Effect of Tunnel Covering Date on Harvesting Time and Yield of Asparagus(Asparagus officinalis L.) in Jeju

제주에서 터널 피복시기가 아스파라거스의 수확기 및 수량에 미치는 영향

  • Seong, Ki-Cheol (Subtropical Horticulture Division, National Institute of Subtropical Agriculture, RDA) ;
  • Kim, Chun-Hwan (Subtropical Horticulture Division, National Institute of Subtropical Agriculture, RDA) ;
  • Lee, Jin-Soo (Subtropical Horticulture Division, National Institute of Subtropical Agriculture, RDA) ;
  • Kim, Doo-Seop (Subtropical Horticulture Division, National Institute of Subtropical Agriculture, RDA) ;
  • Um, Yeong-Cheol (Subtropical Horticulture Division, National Institute of Subtropical Agriculture, RDA) ;
  • Kang, Kyong-Hee (Subtropical Horticulture Division, National Institute of Subtropical Agriculture, RDA)
  • 성기철 (난지농업연구소 난지원예작물과) ;
  • 김천환 (난지농업연구소 난지원예작물과) ;
  • 이진수 (난지농업연구소 난지원예작물과) ;
  • 김두섭 (난지농업연구소 난지원예작물과) ;
  • 엄영철 (난지농업연구소 난지원예작물과) ;
  • 강경희 (난지농업연구소 난지원예작물과)
  • Published : 2007.12.30

Abstract

Optimal date to cover plastic film tunnel for hastening the harvest and increasing the yield in asparagus was studied using 2-year-old 'Green tower' cultivar in Jeju. Plastic film tunnel was covered on January 10 and 21, and February 10 and 25 in 2004. The asparagus spear sprouted on March 3 in the control. They emerged earlier by about 2 to 3 weeks in the plots covered on January 10 and 25 than the control. First harvesting was hastened by 3 weeks in the plots covered on February 10 and two weeks in the plots covered on January 25 and February 10 compared to the control. Yield per plant was the highest in plastic film tunnel covered on January 10 and 25. Early harvesting in february in plastic film tunnel covered on January 10 and 25 were 325 and 333 kg/10a respectively with no significant difference between two treatments whereas yield was low significantly in plastic film tunnel covered on February 10 and 25.

난지권인 제주에서 아스파라거스 수확기 및 수량에 미치는 터널피복 시기를 구명코자 2년생 '그린타워' 품종을 이용 수행하였다. 무처리를 비롯하여 터널피복 시기는 2004년 1월 10일부터 15일 간격으로 2월 25일 까지 4회 실시하였다. 맹아일은 관행 3월 3일에 비하여 1월 10일과 25일 피복구에서 23주 빨랐다. 첫 수확일은 관행구(무처리) 3월 11일에 비하여 1월 10일 피복구에서 2월 19일로 3주, 1월 25일과 2월 10일 피복구에서는 2월 25일로 2주 정도의 수확기 촉진 효과가 나타났다. 주당수량은 1월 10일과 25일 피복구에서 가장 많았으며 피복시기가 늦어짐에 따라 크게 적어졌다. 터널피복에 의한 2월 조기수확 효과는 1월 10일 및 1월 25일 피복구에서 각각 325, 333kg/10a로 크게 나타났으며 2월 10일 피복구 이후에서는 크게 감소되었다.

Keywords

References

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