Korean Journal of Environmental Agriculture (한국환경농학회지)

The Korean Society of Environmental Agriculture (한국환경농학회)
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Establishment of a Standard Nitrogen Application Rate for Zoysia matrella Using Growth Responses to Various Fertilization Level

질소 시비 수준별 금잔디의 생육과 질소 시비량 설정

  • Kim, Young-Sun (Division of Life & Environmental Science (Horticulture Major), Deagu University) ;
  • Choi, Mun-Jin (Division of Life & Environmental Science (Horticulture Major), Deagu University) ;
  • Youn, Jeong-Ho (Hanul Co. Ltd.) ;
  • Lee, Geung-Joo (Department of Horticulture and Department of Smart Agriculture System, Chungnam National University)
  • 김영선 (대구대학교 생명환경학부(원예학전공)) ;
  • 최문진 (대구대학교 생명환경학부(원예학전공)) ;
  • 윤정호 ((주)한울) ;
  • 이긍주 (충남대학교 원예학과/스마트농업학과)
  • Received : 2022.08.02
  • Accepted : 2022.08.22
  • Published : 2022.09.30
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Abstract

BACKGROUND: Nitrogen (N) is an important element for turfgrass (Zoysia matrella) growth; however, standard N application rate for turfgrass is not established yet. This study was conducted to evaluate the effect of N application rates on the growth and quality of turfgrass for establishment of standard N application rate. METHODS AND RESULTS: Treatments were as follows; control (0 N g/m2/month), 1N (1 N g/m2/month), 2N(2 N g/m2/month), 3N (3 N g/m2/month), 4N (4 N g/m2/month), and 5N (5 N g/m2/month). N application improved visual turfgrass quality. Compared with the control, clipping yield of all N treatments increased by 90~194%. The grass shoot weight of 3N, 4N, and 5N treatments increased by 52%, 43%, and 111%, respectively, and the stolon weight of 4N and 5N treatments increased by 412% and 201%, respectively, compared to the control. The N uptake amount and N recovery rate were estimated to be 4.10~6.28 g/m2 and 14~58%, respectively. CONCLUSION(S): These results indicate that considering visual quality, clipping yield, N uptake amount, and N recovery, the application rate of 2~3 N g/m2/month was suggested to be suitable for Z. matrella production.

Keywords

Acknowledgement

This study was carried out with the support of 'R&D Program for Forest Science Technology (Project No. "FTIS 20222439C10-2222-0102")' provided by Korea Forest Service (Korea Forestry Promotion Institute).

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