Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
권호 표지

Development of Optimum Nutrient Solution for Sweet Basil (Ocimum basilicum L.) in a Closed System

스위트 바실의 순환식 수경재배에 적합한 배양액 개발

Yeo, Kyung-Hwan;Lee, Yong-Beom
여경환;이용범

  • Published : 20040000
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Abstract

To develop a nutrient solution for sweet basil (Ocimum basilicum L.) in a close system, sweet basil plants were grown in NFT supplied with 1/4, 1/2, 1, and 2 strength of the nutrient solution of National Horticultural Experiment Station in Japan (HES). The pH and EC in 1 strength of HES nutrient solution were more stable than those in other concentrations. Moreover, crop growth in 1 strength was higher than those in other treatments and nutrient contents in the leaves were also in sufficiency ranges of plant nutrient diagnosis standard. Based on these results, optimum macronutrients were composed by nutrient-water (n/w) absorption ratio with 1 strength (NO_3-N 11.6, NH_4-N 1.2, P 3.6, K 5.8, Ca 5.8, Mg 3.0 me․L^-^1). To examine the suitability of the nutrient solution developed by n/w absorption ratio, sweet basil plants were grown in NFT irrigated with different kinds of solutions: the nutrient solution developed by the plant analysis (PA) of 1 S, nutrient solution of European Vegetable R & D Center (EVR), HES of 1 S, the nutrient solutions developed in the above experiment (SCU) of 1/2, 1, and 2 S. As sweet basil plants grew, the concentration of N, P, and K in root zone decreased, but Ca and Mg concentrations were consistent through the whole growth stage. The growth of sweet basil plants in the concentration at 1 S of SCU and EVR which were stable in root zone was better than other treatments for photosynthesis, fresh, and dry weight.

Keywords

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