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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.8, no.3, 1999³â, pp.172-182
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¼øÈ¯½Ä »óÃß ¾ç¾×Àç¹è½Ã ¾ç¾×ÀçȰ¿ë ±â¼ú
( Reusing Techniques of Nutrient Solution for Recycling Hydroponic Culture of Lettuce ) |
| À̼ºÀç;¼¸íÈÆ;ÀÌ»ó¿ì;½É»ó¿¬;À̼ö¿¬; °æ±âµµ³ó¾÷±â¼ú¿ø;°æ±âµµ³ó¾÷±â¼ú¿ø;°æ±âµµ³ó¾÷±â¼ú¿ø;°æ±âµµ³ó¾÷±â¼ú¿ø;°æ±âµµ³ó¾÷±â¼ú¿ø;
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| ¼ö°æÀç¹è¿¡¼ ¾ç¾×ÀÇ ÀçȰ¿ëÀÌ »óÃßÀÇ »ýÀ°À̳ª ¼ö·®¿¡ ¾î¶°ÇÑ ¿µÇâÀ» ¹ÌÄ¡´ÂÁö ¾Ë¾Æº¸°íÀÚ Control, ¾ç¾×º¸Ãæ, ECÁ¶Àý, ¾ç¾×°ËÁ¤º¸Á¤, ¾ç¾×°ËÁ¤º¸Á¤£«humus÷°¡ µîÀÇ 5󸮸¦ µÎ¾î ½ÇÇèÀ» ¼öÇàÇÑ °á°ú´Â ´ÙÀ½°ú °°´Ù. ¾ç¾×ÀÇ pH¿¡¼ ¾ç¾×°ËÁ¤º¸Á¤±¸¿Í ¾ç¾× °ËÁ¤º¸Á¤.£«HumusÂü°¡±¸°¡ 4Â÷Àç¹è±îÁö 7.0ÀÌÇÏ·Î ¾ÈÁ¤µÈ °æÇâÀ» ³ªÅ¸³»¾ú°í, EC´Â ¾ç¾×º¸Ã汸°¡ Àç¹èȽ¼ö°¡ ´Ã¾î³¯¼ö·Ï ÇöÀúÈ÷ ¶³¾îÁ³°í ´Ù¸¥ 󸮴 ´ëÁ¶±¸¿Í À¯»çÇÑ °æÇâÀ̾ú´Ù. »ýÀ° ¹× ¼ö·®Àº ¾ç¾×°ËÁ¤º¸Á¤ 󸮰¡ ¾ç¾×³» ¹«±âÀ̿µéÀÇ ±ÕÇüÀ¸·Î ´ëÁ¶±¸¿Í À¯»çÇÑ °æÇâÀ» ³ªÅ¸³»¾úÀ¸¸ç ¾ç¾×º¸Ã汸 ¹× ECÁ¶Àý±¸´Â Àç¹èȽ¼ö°¡ ´Ã¾î³¯¼ö·Ï ¶³¾îÁö´Â °æÇâÀ̾ú´Ù. ¾ç¾×ÀÇ ¹«±â¼ººÐÁß N $O_3$-N¿Í N $H_4$-N´Â Àç¹èÈÄ Ã³¸®¿¡ °ü°è¾øÀÌ ³óµµ°¡ Å©°Ô ¶³¾îÁ³°í ƯÈ÷ Ca°ú MgÀº ¸ðµç 󸮱¸¿¡¼ Àç¹èȽ¼ö¿¡ °ü°è¾øÀÌ Àç¹èÀü¿¡ ºñÇØ Àç¹è ÈÄ¿¡ ¾ç¾×³»¿¡ ÃàÀûµÇ´Â °æÇâÀ» º¸¿´´Ù. »óÃß¿±Áß ¹«±â¼ººÐÇÔ·®Àº T-N¿Í P$_2$ $O_{5}$ ÀÇ °æ¿ì 1Â÷Àç¹èÈÄ ¾ç¾×°ËÁ¤º¸Á¤£«Humus ÷°¡±¸¿¡¼ ´Ù¸¥ 󸮿¡ ºñÇØ ÇÔ·®ÀÌ Àû¾ú°í Àç¹èȽ¼ö°¡ ´Ã¾î³¯¼ö·Ï 󸮰£¿¡ Â÷À̰¡ ¾ø¾ú´Ù. K°ú MgÀº Àç¹èȽ¼ö³ª 󸮰£¿¡ Â÷À̰¡ ¾ø¾ú°í, CaÀÇ °æ¿ì ¾ç¾×°Ë Á¤º¸Á¤£«Humus ÷°¡±¸¿¡¼ 1Â÷¿Í 2Â÷Àç¹è ÈÄ ´Ù¼Ò ¸¹¾ÒÀ¸³ª, Àç¹èȽ¼ö°¡ ´Ã¾î³¯¼ö·Ï 󸮰£¿¡ Â÷À̰¡ ¾ø¾ú´Ù. |
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| Leaf lettuce(Lacaug sativa L.) was cultivated in deep flow culture to investigate growth and yield in relation to different reusing method of nutrient solution after once cultivation. Five different treatments were allocated to the nutrient solutions - Control(total renewal of solution), NSS(nutrient solution supplement), U control, NSAC(nutrient solution analysis and compensation), NSAC and Humus supply(NSAC with supply of Humus). The pH of solution was kept stable below 7.0 during 4 successive culture in NSAC and NSAC and Humus supply. U was sharply declined in NSS as the number of cultivation was increased. Gmwth and yield of NSAC was similar to those of Control because nutrient elements were kept the balance to the better growth, while the lettuce grown in NSS and EC control was shown lower growth rate. In the nutrient solutions, Content of N $O_3$-N and N $H_4$-N were remarkably decreased after the cultivation in all treatments. Ca and Mg were shown to be accumulated in nutrient solution regardless of culture times and treatments. After the first culture in NSAC and Humus supply, total N and P$_2$ $O_{5}$ content in leaves were lower than any other treatments, but Ca content was higher. Those were not significant as following cultures, and no significant difference of K and Mg content were shown among the treatments. |
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| ¿¬¼ÓÀç¹è;¾ç¾×º¸Ãæ;¾ç¾×°ËÁ¤º¸Á¤;Successive cu1ture;Nutrient solution supplement;Nutrient solution analysis and compensation; |
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»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.8, no.3, 1999³â, pp.172-182
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199911922406733)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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