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KMID : 0903620010420040444
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Journal of the Korean Society for Horticultural Science
2001 Volume.42 No. 4 p.444 ~ p.448
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Influence of Organic Matter Content in Orchard Soils on Leaf Mineral Content , Root Growth , and Fruit Quality of Pear (Pyrus pyrifolia)
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Abstract
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This study was carried out to investigate the influence of soil organic matter contents on root growth, leaf mineral content, and fruit quality of pears (Pyrus pyrifolia cv. Niitaka). Orchards were classified according to the soil organic matter content (0.50-1.00%, 1.01-1.50%, 1.51-2.00%, 2.01-3%). The weight of fibrous roots with diameter less than 1 ㎜, root activity, leaf mineral content, fruit firmness, and soluble solids content were measured in the orchards. Soil N, P, K, Ca, and Mg contents were higher in orchard with higher organic matter, and there were significant differences in soil Ca and P contents. Organic matter content was highly correlated with fibrous root weight (r=0.66, P=0.05), root activity (r=0.57, P=0.05), and leaf N (r=0.36, P=0.05), Ca (r=0.75, P=0.05) and Mn (r=-0.40, P=0.05) contents. Organic matter content in orchard soil affected the pear tree growth and fruit quality and thus sustained the production of high quality fruit.
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