[Compost application to gardens and parks: Trials with leek and St. John's wort [Hypericum beanii, Allium porrum]]

acondicionadores del suelo allium ampeloprasum calidad compost compostage composting composts conditionneur de sol cosecha cultivation cultivo danemark denmark dinamarca enfouissement enterrado fertilisation fertilizer application harvesting horticultura horticulture hypericum incorporation parc public pratique culturale public parks quality soil conditioners soil texture soil types textura del suelo texture du sol tipos de suelos type de sol