NOVELTY - Composting waste vegetation by using clamp set comprises selecting waste planting material as a carrier planting material, soaking in hydrogen peroxide, taking out and drying, preparing different grain diameters of compost by drying, sieving, composting to prepare the compost having different grain sizes, preparing nursery waste by taking the waste newspaper and cotton planting material as a lower planting layer, the waste gauze as an upper planting layer, sowing ryegrass seed, uniformly sowing and sprinkling the compost, adding dried soil in a dish, growing, cutting, and drying.    USE - The method is useful for promoting germination and early growth of ryegrass (claimed).    DETAILED DESCRIPTION - Composting waste vegetation by using clamp set comprises: (a) selecting waste planting material as a carrier planting material, exposing in sun, soaking in hydrogen peroxide (1%), for 10 minutes, taking out and drying in sun, where the waste is waste newspaper, waste cotton cloth, waste gauze, (b) preparing different grain diameters domestic waste compost by drying at a constant temperature of 105 degrees C, sieving through a standard sieve with different pore diameters, separating the compost having grain diameter of less than 0.1 mm, composting at a speed of 24000 revolutions per minute for 3 minutes, 6 minutes and 9 minutes to prepare the compost having grain sizes of 300 nm, 240 nm or 100 nm, (c) preparing nursery waste by taking the waste newspaper and waste cotton planting material as a lower planting layer, and the waste gauze as an upper planting layer, uniformly sowing ryegrass seed on each planting belt, uniformly sowing and sprinkling the compost, fixing in the ryegrass vegetation zone, where the seeding amount in the nursery is controlled to 50 plump ryegrass seed with a diameter of 11 cm, uniformly sprinkling 1 g grain diameter compost; (d) adding dried soil in a culture dish, growing the ryegrass in the soil after sowing, watering daily, where the laboratory average room temperature is 17.5-23.7 degrees C and average humidity is 30-40%; and (e) cutting after 30 days of sowing, placing into an oven, setting the temperature at 80 degrees C, drying to a constant weight, weighing in an electronic balance, and drying in an oven at 105 degrees C for 1 hour, and drying at 80 degrees C and measuring the dry weight of the aerial part.