@article{HGNHB8_2023_v42n4_331,
author={In Bog. Lee and Dae Ho. Jung and Pyoung Ho. Yi and Seung Tak. Jeong and Yoon Kyeong. Kim},
title={Analysis of Soil and Leaf Characteristics of Pear Orchards with Lime-Induced Chlorosis Leaves},
journal={Korean Journal of Environmental Agriculture},
issn={1225-3537},
year={2023},
volume={42},
number={4},
pages={331-337},
doi={10.5338/KJEA.2023.42.4.37},
url={https://doi.org/10.5338/KJEA.2023.42.4.37}
TY - JOUR
AU - Lee, In Bog.
AU - Jung, Dae Ho.
AU - Yi, Pyoung Ho.
AU - Jeong, Seung Tak.
AU - Kim, Yoon Kyeong.
TI - Analysis of Soil and Leaf Characteristics of Pear Orchards with Lime-Induced Chlorosis Leaves
T2 - Korean Journal of Environmental Agriculture
PY - 2023
VL - 42
IS - 4
PB - The Korean Society of Environmental Agriculture
SP - 331-337
SN - 1225-3537
AB - 본 연구에서는 황화증상이 발생한 전국 4개 지역의 배 과원에서 토양 특성과 잎의 특성을 분석하여 황화증상의 원인을 구명하고자 하였다. 황화증상이 발생한 잎의 색은 육안 또는 SPAD와 Hunter 값을 통해 진단할 수 있었다. 황화증상이 발생한 과원의 토양은 정상 과원에 비해 토양의 pH가 유의하게 높았다. 유효토심은 황화증상과 큰 관계가 없었으나, 토양에 석회 등이 과다 시비되는 조건과 결합되어 식물체의 철 흡수를 저해할 가능성이 있다. 황화증상이 발생한 잎에서는 정상엽에 비해 철과 칼슘 함량이 유의하게 낮았고, 마그네슘 함량이 유의하게 높았다. 따라서 고온다습한 6-7월경 2차 신초 발달이 일어나는 시기에 집중적으로 황화증상이 발생하는 것은 철과 칼슘의 흡수 저해와 밀접한 관계가 있는 것으로 판단된다. 이를 해결하기 위해서는 석회의 과다 시비를 피하고, 철 성분을 함유한 비료를 엽면시비하거나 수관부 토양에 관주하는 방식이 적합하다.Physiological disorders in pear fruit are mainly caused by problems during the growing season, such as lack of calcium in the soil, poor drainage, low porosity, vigorous pruning, and excessive fruiting. In this study, soil physicochemical properties and leaf characteristics were analyzed in pear orchards in four regions of Korea where chlorosis symptoms occurred to determine the causes of chlorosis. The color of chlorotic leaves was diagnosed using the naked eye or SPAD and Hunter values. The soil of the chlorotic orchard had a significantly higher soil pH than that of the regular orchard. Although adequate soil depth was not significantly associated with chlorosis, combined with over-fertilization of the soil with lime, it could potentially impair plant iron uptake. Chlorotic leaves had significantly lower iron and calcium contents and significantly higher magnesium contents than those of regular leaves. Therefore, the intensive occurrence of chlorosis during secondary shoot development around June and July when it is hot and humid may be due to impaired iron and calcium absorption, leading to physiological disorders. To solve this problem, avoiding the over-application of lime and applying foliar fertilizers containing chelated iron is recommended.
KW - Calcium
KW - Ca/Mg ratio
KW - Fe deficiency
KW - Physiological disorder
DO - 10.5338/KJEA.2023.42.4.37
UR - https://doi.org/10.5338/KJEA.2023.42.4.37
ER -
Lee, I. B., Jung, D. H., Yi, P. H., Jeong, S. T., & Kim, Y. K. (2023). Analysis of Soil and Leaf Characteristics of Pear Orchards with Lime-Induced Chlorosis Leaves. Korean Journal of Environmental Agriculture, 42(4), 331-337.
Lee, IB, Jung, DH, Yi, PH, Jeong, ST, et al. 2023, “Analysis of Soil and Leaf Characteristics of Pear Orchards with Lime-Induced Chlorosis Leaves”, Korean Journal of Environmental Agriculture, vol. 42, no. 4, pp. 331-337. Available from: doi:10.5338/KJEA.2023.42.4.37
Lee, In Bog et al. “Analysis of Soil and Leaf Characteristics of Pear Orchards with Lime-Induced Chlorosis Leaves.” Korean Journal of Environmental Agriculture 42.4 (2023): 331-337.
1. Lee IB, Jung DH, Yi PH, Jeong ST, Kim YK. Analysis of Soil and Leaf Characteristics of Pear Orchards with Lime-Induced Chlorosis Leaves. Korean Journal of Environmental Agriculture [Internet]. 2023;42(4): 331-337. Available from: doi:10.5338/KJEA.2023.42.4.37.
Lee, In Bog, Dae Ho Jung, Pyoung Ho Yi, Seung Tak Jeong and Yoon Kyeong Kim. “Analysis of Soil and Leaf Characteristics of Pear Orchards with Lime-Induced Chlorosis Leaves.” Korean Journal of Environmental Agriculture 42, no.4 (2023): 331-337. doi: 10.5338/KJEA.2023.42.4.37.