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Does sewage sludge amendment to soil enhance the development of Silver birch and Scots pine ?

Sewage sludge can be used to improve forestry soil properties, because it is rich in phosphorus, nitrogen and organic material and, thus, can enhance the growth of tree seedlings in poor quality soils. The study was performed on a site amended

A field experiment on the use of biogeotextiles for the conservation of sand-dunes of the Baltic coast in Lithuania

. There was a need to protect boundaries (walls) of the blowout from deflation and to encourage sand-dune accretion. The field experiment described in the paper was performed to establish vegetation on the ‘walls’ and base of the blowout to stabilize the feature