Mitigation Options for Phosphorus (MOPS)

Water runoffThe MOPS project site at Loddington, Leicestershire is run by Lancaster University. The farm is managed by the Allerton Project.

The soils at the site consist of Hanslope and Denchworth series clays on a steep slope. In order to minimise losses of sediment and phosphorus we used three treatments:

  • Contour cultivation
  • Minimal tillage
  • Beetle banks

We also intercepted tramlines to look at the impacts of tramlines on phosphorus and sediment losses.

Methods

Surface runoff was collected in drains at the foot of hill slope length plots. Runoff was collected after rainfall events and flowed down the pipes to the collectors.

The runoff was subdivided by tipping bucket splitters, which allow between ½ and ⅛ of the sample to be collected in tanks. This was sub-sampled and analysed for total phosphorus, phosphorus <0.45µm, sediment content, and nitrogen.

MOPS1 ran from 2005 to 2008 and MOPS 2 from 2008 to 2013.

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