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Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ / v.4, no.2, 1995³â, pp.152-158
±Ù±Ç¿Âµµ¿Í ¾ç¾×ÁßÀÇ $ extrm{NO}_3$-N/$ extrm{NH}_4$-N ºñÀ²ÀÌ ¾ç¾×Àç¹è °íÃßÀÇ »ýÀ°¤ý¼ö·®¿¡ ¹ÌÄ¡´Â ¿µÇâ
( Effect of Root-zone Temperature and Ratios of $ extrm{NO}_3$-N to $ extrm{NH}_4$-N in the Nutrient Solution on the Growth and Yield of Hydroponically Grown Pepper Plant )
Á¤Çöº¹; ³ó¾îÃÌÁøÈï°ø»ç ½Ã¼³¿µ³óó;
 
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°íÃßÀÇ ¾ç¾×Àç¹è¿¡¼­ ±Ù±Ç¿Âµµ¿Í ¾ç¾×Áß Áú¼ÒÇüÅÂÀÇ °ü°è¸¦ ¾Ë¾Æº¸±â À§ÇÏ¿© 3¼öÁØ (18$^{circ}C$, 22$^{circ}C$, 26$^{circ}C$ÀÇ ±Ù±Ç¿Âµµ¿¡¼­ ¾ç¾×Áß Áú¼ÒÇüÅÂÀÇ ºñÀ²À» ´Þ¸®ÇÏ¿© (NO$_3$-N/NH$_4$-N = 10:0, 8:2), °íÃßÀÇ »ýÀ°, ¼ö·®, ±¤ÇÕ¼º¼Óµµ, ¿±·Ï¼Ò ÇÔÀ¯À² ¹× ±ÙÀÇ È°¼º¿¡ ¹ÌÄ¡´Â ¿µÇâ¿¡ ´ëÇÏ¿© °ËÅäÇÏ¿´´Ù. ÃÊÀå, ¿±¼ö, °æ°æ°ú ¿±, ±ÙÀÇ »ýüÁß ¹× °Ç¹°ÁßÀº ±Ù±Ç¿Âµµ¿¡ ÀÇÇÑ ¿µÇâÀº ¾ø¾úÀ¸³ª, NH$_4$-NÀÇ Ã·°¡¿¡ ÀÇÇÏ¿© 18$^{circ}C$, 22$^{circ}C$, $25^{circ}C$ÀÇ ¸ðµç ±Ù±Ç¿Âµµ¿¡¼­ ÃÊÀå, ¿±¼ö, °æ°æ°ú ¿±, ±ÙÀÇ »ýüÁß ¹× °Ç¹°ÁßÀº Áõ°¡ÇÏ¿´´Ù. °íÃßÀÇ °úÀåÀº 18$^{circ}C$¿Í 26$^{circ}C$ÀÇ ±Ù±Ç¿Âµµ¿¡¼­ NH$_4$-NÀÇ Ã·°¡¿¡ ÀÇÇÏ¿© ¾à°£ ±æ¾îÁö´Â °æÇâÀ̾ú°í, ÁÖ´ç °ú¼ö ¹× ¼ö·®Àº NH$_4$-NÀÇ Ã·°¡¿¡ ÀÇÇÏ¿© ¸ðµç ±Ù±Ç ¿Âµµ¿¡¼­ Áõ°¡ÇÏ¿´´Ù. ±¤ÇÕ¼º¼Óµµ´Â ±Ù±Ç¿Âµµ°¡ ³ô¾ÆÁú¼ö·Ï ÀúÇϵǾúÀ¸³ª, NH$_4$-NÀÇ Ã·°¡¿¡ ÀÇÇÏ¿© 18$^{circ}C$, 22$^{circ}C$, 26$^{circ}C$ÀÇ ¸ðµç ±Ù±Ç¿Âµµ¿¡¼­ À¯ÀÇÀûÀ¸·Î ³ô¾ÆÁ³´Ù. ¿±·Ï¼Ò »ó´ëÀûÇÔÀ¯·®Àº 22$^{circ}C$ÀÇ ±Ù±Ç¿Âµµ¿¡¼­ ³ô¾ÆÁ³À¸¸ç, NH$_4$-NÀÇ Ã·°¡¿¡ ÀÇÇÏ¿© 18$^{circ}C$, 22$^{circ}C$, 26$^{circ}C$ÀÇ ¸ðµç ±Ù±Ç¿Âµµ¿¡¼­ ³ô¾ÆÁ³´Ù. ±ÙÀÇ È°¼ºÀº 26$^{circ}C$ÀÇ ±Ù±Ç¿Âµµ¿¡¼­ ³ô¾ÆÁ³°í, NH$_4$-NÀÇ Ã·°¡¿¡ ÀÇÇÏ¿© 18$^{circ}C$, 22$^{circ}C$, 26$^{circ}C$ÀÇ ¸ðµç ±Ù±Ç¿Âµµ¿¡¼­ ³ô¾ÆÁ³´Ù.
This experiment was undertaken in order to clarify effect of NO$_3$-N/NH$_4$-N ratios(NO$_3$/NH$_4$ : 10:0, 8:2) in the nutrient solution on growth, yield, photosynthetic rate, relative concentration of chlorophyll and root activity of hydroponically grown pepper plants at three different root- zone temperatures of 18$^{circ}C$, 22$^{circ}C$ and 26$^{circ}C$. Plant height, leaf number, stem diameter, fresh and dry weight of leaf and root were no effect in by three root- zone temperatures. However, leaf number, stem diameter, fresh and dry weight of leaf and stem, dry weight of root at 18$^{circ}C$, 22$^{circ}C$ and $25^{circ}C$ increased when NH$_4$-N was added to the solution. Under root-Bone temperatures of 18$^{circ}C$, 26$^{circ}C$ condition, fruit length were longer by the addition of NH$_4$-N. Fruit number and yield increased by the addition of NH$_4$-N at three root-zone temperatures. Photosynthetic rate decreased as root - zone temperature increased. Under root-zone temperatures of 18$^{circ}C$, 22$^{circ}C$ and 26$^{circ}C$ condition, photosynthetic rate increased significantly by the addition of NH$_4$-N. Chlorophyll content of plants increased at 22$^{circ}C$. Under root-zone temperatures of 18$^{circ}C$, 22$^{circ}C$ and 26$^{circ}C$ condition, chlorophyll content of plants increased by the addition of NH$_4$-N. Root activity of increased at 26$^{circ}C$ Under root-Bone temperatures of 18$^{circ}C$, 22$^{circ}C$ and 26$^{circ}C$ condition, root activity increased by the addition of NH$_4$- N.
 
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±Ù±Ç¿Âµµ;¾ç¾×;°íÃß;±¤ÇÕ¼º¼Óµµ;»ó´ë ¿±·Ï¼ÒÇÔ·®;±ÙÀÇ È°¼º;root-zone temperature;nutrient solution;pepper;photosynthetic rate;relative concentration of chlorophyll;root activity;
 
»ý¹°È¯°æÁ¶ÀýÇÐȸÁö / v.4, no.2, 1995³â, pp.152-158
Çѱ¹»ý¹°È¯°æÁ¶ÀýÇÐȸ
ISSN : 1229-4675
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199511922404617)
¾ð¾î : Çѱ¹¾î
³í¹® Á¦°ø : KISTI Çѱ¹°úÇбâ¼úÁ¤º¸¿¬±¸¿ø
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