Effect Of Golf Course Maintenance On Green Speed

There were little research of green speed , with the development of golf in China, People would pay more attention to the improvement of play quality of golf course. Green speed would be a focus research aera .This thesis was green speed research base on local climate and golf course maintance characteristic.Using Stimpmeter to measure the green speed of Beijing Willow Golf Course, and make sure how much the green maintenances affect the green speed. The maintenances is about mowing , rolling, coring. The results were:The investigation of green speed in whole year show that average green speed of Willow Golf Course was fast (230cm) according to the USGA Green Speed Chart. Green speed increased on every mouth Except August and September. The greatest average green speed of the whole course was in October, and the Stimpmeter reading was 238.3 cm..The uniform of green speed on the Willow golf course was worse in Spring. It would be better In Summer and Autumn. With the more maintains conduct the more consistent green speed was.The greatest green speed was on 9Am and after that, green speed had drop a little, then it was hold on 13pm.Mowing height and mowing type had magnificent different on affect green speed. The green speed would increase large after mowing. Mowing could increase the uniform of the green speed. Green speed would decrease 5% with the mowing height 0.5mm lower. Double cutting could enhance the green speed better than mowing. Green speed was the biggest with double cutting at 3mm mowing height.The research of 4.5mm,4mm,3.5mm mowing height show that the green speed will decrease 5% when the mowing height drop 0.5mm. Mowing can make the green speed more consistent. Double cutting could increase green speed in 10cm. There was no different with different measure direction on green.Rolling could increase green speed about 50cm. On the second day the green speed would drop 40 cm , then it was steady after the third days . the more time rolling the green the higher the green speed was.Core operation could increase green a letter , but it had not different in statistic . If the green had topdressing and rolling after core, it could make the green speed 70cm higher then without that. Grooming could increase green speed about 2cm, But it was not different in statistic.