전북 부안지역 사과원 경영 규모별 수체 무기 영양에 관한 연구 = Mineral Nutritional Condition of Apple Trees in Relation to Orchard Management Size in Buan Area,Chonbuk Province

다국어 초록 (Multilingual Abstract)

Optimum apple(Malus domestica Borkh.) orchard size should be established to maximize production efficiency. The reasonable mineral nutritional condition in tree should be also maintained for high quality apple production as well as environmental conservation in apple orchards. _ Mineral content of leaves and soil according to apple orchards size were surveyed in order to recommend the optimal mineral nutritional status along to orchard size in Chonbuk province. The orchard size were classified into three range; small size for 1.5ha below, medium size for 1.5~2.0ha and large size for over 2.0ha. Medium size orchard showed optimum pH(6.1 ±0.7), highest organic matter content(2.9±0.6%) and medium P2O5 content(461±148mg · kg-1). Exchangeable cation in soil such as K, Ca and Mg was a fewer content than that in other size orchard but it was as high as 3 times than the recommendable content in top soil as well as subsoil. Leaf content showed the highest in N and Ca, but p, ]K, and Mg were medium content, when compared to other size orchards. The content of element except K was similar to the optimum standard level, but K is a little higher than the standard level. However, there was no significant relationship between mineral contents of soil and leaf. The relatively better nutrition리 condition of medium size orchard considered to be caused from the optimal management size in apple orchard.