EXPERIMENTAL GRASS SECTIONS ON HIGHWAY SLOPES. FIRST RESULTS

PLANCHES EXPERIMENTALES D'ENGAZONNEMENT SUR TALUS ROUTIERS - PREMIER BILAN

Two experimental sections were sown with grass on motorway slopes in the southern suburbs of Paris. The slopes were cuttings slopes without any loam cover, facing south west or south. The soil was a highly plastic, acid clay and a slightly clayey basic sand with a very low level of plasticity. The two identical sections were used to compare the behaviour of 17 seed mixtures and 19 pure species planted in small lots. The article describes the progress observed over 15 months when it appeared that festuca rubra, festuca ovina duriuscula and festuca pseudovina were very satisfactory whatever the type of soil. Among the mixed varieties, lolium perenne established itself rapidly and made a quick cover for the soil but interfered with the growth of other species, even when it formed only a small proportion of the seeds planted. The grass mixtures containing festuca rubra, festuca ovina duriuscula and agrostis tenuis grew best if not as quickly as lolium perenne. /TRRL/

  • Corporate Authors:

    Laboratoire Central des Ponts et Chausees (LCPC)

    Boulevard Lefebvre 58
    Paris Cedex 15,   France  F-75732
  • Authors:
    • ARNAL, G
  • Publication Date: 1977-3-4

Language

  • French

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00183494
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Dec 29 1978 12:00AM