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2025 Vol.52, Issue 3 Preview Page

Plant & Forest

Turfgrass quality changes of creeping bentgrass (Agrostis palustris L.) by applying slow-release nitrogen compound fertilizers
Jeong-Ho Lee1†
,
Ji-Hye Kang2†
,
Kyung-Mok Lee3
,
Doungyeob Kim4
,
Young-Sun Kim2*
,
Geung-Joo Lee56*
1Department of Golf Course Management, Korea Golf University of Science & Technology, Hoengseong 25249, Korea
2Department of Smart Horticulture, Daegu University, Gyeongsan 38453, Korea
3C&L Chemical Co., Ltd., Seoul 03937, Korea
4Department of Forest Resources, Daegu University, Gyeongsan 38453, Korea
5Department of Horticulture, Chungnam National University, Daejeon 34134, Korea
6Department of Smart Agriculture Systems, Chungnam National University, Daejeon 34134, Korea
*Corresponding Author
†These authors equally contributed to this study as first author.
1 September 2025. pp. 365-373
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Abstract

This study evaluated the effect of applying slow-release nitrogen compound fertilizer on the growth and quality of creeping bentgrass (Agrostis palustris L.). The treatments were as follows: no fertilizer (NF), control (straight compound fertilizer for 3 g N·m-2·month-1), slow-releasing methylene urea (MU for 3 g N·m-2·month-1), and slow-releasing isobutylidene diurea (IBDU for 3 g N·m-2·month-1). The soil chemical properties, electrical conductivity (EC), organic matter (OM), total nitrogen (T-N), available phosphate (Av. P2O5), and exchangeable potassium (Ex. K), were increased after applying MU and IBDU. Compared to NF, chlorophyll indexes of MU and IBUD in June were increased by 14.4% and 14.9%, and in September by 20.4% and 17.3%. However, compared with the control, there were no significant differences. Although the average shoot lengths of MU and IBDU were higher than those of NF, they were not significantly different from those of the control. The shoot density and root length of the MU and IBDU treatments were not significantly different from those of the control, inferring that long-term performances need to be further investigated for the detailed effects of the straight or slow-releasing fertilizer following the current season’s evaluation.

Keywords
creeping bentgrass
isobutylidene diurea (IBDU)
methylene urea (MU)
slow-release fertilizers
turfgrass growth
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Information
  • Publisher :Institute of Agricultural Science, Chungnam National University
  • Publisher(Ko) :충남대학교 농업과학연구소
  • Journal Title :Korean Journal of Agricultural Science
  • Journal Title(Ko) :농업과학연구
  • Volume : 52
  • No :3
  • Pages :365-373
  • Received Date : 2025-06-11
  • Revised Date : 2025-08-21
  • Accepted Date : 2025-08-21
  • DOI :https://doi.org/10.7744/kjoas.520313
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