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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.14, no.3, 2005³â, pp.182-189
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Polyacrylamide °íÈí¼ö¼º ¼öÁöÀÇ È¥ÇÕ ºñÀ²ÀÌ »óÅäÀÇ ¹°¸®¼º¿¡ ¹ÌÄ¡´Â ¿µÇâ
( Effect of Incorporation Rate of Polyacrylamide Hydrogel on Changes in Physical Properties of Root Media ) |
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| º» ¿¬±¸´Â È¥ÇÕ»óÅäÀÇ º¸¼ö¼º Áõ°¡¸¦ À§ÇÏ¿© polyacrylamide °íÈí¼ö¼º ¼öÁö Stocksorb C¸¦ È¥ÇÕÇÒ °æ¿ì »óÅäÀÇ ¹°¸®¼º¿¡ ¹ÌÄ¡´Â ¿µÇâÀ» ¹àÈ÷±â À§ÇÏ¿© ¼öÇàÇÏ¿´´Ù. ³×Á¾·ù È¥ÇÕ»óÅä, ÇÇÆ®¸ð¾² + ¹ö¹Ìŧ¶óÀÌÆ®(1:1 , v/v; PV), ÇÇÆ®¸ð¾²+ºÎ¼÷¿Õ°Ü(1:1, v/v; PR), ÇÇÆ®¸ð¾²+ºÎ¼÷Åé¹ä(1:1, v/v; PS), ±×¸®°í ÇÇÆ®¸ð¾²+ºÎ¼÷¼öÇÇ(1:1, v/v; PB)¸¦ Á¶Á¦ÇÏ´Â °úÁ¤¿¡¼ STSB¸¦ È¥ÇÕÇϰí, ÇÃ¶ó½ºÆ½ Æ÷Æ®¿¡ ÃæÀüÇÏ¿´À¸¸ç, 5ÁÖ ÈÄ¿¡ »óÅäÀÇ ¹°¸®Àû Ư¼ºÀ» ÃøÁ¤ÇÏ¿´´Ù. STSBÀÇ È¥ÇÕºñÀ²ÀÌ Áõ°¡ÇÒ¼ö·Ï PV, PS ¹× PB »óÅäÀÇ °ø±Ø·üÀÌ Áõ°¡ÇÏ¿© $5{%}$ ¼öÁØÀÇ Åë°èÀûÀÎ Â÷À̰¡ ÀÎÁ¤µÇ¾ú°í, Á÷¼± ¶Ç´Â 2Â÷°î¼±È¸±Í°¡ ¼º¸³ÇÏ¿© °æÇâÀ» ãÀ» ¼ö ÀÖ¾ú´Ù. STSBÀÇ È¥ÇÕºñÀ² Áõ°¡·Î PS¿Í PB»óÅäÀÇ ¿ë±â¿ë¼ö·®ÀÌ ¶Ñ·ÇÇÏ°Ô Áõ°¡ÇÏ¿´À¸³ª PV ¹× PR»óÅä¿¡¼´Â STSBÀÇ È¥ÇÕºñÀ²¿¡ µû¸¥ 󸮰£ Â÷À̰¡ ÀÎÁ¤µÇÁö ¾Ê¾Ò´Ù. ƯÈ÷ STSBÀÇ È¥ÇÕÀº PV PS¹× PB »óÅäÀÇ ±â»ó·üÀ» ¶Ñ·ÇÇÏ°Ô Áõ°¡½ÃÄÑ Ã³¸®°£ Åë°èÀûÀÎ Â÷ÀÌ¿Í ÇÔ²² Á÷¼± ¹× 2Â÷°î¼±È¸±Í°¡ ¼º¸³ÇÏ¿© °æÇâÀÌ ¶Ñ·ÇÇÏ¿´´Ù. °íÈí¼ö¼º ¼öÁöÀÇ È¥ÇÕºñÀ²ÀÌ ³ô¾ÆÁú¼ö·Ï 4.90 kPa, 9.81 kPa, 29.4 kPa¹× 1.5 MPa Åä¾ç ¼öºÐÀå·Â ÇÏ¿¡¼ Á¸ÀçÇÏ´Â ¼öºÐ·®ÀÌ ¸¹¾Ò´Ù. °¢ »óÅ亰·Î 29.4 kPaÀ̳ª 1.5 MPa¿¡¼ Á¸ÀçÇÏ´Â ¼öºÐÀº PV È¥ÇÕ»óÅä¿¡¼ Àû¾ú°í, PB¿Í PR È¥ÇÕ»óÅä¿¡¼ À¯»çÇÑ ¼öÁØÀ̾úÀ¸¸ç, PS È¥ÇÕ»óÅä¿¡¼ °¡Àå ¸¹¾Ò´Ù. ÀÌ´Â °íÈí¼ö¼º ¼öÁöÀÇ È¥ÇÕºñÀ²ÀÌ ³ô¾ÆÁü¿¡ µû¶ó »óÅä°¡ º¸À¯ÇÏ´Â ¼öºÐ·®ÀÌ Áõ°¡ÇÏÁö¸¸ ½Ä¹°ÀÌ ½±°Ô Èí¼öÇÒ ¼ö ÀÖ´Â ¼öºÐ·®ÀÌ Áõ°¡ÇÏÁö ¾ÊÀ½À» ÀǹÌÇÑ´Ù. |
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| This research was conducted to determine physical properties of four root media, peatmoss + vermiculite (1:1, v/v; PV), peatmoss + composted rice hall (1:1, PR), peatmoss + composted saw-dust (1:1 : PS) and peatmoss + composted pine bark (1:1 PB), as influenced by incorporation rate of Stock-sorb C (STSB). Each root medium containing STSB was packed in 22 cm diameter plastic pot and the physical properties were determined at 5 weeks after packing. As incorporation rate of STSB were elevated, total porosity increased in PV, PS and PB media with statistical differences at $5{%}$ level. Those also resulted in increase of container capacity in PS and PB media, but statistical differences were not observed in PV and PR media. Elevated incorporation rate of STSB in PV, PS and PB media resulted in increase of air space with statistical differences. Trends in air space of the three root media showed a linear as well as quadratic responses to STSB contents of media. As incorporation rate of STSB increased, more water was retained in four root media at the soil moisture tension of 4.90 kPa, 9.81 kPa, 29.4 kPa and 1.5 MPa. The amount of water retained in PS medium was the highest at the moisture tension at 29.4 kPa and 1.5 MPa followed by PB, PR and PV medium. These results indicated that elevation of incorporation rate of STSB to various root media increased moisture retention capacity, but did not increase the available water holding capacity. |
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| Ű¿öµå |
| °ø±Ø·ü;¹«È¿¼ö;¾×»ó·ü;À¯È¿¼ö;available water;container capacity;total porosity;unavailable water; |
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»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.14, no.3, 2005³â, pp.182-189
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200504840787929)
¾ð¾î : Çѱ¹¾î |
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| ³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø |
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