THE COMPOSITION METHOD OF COMBINED TURF AND A METHOD OF RAISING THE SAME

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Combined turf complementing defects of natural turf and artificial turf is provided to obtain morphological stability and to improve cover rate, permeability, ease of sowing and soil turf establishment rate by protecting root of natural turf and durability. Combined turf comprises : the foundation ground(10); a coating layer(30) to determine the size of sod by limiting the growth of root at the upper part of the foundation ground and to provide morphological stability; a fiber bubble(50) as a foundation in which artificial turf is planted at the upper part of the coating layer; artificial turf(110) planted on the fiber bubble; an earth layer(70) in which natural turf(150) can be stably planted on the basis of the artificial turf; and the natural turf cultivated in tile shape by germination of natural turf seed(130) in the earth layer, wherein the artificial turf comprises a ribbon shaped pile made of synthetic fiber with 80 to 300mum in thickness, 2 to 20mm in depth and 10 to 70mm in height and has Shore A hardness ranging from 65 to 85. Combined turf growth management is achieved by the steps of : forming a polyurethane coating layer on the foundation ground comprising the crushed stone ground with 3x7.5m in width and length and sand with 20cm in thickness; forming fiber bubbles comprising rayon on the coating layer; directly planting artificial turf with 12mm in side depth and 65mm in pile length on the fiber bubbles by a tufting method; and forming an earth layer based on the artificial turf and sowing 10 to 50g/m^2 Kentucky bluegrass seed in the earth layer.