Dry Weight and Inorganic Nutrient Contents in Different Parts of Container-Grown Highbush Blueberry ‘Duke’ with or without Hydroponic Solution Supply

Abstract

This experiment was conducted to understand nutrient uptake of container-grown highbush blueberries in plastic film house. In March 2013, one-year-old 'Duke' was planted in a 180-L container mixed with peatmoss (130 L) and perlite (40 L), and hydroponic solution was supplied (fertilization) or not (non-fertilization) until October 2020. Hydroponic solution consisted of NO 3 -N 4.6, NH 4 -N 3.4, PO 4 -P 3.3, K 3, Ca 4.6, and Mg 2.2 mmol L -1 and the non-fertilization was supplied with only underground water. In October 2020, total dry weight of a blueberry increased 1.5-fold more in the fertilization than in the non-fertilization. Dry weight and inorganic nutrient content were the greatest in root than in leaf, shoot, old branch, and cane, indicating importance of root as a reserve storage organ. Fertilization increased dry weight by 2-fold and inorganic nutrient contents of root by 2.2 -2.6-fold. Total content of each nutrient in a bush increased 1.8 -2.2-fold more by the fertilization. In non-fertilized treatment, maintaining dry weight and nutrient contents for 8 years indicated that plants absorbed the nutrients to some extent through mineralization of peatmoss medium and underground water.

Occurrence of Crown Gall and Growth Responses of Korean Raspberry Grown in Container Supplied with Nutrient Solution

“…또한 용기재배에 자동양수분공급장치를 이용하면 수분과 양분의 적절한 조절이 쉬워 나무의 건전한 생육을 도모함으로써 병원균에 대한 저항력을 높일 수 있 을 것이다. 용기재배에서는 적정량의 양분공급이 매우 중요하므로 블루베리, 라즈베리, 포도의 경우 효율적인 양액재 배 기술들이 보고되어 왔다 (Himelrick and Dozier, 1994;Kim et al, 1999;Jun et al, 2006;Cheon et al, 2019Cheon et al, , 2021a. 수분과 함께 공급되는 양액의 공급량과 공급횟수는 양액의 농도와 함께 작물의 생육에 영향을 미치기 때문에 상토의 특성, 환경요인, 작물 생육 등에 맞추어 조절되어야 한다 (Bohme, 1995;Lee et al, 1998;Cheon et al, 2021b).…”