Evaluating Various Nitrogen Sources for Divot Recovery on Creeping bentgrass

Creeping bentgrass의 생육과 디봇피해 회복을 위한 질소의 유형별 효과

  • Lee, Sang-Kook (Research Institute for Basic Sciences, Hoseo University)
  • 이상국 (호서대학교 기초과학연구소)
  • Received : 2012.07.16
  • Accepted : 2012.08.03
  • Published : 2012.08.31

Abstract

Creeping bentgrass (Agrostis stolonifera) is one of the most popular turfgrasses for high-quality playing surface such as putting green on golf courses and athletic fields. Continues damage such as divot injury on creeping bentgrass is major issue to maintain golf course properly. Although plentiful researches to maximize divot resistance have been reported, minimal research has focused on relation between nitrogen (N) sources and divot resistance. The study was conducted to determine the effect of N source for turfgrass divot recovery and overall tee performance. Eleven fertilizer treatments as N sources were applied to creeping bentgrass 'Penncross'. Before the first application, divot injuries were simulated by removing a core of soil and turfgrass from established plots and backfilling with native soil. Data collection included turfgrass color and quality. N release speed did not influenced divot recovery. Frequency of urea application had no effects on divot recovery. Urea with split application had no difference with no treatment for divot recovery. Polyon product especially polyon mini (41-0-0) had the best performance for divot recovery and for maintaining better turfgrass quality. Overall, small particle size of slow-release N form would influence creeping bentgrasss to recover divot damage.

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