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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.16, no.4, 2007³â, pp.395-406
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( Effect of Nutrient Solution Concentration on the Growth and Mineral Uptake of Various Wrap-up Vegetables and Herbs Grown with Mixed Planting in DFT Hydroponics ) |
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| ±¹È°ú 13Á¾°ú ¹èÃß°ú 14Á¾ÀÇ ½Óä¼Ò·ù, ±×¸®°í Çãºê·ù 7Á¾À» ´ã¾×½Ä ¼ö°æÀç¹è ½Ã½ºÅÛ¿¡ È¥½ÄÇÏ¿© EC 1.2, 2.4 ¹× $3.6dS{cdot}m^{-1}$ÀÇ ¹è¾ç¾×À» °ø±ÞÇÏ¿© ¹è¾ç¾×ÀÇ pH¿Í EC º¯È, ½Ä¹°Ã¼ÀÇ »ýÀ°°ú ¹«±â¾çºÐ Èí¼ö Ư¼ºÀ» Á¶»çÇÏ¿´´Ù. pH´Â ¾ç¾×³óµµ°¡ ³ôÀ»¼ö·Ï ³·¾ÆÁ³°í, EC´Â ¾ç¾×³óµµ°¡ ³ôÀº 󸮿¡¼ ³ô¾Æ EC $3.6dS{cdot}m^{-1}$󸮿¡¼ $4.8dS{cdot}m^{-1}$±îÁö ³ô¾ÆÁ³´Ù. »ýÀ°Àº ¿©¸§Ã¶¿¡´Â ±¹È°ú¿Í Çãºê·ù´Â EC $1.2dS{cdot}m^{-1}$, ¹èÃß°ú´Â $2.4dS{cdot}m^{-1}$ÀÇ ¹è¾ç¾×¿¡¼ ¾çÈ£ÇÏ¿´°í, °¡À»Ã¶¿¡´Â EC $2.4dS{cdot}m^{-1}$ 󸮿¡¼ ´ëºÎºÐ ÀÛ¹°ÀÌ »ýÀ°ÀÌ ¾çÈ£ÇÏ¿´´Ù. ¹«±â¾çºÐÀÇ Èí¼ö´Â »ýÀ°ÀÌ ¾çÈ£Çß´ø °¡À»Ã¶ÀÌ ¿©¸§Ã¶º¸´Ù T-N°ú K ÇÔ·®ÀÌ ³ô¾Ò´Ù. ÀÛ¹°º°·Î´Â ¹èÃß°ú°¡ ±¹È°ú¿Í Çãºê·ù¿¡ ºñÇØ¼ T-N, K, Ca,±×¸®°í MgÇÔ·®ÀÌ ³ô¾ÒÀ¸¸ç, Fe°ú Mn ÇÔ·®Àº ¿ÀÈ÷·Á ±¹È°ú¿¡¼ ³ô¾Ò´Ù. °á°úÀûÀ¸·Î ±¹È°ú¿Í ¹èÃß°ú ½Óä¼Ò·ù¿Í ¸î °¡Áö Çãºê·ù¸¦ È¥½ÄÇÏ¿© ÇÑ °¡Áö ¹è¾ç¾×À¸·Î ¼ö°æÀç¹è ½Ã ¿©¸§Ã¶¿¡´Â EC $1.2dS{cdot}m^{-1}$, °¡À»¿¡´Â EC $2.4dS{cdot}m^{-1}$·Î Àç¹èÇϸé À¯¸®ÇÒ °ÍÀ¸·Î ÆÇ´ÜµÇ¾ú´Ù. |
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| The twenty seven wrap-up vegetables (13 Compositae, 14 Brassicaceae) and seven herbs (6 Labiatae, 1 Umbelliferae) were cultivated with a deep flow technique (DFT) hydroponic beds and treated with 3 levels of nutrient solution concentrations of 1.2, 2.4, and $3.6dS{cdot}m^{-1}$ in summer and autumn season. The pH and electrical conductivity (EC) change of nutrient solution, fresh weight, and mineral contents of plants were investigated. The pH was maintained lower in high electrical conductivity (EC) treatment and in summer than autumn. EC of nutrient solution in EC $3.6dS{cdot}m^{-1}$ treatment increased up to $4.8dS{cdot}m^{-1}$ during the growing period in summer season. The growth of tested plants showed high variations by plant species and nutrient solution concentrations. The coefficient variation (CV) of the shoot fresh weight of plants was higher in summer than autumn. The growth of Compostiae and herbs was better at EC $1.2dS{cdot}m^{-1}$, and 14 Brassicaceae was better at EC $2.4dS{cdot}m^{-1}$ in summer. In autumn, the growth was better at EC $2.4dS{cdot}m^{-1}$ in all plants except kale 'TBC F1' and red rape 'honchaetae'. In mineral contents, total nitrogen and potassium were higher in autumn than summer. Total nitrogen, potassium, calcium, magnesium were higher in Brassicaceae than others. Iron and manganese, however, were higher in Compositae. As the results, this study suggests that mixed planting of 27 wrap-up vegetables and 7 herbs in DFT hydroponics in two seasons was possible and EC $1.2dS{cdot}m^{-1}$ in summer and EC $2.4dS{cdot}m^{-1}$ in autumn be recommended as for the nutrient solution concentration to produce them safely year round. |
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| °èÀý;»êµµ;½Ó;Àü±âÀüµµµµ;Èí¼ö;absorption;electrical conductivity;pH;season;ssam; |
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»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.16, no.4, 2007³â, pp.395-406
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200706414476435)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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