the Growth Conditions of Green Lawn of Agrostis stolonifera L. cv. Yuexuan No.1 in Different Matrix
Abstract:The green lawn of Agrostis stolonifera L.cv.Yuexuan No.1 was established in matrix of sand in the autumn in Guangzhou. Peat was mixed with sand in accordance with volume ratio 0, 1%, 2.5%, 5%, 10% to thickness 5cm and 10cm respectively. The green lawn of biomass, weight of grass cutting, lawn density, root length, turf color and the time of the lawn completed were researched. The results show that the physical shape of matrix of the treatment of volume ratio 2.5% is moderate, the porosity is 33.26%, ventilation porosity is 2.66%, water porosity is 30.6%, water holding capacity is 188.4g/kg. It was benefit for Agrostis stolonifera L.cv.Yuexuan No.1 to be a lawn using peat mix with sand. Used peat and sand in accordance with volume ratio 2.5% and mixed layer thickness of 10 cm, turf grass growing time was 39d, the biomass of above and below ground reach 4.02gDW/dm2 and 7.88gDW/dm2 respectively, the lawn density was 11.9 strain/ cm2, turf color was deep, and the growth of turf grass was large.
Key words:Agrostis stolonifera L. cv. Yuexuan No.1; green lawn; dosage of peat;
lawn characteristic