Effects of Source and Mixing Ratio of Green Topsoil on Growth-Quality of Creeping Bentgrass

토양개량제 혼합비율이 잔디의 생육및 품질에 미치는 영향

This experiment was carried out to investigate the effect of mixing ratio of soil amending materials such as peat. perlite, active carbon, and zeolite on the growth and quality of creeping bentgrass (Agrostis pa1ustris var. Penncross). The results of this experiment were surnrnarized as follows; 1.Nitrogen content of clippings was increased by the treatment of peat and active carbon. hut the other phosphorus, potassium, calcium and magnesium content were increased in addition of,5% to 10% of peat, and 2.5% to 5% of active carbon. 10% of perlite. and 4% of zeolite 2.Fast growth and good quality of bentgrass were showed at the addition of 10% peat. l0% perlite.2.5~% active carbon, and 4% zeolite But over treatment of peat and active carbon induced inhi-bition of root growth and occurrence of disease.