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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.7, no.1, 1998³â, pp.71-77
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( Thermal Characteristics of Nutrient Solution and Root Media in Recycled Soilless Culture Systems ) |
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| º» ½ÇÇèÀº ¹èÁöÀÇ Á¾·ù ¹× ȯ°æÁ¶°Ç¿¡ ´ëÇÏ¿© ¹èÁöÀÇ ¿Âµµº¯È Ư¼ºÀ» ºÐ¼®ÇÏ´Â °ÍÀ» ¸ñÀûÀ¸·Î ÇÏ¿´´Ù. NFT DFT, ½½¶óºêÇü ¼ºÇü¾Ï¸é, ¸é»ó¾Ï¸é, ÆÞ¶óÀÌÆ® ¹èÁö¸¦ »ç¿ëÇÏ´Â ¼øÈ¯½Ä ¾ç¾×Àç¹è½Ã½ºÅÛÀ» ±¸ÃàÇÏ¿´´Ù. NFT¿ÍDFT½Ã½ºÅÛÀº ¾ç¾× ¹× Àç¹èÁ¶ ³»ÀÇ °ø±â¿Âµµ¸¦ ÃøÁ¤ÇÏ¿´°í, °íÇü¹èÁö´Â ¹èÁö¿Âµµ¸¦ ÃøÁ¤ .ºñ±³ÇÏ¿´´Ù. NFT½Ã½ºÅÆÀÇ ¾ç¾× °ø±ÞÀ¯·®À» 3$ell$/min, 5$ell$/min·Î ÇÒ ¶§, ¾ç¾× ¿Âµµ´Â ÁÖ°£¿¡´Â ÀüÀÚ°¡ ÈÄÀÚ¿¡ ºñÇÏ¿© ¾à 3t Á¤µµ ³ô°Ô ³ªÅ¸³µ´Ù. Àç¹èÁ¶³»ÀÇ °ø±â¿Âµµµµ µ¿ÀÏÇÑ °æÇâÀ» º¸ÀÌ¸ç ¾à 2$^{circ}C$ Á¤µµ Â÷À̸¦ ³ªÅ¸³Â´Ù. DFT ½Ã½ºÅÛÀÇ ¼öÀ§¸¦ 0.8cm, 1.8cm·Î ÇÒ ¶§, ¾ç¾× ¿Âµµ´Â ÁÖ°£¿¡´Â ÀüÀÚ°¡ ÈÄÀÚ¿¡ ºñÇÏ¿© ¾à 1-2$^{circ}C$ Á¤µµ ³ô°Ô ³ªÅ¸³µ´Ù. ¶ÇÇÑ Àç¹èÁ¶³»ÀÇ °ø±â ¿Âµµµµ µ¿ÀÏÇÑ °æÇâÀ» º¸¿´´Ù. ÆÞ¶óÀÌÆ® ¹èÁö´Â, ÁÖ°£¿¡ ¸ÖĪÇÑ ¹èÁö°¡ ¾à 3$^{circ}C$ Á¤µµ, ¸é»ó¾Ï¸é ¹èÁöµµ ¾à 3$^{circ}C$ Á¤µµ ³ô°Ô ³ªÅ¸³µ°í, ½½¶óºêÇü ¾Ï¸é¹èÁö´Â Á־߰£ ¸ÖĪÇÑ ¹èÁö°¡ 1-4$^{circ}C$Á¤µµ ³ô°Ô ³ªÅ¸³µ°í. ƯÈ÷ ÁÖ°£¿¡ ³ôÀº ¿Âµµ»ó½ÂÀ» ³ªÅ¸³Â´Ù. °íÇü¹èÁöÁß¿¡¼ ÆÞ¶óÀÌÆ® ¹èÁö¿Âµµ°¡ ¾Ï¸é¿¡ ºñ±³ÇÏ¿© »ó´ëÀûÀ¸·Î ¾ß°£Àº ³·°í ÁÖ°£ÀÌ ³ô°Ô ³ªÅ¸³µ´Ù. ½½¶óºêÇü ¾Ï¸éÀÇ °æ¿ì´Â Ç¥¸éÀû Àüü°¡ °ø±âÁß¿¡ ³ëÃâµÇ¾î Àֱ⠶§¹®¿¡ ´Ù¸¥ °íÇü¹èÁöº¸´Ù ÁÖ°£ÀÇ ¿Âµµ»ó½ÂÀÌ Å©°Ô ³ªÅ¸³µ´Ù. °íÇü¹èÁöÀÇ »Ñ¸®ºÎºÐÀÇ ¿Âµµ°¡ ÀÛ¹°°ú ÀÛ¹°»çÀÌÀÇ ¹èÁö¿Âµµ¿¡ ºñÇÏ¿© ÁÖ°£ ¾à 3fÁ¤µµ ³·°Ô ³ªÅ¸³µÀ¸¸ç, ¾ß°£ÀÇ °æ¿ì´Â °ÅÀÇ Â÷À̰¡ ¾ø¾ú´Ù. |
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| The root-zone environment is an important factor to the plant growth and it is closely related to the thermal characteristics of the root media. In this study thermal characteristics of root media with ambient environmental conditions were analyzed. The temperatures of nutrient solution as well as inside air of culture bed were measured in Nutrient Film Technique(NFT) and Deep Flow Technique(DFT) systems, and also the temperatures of root media measured in aggregate culture systems , The temperature of nutrient solution of NFT system with as low as 3$ell$/min of flow rate was 3$^{circ}C$ higher than that with 5 $ell$/min of flow rate in the daytime, and the temperature of inside air was 2$^{circ}C$ higher at night. And the temperature of nutrient solution of DFT system with as low as 0.8 cm of water level was 1-2$^{circ}C$ higher than that with 1 8 cm in the daytime, and the temperature of inside air was almost same at night. The root-zone temperatures in the perlite and rockwool granulate systems with film mulching were 3$^{circ}C$ higher than those without film mulching in the daytime. However, the rockwool slab system with film mulching showed the same trend as rockwool granulate system, but relatively higher temperature than any other medium because of the exposure of media surface to the ambient air. Additionally the temperature below the plant was measured 3$^{circ}C$ lower than that between plants. |
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| ±Ù±ÇºÎ ¿Âµµ;À¯·®;¼öÀ§;Çʸ§ ¸ÖĪ;root-zone temperature;flow rate;water level;film mulching; |
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»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.7, no.1, 1998³â, pp.71-77
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199811922405924)
¾ð¾î : ¿µ¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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