Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
권호 표지

Effect of Application Rate of Fused Superphosphate in Three Media Containing Polyacrylic Acid Sodium Salt on Growth and Nutrient Contents of Potted Chrysanthemum 'Lima Honey'

Polyacrylic Acid Sodium Salt를 혼합한 세 종류 상토에 용과린의 시비 수준이 포트멈 'Lima Honey'의 생육 및 무기원소 흡수에 미치는 영향

  • Choi Jong-Myung (Division of Horticulture & Landscape Architecture, Pai Chai University) ;
  • Wang Hyun-Jin (Department of Horticulture, Chungnam National University) ;
  • Choi Taik-Yong (Chrysanthemum Experiment Station)
  • 최종명 (배재대학교 원예조경학부) ;
  • 왕현진 (충남대학교 원예학과) ;
  • 최택용 (충남농업기술원 예산국화시험장)
  • Published : 2006.03.01
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Abstract

This research was conducted to determine the plant growth and nutrient contents of potted chrysanthemum 'Lima Honey' as influenced by application rate of fused superphosphate (FSSP) in three root media, peatmoss+vermiculite (1:1, v/v; PV), peatmoss+composted rice hall (1:1, v/v; PR), and peatmoss+composted pine bark (1:1, v/v; PB). All root media contained polyacrylic acid sodium salt at a rate of $4.5g L^{-1}$. The treatment of $1.4g L^{-1}$ in PV and those of $0.7g L^{-1}$ in PR and PB had the greatest fresh and dry weights in each root medium at both 43 and 80 days after transplanting. Elevated application rates of FSPP increased tissue contents of N, P, and K at both 43 and 80 days after transplanting in PV medium. However, the differences in tissue contents of N, P and K in PR medium were less significant among treatments of FSPP. The pre-planting FSPP also less affected the tissue contents of nutrients at 80 days after transplanting as compared to those at 43 days after transplanting. Elevated application rates of FSPP in PV medium increased EC and the concentrations of $NO_3,\;P_2O_5$, K, Ca, and Mg in soil solution of root media at 43 days after transplanting. The EC in PV medium at 80 days after transplanting was higher than that at 43 days after transplanting. The EC in all root media at 80 days after transplanting was not different among treatments of FSPP.

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