저면관수 재배에서 완효성 비료의 양이 배지의 EC 및 일일초와 살비아의 생장에 미치는 영향 (Effect of Application Rate of a Controlled Release Fertilizer on the Changes in Medium EC and Growth of Subirrigated Vinca and Salvia)

서지정보

· 발행기관 : 한국화훼학회
· 수록지 정보 : 화훼연구 / 16권 / 2호 / 112 ~ 117페이지
· 저자명 : 강종구, 이인호

초록

플러그육묘된일일초와살비아의묘를 145mL 용적의사각형플라스틱포트에 peat(60%)와 perlite(40%) 로구성된인공토양을채운후정식하였다. 완효성비료의양이배지의 EC와식물의생장에미치는영향을구명하기위하여포트당완효성비료를(14-14-14 Osmocote, 14N-6.2P-11.6K) 0, 0.5, 1.0, 1.5, 2.0 또는 4.0g으로 정량하여정식전배지와혼합하였다. 식물은 1일 1회수돗물을저면관수하며재배하였다. 배지의 EC는식물의종류와관계없이완효성비료의양이증가할수록높았다. 두식물모두에서낮은비료농도에서는식물체의생육이진전되어도배지의 EC가변하지않았으나 2.0~4.0g 처리에서는생육이진전되면서배지의 EC가낮아졌다. 초의최대엽면적, 초장과건물중은완효성비료의양이 2.0~4.0g 처리했을때얻었으며이때배지의 EC는생육전기간동안1.0~1.7dS ·m ?1 범위에있었다. 살비아의엽면적, 건물중과엽록소함량은완효성비료의양이많을수록증가해서 4.0g 처리에서최대를보였으며이때배지의
EC는생육전기간동안 1.0~4.0dS ·m 범위에있었다. 살비아의초장은 2.0~4.0g 처리에서최대를보였다. 완효성비료의양이증가할수록 초의식물체내 N, P, K, Mg, S함량은높았던반면 Ca함량은낮
았다. B와 Mn의함량은비료의양이적을수록증가
하였다.

영어초록

act.Plug seedlings of vinca (Catharanthus roseus L. ‘Pacifica Punch’) and salvia (Salvia splendens
F. Sellow ex Roem & Schult ‘Maestro’) were transplanted into square plastic pots (145 mL volume) filled with a soilless growing medium. To determine the effect of application rate on the growing medium EC and growth of plants, 0, 0.5, 1.0, 1.5, 2.0 and 4.0 g per pot of a controlled release fertilizer (14-14-14 Osmocote, 14N-6.2P-11.6K) were mixed with the growing medium. Plants were subirrigated daily with tap water. In both vinca and salvia, growing medium EC increased as application rate was elevated. Growing medium EC was relatively constant over a whole crop period when the application rate was less than 1.5 g per pot, while it decreased throughout the experiment at higher application rates such as 2.0 to 4.0g per pot in both spe-cies. The greatest leaf area, plant height, and shoot dry weight of vinca were obtained when plants were fer-
plants were fertilized with 4.0 g per pot, resulting in growing medium EC of 1.0~4.0 dS · m throughout the experiment. Plant height of salvia was the greatest when plants were fertilized with 2.0 to 4.0g per pot. Con-centrations of nitrogen (N), phosphorus (P), potassium (K), magnesium (Mg), and sulfur (S) in the shoots of vinca increased, while concentration of calcium (Ca) decreased with elevated application rates. Concentra-tions of boron (B) and manganese (Mn) in the shoots of vinca increased as the application rate decreased.

참고자료

· 없음