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Reusing Methods of Media in Tomatoes Hydroponic System

Summary

  The purpose of this study was to establish efficient reusing methods of perlite media in hydroponic system. In 1997, when used perlite media  were treated with water-washing(WW), steam sterilization(SS), and steam sterilization after washing(SSAW) along with new perlite(NP) and non-treated reusing perlite(NTRP), growth of tomato was better in NP and SSAW treatments than in other treatments. Marketable yield of SSAW was similar to that of NP at the first culture and increased by 11% at the second culture compared with that of NTRP. The concentration of inorganic element in perlite media was reduced by WW and SSAW, but that of phosphate was not reduced. When the concentration of total phenolics in the nutrient solution after cultivation was analyzed, it was higher in NTRP and SS. Those nutrients contained high concentration of phenolics inhibited germination of tomato seeds. The phenolics in nutrient solution were identified as hydroxybenzonic acid, coumaric acid and ferulic acid by HPLC analysis. In 1998, in order to reuse perlite media efficiently, perlite media used in 1997 were sterilized with heat pipe(HP) installed for root zone heating in the bed system. Average fruit weight  was higher in SSAW than any other treatments, but the marketable fruit was similar to that of NP. Sterilization with heating pipe(SHP) decreased the marketable fruit. Density of saprophytic bacteria  was reduced in SSAW and population of fungi was also decreased in SHP.  Concentration of inorganic elements except phosphate in perlite media was decreased, which was similar to that of 1997. Therefore, steam sterilization after water-washing(SSAW) could be useful technique for reusing of  perlite media in hydroponic system.

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    1997³â 1³âÂ÷ ½ÃÇè¿¡¼­  ÀçȰ¿ë¹èÁö´Â »óÃß 4±âÀÛ Àç¹èÇÑ ¹èÁö¸¦ »ç¿ëÇÏ¿´¿© ¼ö¼¼¿Í Áõ±â¼Òµ¶ ±×¸®°í ¼ö¼¼ÈÄ Áõ±â¼Òµ¶ÀÇ º¹ÇÕó¸®ÀÇ È¿°ú¿¡ ´ëÇÏ¿© °ËÁ¤ÇÏ¿´´Ù. ¼Òµ¶Àº ¹èÁö³» ¸ðµç ¹Ì»ý¹°À» »ì±ÕÇÒ ¸ñÀûÀ¸·Î ½Ç½ÃÇÏ¿´À¸¸ç ¼ö¼¼´Â  È£±â¼ºÀÎ ´ëºÎºÐÀÇ ½Ä¹°º´¿ø¼º Áø±ÕÀÇ Á¦°Å¿Í ¹èÁö³» ¿°·ùÁ¦°Å¸¦ ¸ñÀûÀ¸·Î ÇÏ¿´´Ù. ÀÌ Ã³¸® °á°ú ÆÞ¶óÀÌÆ® ¾ç¾×Àç¹è½Ã ½Å±Ô¹èÁö  ¹× ¼ö¼¼ÈÄ  Áõ±â ¼Òµ¶ 󸮱¸¿¡¼­ »ýÀ°ÀÌ °¡Àå ÁÁ¾Ò°í(Ç¥ 1), Å丶Åä  ¼ö·®Àº ½Å±Ô¹èÁö¿¡ ºñÇÏ¿© 1Â÷Àç¹è¿¡¼­´Â ºñ½ÁÇÏ¿´À¸³ª, 2Â÷Àç¹è¿¡¼­´Â ¼ö·®ÀÌ 11% Áõ¼öµÇ¾ú´Ù. ƯÈ÷ ¼ö¼¼Ã³¸®¿Í Áõ±â¼Òµ¶ 󸮱¸¿¡¼­´Â ¹«Ã³¸®±¸¿¡ ºñÇÏ¿© »óǰ¼ö·®Àº Â÷À̰¡ ¾ø¾ú´Ù(Ç¥ 2). ¹èÁöºÐ¼® °á°ú ¼ö¼¼Ã³¸®¿Í ¼ö¼¼ÈÄ Áõ±â¼Òµ¶ 󸮱¸¿¡¼­ ´ëºÎºÐÀÇ ¹«±â¼ººÐÀÇ ³óµµ´Â °¨¼ÒÇÏ¿´À¸³ª, ÀλêÀÇ °æ¿ì ó¸®Àü¿¡ ºñÇÏ¿© Å« Â÷À̰¡ ¾ø¾ú´Ù(Ç¥ 3). °á±¹ ¼ö¼¼·Î´Â ÀÎÀ» Á¦°ÅÇϱⰡ ¾î·Æ´Ù´Â »ç½ÇÀ» ¾Ë ¼ö ÀÖ¾ú´Ù.

Ç¥ 1. ÆÞ¶óÀÌÆ® ÀçȰ¿ë ¹èÁöÀÇ Ã³¸®º° Å丶Åä »ýÀ°»óȲ             (1997)

󸮹æ¹ý

°æ °æ(mm)

¿±·Ï¼Ò ÇÔ·®x

Àý°£Àå(cm)

°æÀå(cm)

1Â÷Àç¹è

2Â÷Àç¹è

1Â÷Àç¹è

2Â÷Àç¹è

1Â÷Àç¹è

2Â÷Àç¹è

1Â÷Àç¹è

2Â÷Àç¹è

½Å±Ô  ¹èÁö

Áõ±â  ¼Òµ¶

¼ö¼¼  Ã³¸®

¼ö¼¼ÈÄÁõ±â

¹«  Ã³  ¸®

13.9

12.3

12.1

12.9

13.6

11.3

11.0

11.5

12.0

11.4

53.9

57.8

59.0

58.7

54.0

59.0

57.8

59.0

58.7

54.0

7.1

6.9

7.7

8.0

7.2

6.0

7.0

7.0

7.0

6.5

157

148

162

165

149

149

147

148

152

125

 x¿±·Ï¼Ò°è( Minolta spad 502)¸¦ »ç¿ëÇÏ¿© ÃøÁ¤ÇÑ ¼öÄ¡

 

Ç¥ 2. ÆÞ¶óÀÌÆ® ÀçȰ¿ë ¹èÁöÀÇ Ã³¸®º° Å丶Åä ¼ö·® ¹× ǰÁú Ư¼º       (1997)

󸮳»¿ë

ÁÖ´çÃѼö·®

(g/ÁÖ)

»óǰ°úÁß

(g/ÁÖ)

°ú½ÇÁß

(g/ÁÖ)

»óǰ¼ö·®

(kg/10a)

»óǰ¼ö·®

Áö¼ö

´ç  µµ

(¡£Bx)

1Â÷

2Â÷

1Â÷

2Â÷

1Â÷

2Â÷

1Â÷

2Â÷

1Â÷

2Â÷

1Â÷

2Â÷

½Å±Ô ¹èÁö

2,230

1,655

2,075

1,404

147.4

126.6

6,916

4,680

 100

 100

 6.2

 6.6

Áõ±â ¼Òµ¶

1,958

1,325

1,812

1,060

132.5

121.1

6,039

3,533

  87

  75

 6.4

 6.8

¼ö¼¼ ó¸®

1,725

1,327

1,636

1,039

122.6

128.5

5,453

3,463

  79

  74

 6.2

 6.9

¼ö¼¼ÈÄ Áõ±â¼Òµ¶

2,228

1,714

2,156

1,561

133.3

135.7

7,186

5,203

 104

 111

 6.0

 6.9

¹«Ã³¸®(´ëÁ¶±¸)

2,009

1,316

1,858

1,088

136.1

125.5

6,193

3,626

  90

  77

 6.2

 6.8

  Ç¥ 3.   Àç¹èÀüÈÄ ¹èÁöÀÇ ¹«±â¼ººÐ ÇÔ·®                        (1997)

±¸ ºÐ

󸮳»¿ë

 NO3-N

(mg/kg)

  P2O5

(mg/kg)

   K    Ca    Mg     Na

         (cmol¡¤kg-1)

1Â÷

Àç¹è

Àç

¹è

Àü

½Å±Ô¹èÁö

Áõ±â¼Òµ¶

¼ö¼¼Ã³¸®

¼ö¼¼ÈÄÁõ±â

¹« ó ¸®

2

44

11

4

53

  2

127

167

141

135

  0.04   0.13      0    0.22

  0.44   5.22    0.65    1.69

  0.22   3.11    0.21    0.34

  0.15   2.18    0.14    0.42

  0.66   7.80    0.93    2.17

Àç

¹è

ÈÄ

½Å±Ô¹èÁö

Áõ±â¼Òµ¶

¼ö¼¼Ã³¸®

¼ö¼¼ÈÄÁõ±â

¹« ó ¸®

41

5

67

54

44

78

153

174

140

192

  1.27   2.31    0.25    0.76

  1.66   3.97    0.38    0.89

  2.51   4.98    0.62    1.26

  1.59   4.55    0.55    1.51

  1.58   2.96    0.31    0.26

2Â÷

Àç¹è

Àç

¹è

Àü

½Å±Ô¹èÁö

Áõ±â¼Òµ¶

¼ö¼¼Ã³¸®

¼ö¼¼ÈÄÁõ±â

¹« ó ¸®

 0

48

11

40

78

  1

113

160

179

169

  0.03   0.17      0     0.13

  0.66   3.06    0.35    1.21

  0.22   3.12    0.22    0.34

  0.16   0.95    0.05    0.31

  1.94   5.77    0.71    1.87

Àç

¹è

ÈÄ

½Å±Ô¹èÁö

Áõ±â¼Òµ¶

¼ö¼¼Ã³¸®

¼ö¼¼ÈÄÁõ±â

¹« ó ¸®

53

21

29

20

63

141

138

167

109

166

  0.71   6.63    0.71    4.20

  0.63   2.61    0.29    0.83

  0.62   3.73    0.41    1.52

  1.59   4.55    0.55    1.51

  1.91   5.09    0.64    1.97

  Å丶Åä 2Â÷ Àç¹èÈÄ ¾ç¾×¿¡¼­ÀÇ Å丶Åä »Ñ¸®ºÐºñ¹°ÀÎ Æä³îÇÔ·®Àº ¹«Ã³¸® ÀçȰ¿ë¹èÁö¿Í Áõ±â¼Òµ¶¹èÁö¿¡¼­ Æä³î ³óµµ°¡ ³ô°Ô ³ªÅ¸³µ´Ù(Ç¥ 4). Wison (1988)Àº ÆÞ¶óÀÌÆ® ¹èÁö¸¦ Áõ±â¼Òµ¶ÇÏ¿© Å丶Å並 Àç¹èÇÑ °á°ú ´ëÁ¶±¸´Â ¹°·Ð ½Å±Ô¹èÁöº¸´Ù Áõ±â¼Òµ¶ÇÑ Ã³¸®±¸¿¡¼­´Â ¼ö·®ÀÌ Áõ°¡µÇ¾ú´Ù°í º¸°íÇÏ¿´À¸³ª º» ½ÃÇè¿¡¼­´Â ÀçȰ¿ë¹èÁöÀÇ »óǰ¼ö·®°ú Å« Â÷À̰¡ ¾ø¾ú´Ù. ÀÌ·¯ÇÑ ÀÌÀ¯´Â ¹èÁö³» ¹«±â¼ººÐÀÇ ÁýÀû¿¡ ÀÇÇÑ ¾çºÐÀÇ ºÒ±ÕÇü°ú ½Ä¹°Ã¼ÀÇ »Ñ¸®ºÐºñ¹°ÀÎ Æä³î°èÅëÀÇ ¹°ÁúÀÌ ¼ö·®À» °¨¼Ò½ÃÄ×À» °¡´É¼ºÀÌ ÀÖ´Ù. ÀçȰ¿ë¹èÁöÀÇ ¾ç¾×À» HPLC·Î Æä³îÀ» ºÐ¼®ÇÑ °á°ú p-hydroxybenzonic acid,  p-coumaric acid¿Í ferulic acid°¡ µ¿Á¤µÇ¾ú´Ù(±×¸² 1). ÀÌ¿Í °°Àº °á°ú´Â Knutsson µî(1996)ÀÇ º¸°í¿Í ÀÏÄ¡ÇÑ´Ù. Æä³î³óµµ¸¦ Á¶»çÇÑ ¾ç¾×À» Å丶Åä Á¾ÀÚ¿¡ ó¸®ÇÏ¿© ¹ß¾ÆÀ²À» Á¶»çÇÑ °á°ú, Æä³î³óµµ°¡ ³ô¾Ò´ø Áõ±â¼Òµ¶ 󸮱¸¿Í ÀçȰ¿ë¹èÁö 󸮱¸¿¡¼­ÀÇ Å丶Åä ¹ß¾Æ°¡ ¾ïÁ¦µÇ¾ú´Ù(Ç¥ 5). º¸¸®ÀÇ °æ¿ì ¾ç¾×³»¿¡ Áú»ê°ú ÀλêÀÇ ³óµµ°¡ ³·À» °æ¿ì coumaric acid³ª vanillic acid¿Í °°Àº Æä³î¿¡ ÀÇÇÏ¿© °Ç¹°ÁßÀÌ °¨¼ÒÇÏ¿´´Ù(Lawlence µî, 1980). ÀÌ¿Í °°Àº °á°ú¸¦ º¼ ¶§ Æä³îÀÌ Å丶Åä ¼ö·®¿¡ ¿µÇâÀ» ÁÙ °¡´É¼ºÀÌ ÀÖ´Ù.

Ç¥ 4. Àç¹èÈÄ ¾Þ¾×ÀÇ ÃÑÆä³î ÇÔ·® ºÐ¼® °á°ú(1997)  

ó  ¸®  ³»  ¿ë

1Â÷Àç¹è(ppm)

2Â÷Àç¹è(ppm)

½Å  ±Ô  ¹è  Áö

Áõ  ±â  ¼Ò  µ¶

¼ö  ¼¼  Ã³  ¸®

¼ö¼¼ÈÄ Áõ±â¼Òµ¶

¹«     Ã³    ¸®

          82

         408

          25

          31

         377

         14

         94

         13

         13

        132

 

Ç¥ 5. 1Â÷Àç¹èÈÄ ¾ç¾×ÀÌ Å丶Åä Á¾Àڹ߾ƿ¡ ¹ÌÄ¡´Â È¿°ú(1997)

 ±¸   ºÐ

ó ¸® ³» ¿ë

3 ÀÏÈÄ

4ÀÏÈÄ

7ÀÏÈÄ

¹ß¾ÆÀ²(%)

¾ïÁ¦Áö¼ö

¹ß¾ÆÀ²(%)

¾ïÁ¦Áö¼ö

¹ß¾ÆÀ²(%)

¾ïÁ¦Áö¼ö

Àç¹èÈľç¾×

¡¨

¡¨

¡¨

¡¨

Æä³îó¸®

Áõ·ù¼öó¸®

½Å ±Ô ¹è Áö

Áõ ±â ¼Ò µ¶

¼ö ¼¼ ó ¸®

¼ö¼¼ÈÄÁõ±â

¹«  Ã³  ¸®

 Ferulic acid 800 ppm

-

  73.7

  62.8

  71.7

  82.6

  64.1

   0.0

  77.5

   5.2

  19.0

   7.5

   0.0

  17.3

 100.0

   0.0

   89.5

   90.7

   87.0

   91.3

   77.0

    0.0

   91.0

   1.6

   0.0

   4.4

   0.0

  16.0

 100.0

   0.0

  94.7

  95.3

  91.3

  91.3

  77.0

  60.4

  93.5

   0.0

   0.0

   2.4

   2.4

  17.7

  35.4

   0.0

 

 

 

 

 

 

 

 

 

±×¸²1. 1Â÷Àç¹èÈÄ ¹«Ã³¸®±¸ ¾ç¾×¿¡¼­ HPLCºÐ¼®¿¡ ÀÇÇÑ Æä³î µ¿Á¤ (1997)

      1 : p-hydroxybenzonic acid(retention time: 1.48 min)

      2 : p-coumaric acid(retention time 2.98 min)

      3 : ferulic acid(retention time 4.03 min)

 

   1998³â 2³âÂ÷ ½ÃÇè¿¡¼­´Â 1997³â ½ÃÇè¿¡¼­ È¿°ú°¡ Àû¾ú´ø ¼ö¼¼¿Í Áõ±â¼Òµ¶ 󸮱¸ ´ë½Å¿¡ ±ÞÅÁ¼Òµ¶À» ³Ö¾î ½ÃÇèÇÑ °á°ú Áß°£»ýÀ°»óȲÀº ÀçȰ¿ë¹èÁö¿¡¼­ ¹«»ì±Õ󸮱¸¿¡¼­ ÃÊÀå ¹× Àý°£ÀåÀÌ Âª¾ÒÀ¸¸ç ½Å±Ô¹èÁö¿¡¼­ °¡Àå ±æ¾ú´Ù(Ç¥ 7). Æò±Õ°ú½ÇÁßÀº ÀçȰ¿ë ¹èÁöÀÇ ¼ö¼¼ÈÄ Áõ±â¼Òµ¶ 󸮱¸¿¡¼­ ´Ù¼Ò ¹«°Å¿î °æÇâÀ̾úÀ¸¸ç °ú½Ç¼ö·®Àº ½Å±Ô¹èÁö Àç¹è½Ã¿Í Â÷À̰¡ ¾ø¾úÀ¸³ª  ±ÞÅÁ¼Òµ¶°ú ¹«Ã³¸®±¸¿¡¼­´Â °¨¼ÒÇÏ´Â °æÇâÀ̾ú´Ù(Ç¥ 8).  

Ç¥ 7. 󸮺° Å丶Åä Áß°£»ýÀ° »óȲ                               (1998)

󸮳»¿ë

¿±Àå(cm)

¿±Æø(cm)

°æ°æ(mm)

ÃÊÀå(cm)

Àý°£Àå(cm)

½Å±Ô¹èÁö

43

31

10.8

136

7.9

¹«»ì±Õ

43

36

9.7

129

7.2

±ÞÅÁ°ü¼Òµ¶

41

33

9.7

133

7.4

¼ö¼¼+Áõ±â¼Òµ¶

43

41

9.5

132

7.5

 

Ç¥ 8. 󸮺° Å丶Åä ¼ö·® ¹× ǰÁú Ư¼º                            (1998)

.

󸮳»¿ë

ÁÖ´ç¼ö·®

(kg/ÁÖ)

»óǰ°úÁß

(kg/ÁÖ)

°ú½ÇÁß

(g/°³)

»óǰ¼ö·®

(kg/10a)

»óǰ¼ö·®Áö¼ö

´çµµ

(Brix)

½Å±Ô¹èÁö

2.89

2.797

169

9,289

100

6.1

¹« »ì ±Õ

2.74

2.54

165

8,476

91

6.1

±ÞÅÁ°ü¼Òµ¶

2.87

2.74

175

9,116

98

6.2

¼ö¼¼+Áõ±â¼Òµ¶

2.89

2.80

183

9,329

100

5.9

 ¶ÇÇÑ 1997³â ½ÃÇè °á°ú¿Í °°ÀÌ ÀçȰ¿ë ¹èÁöÀÇ ¼ö¼¼ÈÄ Áõ±â¼Òµ¶ 󸮿¡¼­ ¹«±â¼ººÐÁß NO3, K, Ca, Mg, NaÀÇ ÇÔ·®Àº °¨¼Ò ÇÏ¿´À¸³ª ÀλêÀÇ °æ¿ì ¼ö¼¼È¿°ú°¡ ¾ø¾ú´Ù(Ç¥ 9). ¼ö¼¼ÈÄ Áõ±â¼Òµ¶Àº »ç¿ëÇÑ ¹èÁö¸¦ ¸ð¾Æ ³õ°í ¹°À» Èê·¯º¸³» ¼ö¼¼¸¦ ÇÑ ´ÙÀ½ ´Ù½Ã Áõ±â¼Òµ¶ ÆÄÀÌÇÁ¸¦ ³ÖÀº ´ÙÀ½ ¿ÏÀüÈ÷ ¹ÐÆóÇÏ°í ¿Âµµ¸¦ 100¡ÉÀÌ»ó ¿Ã·Á¾ß ÇÑ´Ù. ÀÌ·¯ÇÑ  °úÁ¤¿¡¼­ ¹èÁö³»ÀÇ ¹«±âÀÌ¿ÂÀ̳ª Æä³î°ú °°Àº »Ñ¸® ºÐºñ¹°ÀÌ °¨¼ÒµÇ¾î Å丶Åä ¼ö·® ¹× ǰÁúÀ» Çâ»ó½Ãų °¡´É¼ºÀÌ ÀÖ´Ù. ±×·¯³ª ÀÛ¾÷ÀÌ ¹ø°Å·Ó±â ¶§¹®¿¡ Å丶Åä À۱Ⱑ ³¡³­ ÈÄ ±Ù±Ç ±ÞÅÁ°üÀ» ÀÌ¿ëÇÏ¿© ¼Òµ¶È¿°ú¸¦ º¸·Á°í ÇÏ¿´À¸³ª ¹èÁö¿Âµµ°¡ 60¡ÉÀÌ»ó ¿Ã¶ó°¡Áö ¾Ê¾Ò±â ¶§¹®¿¡ »ì±ÕÈ¿°ú°¡ ¶³¾îÁ® »ç»ó±ÕÀÇ ¹Ðµµ´Â ´Ù¼Ò ÁÙ¾îµé¾úÀ¸³ª ±×¶÷À½¼º¼¼±ÕÀº ¹«Ã³¸®±¸¿Í Å« Â÷À̰¡ ¾ø¾ú´Ù(Ç¥ 10).

Ç¥ 9. ÀçȰ¿ë¹èÁöÀÇ Àç¹èÀüÈÄ ¹èÁöÀÇ ¹«±â¼ººÐ ÇÔ·®              (1998)

±¸ºÐ

󸮳»¿ë

NO3-N

(mg¡¤kg-1)

P2O5

(mg¡¤kg-1)

Ex. Cations(cmol¡¤kg-1)

K

Ca

Mg

Na

Àç¹èÀü

(ó¸®ÈÄ)

½Å±Ô¹èÁö

4

13

0.33

0.15

0.04

0.39

¹« »ì ±Õ

22

247

1.34

3.38

1.45

1.54

±ÞÅÁ°ü¼Òµ¶

26

231

1.51

3.54

1.82

1.90

¼ö¼¼+Áõ±â¼Òµ¶

13

223

0.78

2.02

0.86

1.13

Àç¹èÈÄ

½Å±Ô¹èÁö

24

244

0.17

1.81

0.76

1.74

¹« »ì ±Õ

21

384

0.50

2.77

1.04

1.73

±ÞÅÁ°ü¼Òµ¶

19

330

0.47

2.84

1.04

1.82

¼ö¼¼+Áõ±â¼Òµ¶

15

271

0.26

2.07

0.73

1.43

   

Ç¥ 10. 󸮺° ¹èÁöÀÇ ¹Ì»ý¹°»ó                                 (1998)

±¸  ºÐ

󸮳»¿ë

¼¼   ±Õ(cfu/g)

»ç»ó±Õ(cfu/g)

±×¶÷À½¼º

±×¶÷¾ç¼º

Àç¹èÀü

(ó¸®ÈÄ)

½Å±ÔÀç¹è

-

-

-

¹« »ì ±Õ

2.8¡¿105

-

2.0¡¿104

±ÞÅÁ¼Òµ¶

2.7¡¿106

-

1.3¡¿102

¼ö¼¼+Áõ±â¼Òµ¶

3.0¡¿102

-

-

Àç¹èÈÄ

½Å±ÔÀç¹è

2.3¡¿106

-

2.1¡¿104

¹« »ì ±Õ

2.3¡¿104

-

6.8¡¿104

±ÞÅÁ¼Òµ¶

2.7¡¿106

-

2.2¡¿103

¼ö¼¼+Áõ±â¼Òµ¶

2.2¡¿106

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