Browsing by Author "Vidana Arachchi, L.P."

Filter results by typing the first few letters
Now showing 1 - 2 of 2
  • Thumbnail Image
    Item
    Minimizing drought damage on coconut in major soil types
    (Coconut Research Institute. Lunuwila, 1996/1997) Vidana Arachchi, L.P.
  • No Thumbnail Available
    Item
    Role of Gliricidia sepium on physical improvement of gravelly soil
    (Coconut Research Institute. Lunuwila, 1996) Vidana Arachchi, L.P.; Liyanage, M. De S.
    The Andigama soil series, which is widespread in coconut lands, is known to have poor physical characters restricting palm growth and yield in the intermediate zone of Sri Lanka. This study was carried out to investigate the possibility of improving degraded soil conditions of Andigama series by intercropping with Gliricidia sepium under coconut. Gliricida sepium was established in a 45 year old coconut plantation in double rows of 2m x 1m and arranged in a Randomized Block design with four replicates. The effect on soil physical characters such as texture, bulk density, aeration capacity, moisture retention and root distribution pattern of Gliricidia sepium were studied. Results revealed that clay faction cemented with gravel significantly increased (P0.05)bulk density (1.62 +-0.07). it acts as a physical barrier and reduced readily available water fraction in B horizon. the available water fraction in A, AB and B horizons decreased by 66