Rockwool과 Phenolic Foam 배지에서 양액공급 방법이 파프리카(Capsicum annuum) ‘Veyron’의 생육과 수량에 미치는 영향

• Published in: Weon'ye gwahag gi'sulji Vol. 31; no. 2; pp. 179 - 185
• Main Authors: 김광수(Kwang Soo Kim), 이용범(Yong Beum Lee), 황승재(Seung Jae Hwang), 정병룡(Byoung Ryong Jeong), 안철근(Chul Geon An)
• Format: Journal Article
• Language: Korean
• Published: 한국원예학회HST 2013; 한국원예학회
• Subjects: 농학; blossom end rot; irrigation strategy; 함수율; accumulated radiation; 누적일사량; 배지; water content; 배꼽썩음과; 관수전략; substrate
• ISSN: 1226-8763; 2465-8588
• DOI: 10.7235/hort.2013.12179

파프리카 수경재배용으로 사용되고 있는 암면을 대체하기 위해 개발 배지인 Phenolic foam(LC, Oasis Co.)의 물리특성에 맞는 양액공급방법을 구명하기 위해 양액공급 방법을 누적일사량 100J․cm-2에 주당 1회 공급량 100mL(100-100)를 대조구로 90J·cm-2에 주당 1회 공급량 90mL(90-90),90J·cm-2에 주당 1회 공급량 80mL(90-80) 등 3처리를 두고Rockwool 배지와 함께 비교하였다. 양액공급 방법별 배액률은 100-100이 Rockwool에서 33.8%, LC에서 36.7%로 높았고 90-80이 Rockwool에서 30.4%, LC에서 33.7%로 낮았다. Rockwool 배지의 함수률과 EC는 63.6-68.9%, 4.4-5. dS·m-1, LC 배지는 52.9-58.8%, 5.5-6.5 dS·m-1를 유지하였다. 100-100과 90-90 처리는 90-80 처리보다 생육이 촉진되어 과실이 크고 평균과중이 무거웠다. 착과수는 90-80 처리가 Rockwool 배지에서 주당 8.0개, LC 배지에서 8.3개로가장 많았다. 상품과수는 90-90 처리가 가장 많았고 비상품과수는 90-80 처리가 소과와 배꼽썩음과의 발생이 많아 주당 1.7-1.8개로 가장 많았다. 수량은 90-90 처리가 높았다. This study was carried out to find a reasonable irrigation method of a nutrient solution for the phenolic foam slab (foam LC) used in a trial experiment to substitute the rockwool slab in the production of paprika (Capsicum annuum ‘Veyron’). 100, 90, and 80 mL of a nutrient solution was supplied per plant each time when the accumulated radiation reached to 100, 90 J·cm-2, and they were named as the 100-100,90-90, and 90-80 treatment, respectively. The drain percentage per plant of the 100-100 treatment was high by 33.8% in rockwool and 36.7% in foam LC (Lettuce Cube) and that of 90-80 treatment was low by 30.4%and 33.7%. The water content and EC of the rockwool slab were maintained in the range of 63.6-68.9%and 4.4-5.1 mS·cm-1, while those of the foam LC slab were in the range of 52.9-58.8% and 5.5-6.5 mS·cm-1. The plant height and leaf size of the 100-100 and 90-90 treatments increased in a similar manner, while those of the 90-80 treatment decreased and those of the rockwool were greater than those of the foam LC. The fruit size and weight of the 100-100 and 90-90 treatments were similarly bigger and heavier than those of the 90-80 treatment. The number of fruits harvested per plant was the greatest in the 90-80 treatment with 8 and 8.3 fruits in the rockwool and foam LC. The number of marketable fruits in the rockwool and foam LC was the greatest with 18.1 and 18.2, respectively, in the 90-90 treatment, while that in the 90-80treatment was 17.2 and 16.8, respectively. The number of unmarketable fruits of the 90-80 treatment was the greatest (1.7-1.8 fruits per plant) in both the rockwool and foam LC, and most of them were small sized or blossom end rot fruits. The yield of the 90-90 treatment was the greatest among the irrigation. KCI Citation Count: 10