SCRI in Dundee. The first flush of seedlings, mainly of spring-germinators and generalist species was measured for several months after sampling. In the autumn of 2007, the soil in each tray was remixed and emergence was again measured, this time capturing the autumn-germinators. The advantage of this substantive database is the wide range of associated measurements, much more than in the FSEs, that should enable us to quantify the seedbank's dual role of weed burden and base of the arable food web.

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