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Macro and Micro Nutrient Contents in Leaves of Greenhouse-grown Cucumber by Growth Stages

시설재배 오이의 생육시기별 엽 중 다량요소와 미량요소 함량

Lee, Ju-Young;Sung, Jwa-Kyung;Lee, Su-Yeon;Jang, Byoung-Choon;Kim, Rog-Young;Kang, Seong-Soo
이주영;성좌경;이수연;장병춘;김록영;강성수

  • Received : 2011.04.08
  • Accepted : 2011.04.12
  • Published : 2011.04.30

Abstract

In order to estimate the inorganic nutrient content in cucumber leaves at respective growth stages under greenhouse conditions, we investigated five cucumber farms practicing a forcing cultivation system with nine-month growth period and another five cucumber farms practicing a semiforcing cultivation system with six-month growth period. The cucumber yield in forcing and semiforcing cultivation systems amounted to 14.8 ton $10a^{-1}$ and 10.7 ton $10a^{-1}$, respectively. Soils between two different cultivation systems showed no significant differences in pH, organic matter contents and exchangeable cation contents during early growth stage, whereas EC, $NO_3$-N and available $P_2O_5$ contents were higher in soils of semiforcing cultivation systems. Suitable soil temperature was well provided by forcing cultivation. The highest NPK contents in leaves were observed in 60~80 days after planting for forcing systems and in 100 days after planting for semiforcing systems. Thereby forcing cultivation systems showed somewhat higher NPK contents. Ca and Mg contents in cucumber leaves did not significantly change during the growth period in forcing systems, while semiforcing systems showed the highest contents of Ca and Mg in 80~100 days after planting. Fe, Mn and Zn contents in leaves also did not significantly change during the growth period, whereas Mn contents were slightly higher in forcing systems due to lower soil pH. B contents in leaves were higher in semiforcing systems because of higher available B contents in soil.

Keywords

Cucumber;Forcing culture;Semiforcing culture;Growth stage;Macro nutrient;Micro nutrient;Greenhouse

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  2. Evaluation of Soil and Fertilizer Management Techniques Applied by Farmers in Forcing and Semi-forcing Cucumber Cultivation Facilities vol.45, pp.6, 2012, https://doi.org/10.7745/KJSSF.2012.45.6.983