Uptake of Fe and Mn in Red Pepper and Tomato Plants under Different Soil Conditions
2009
Lee, J.Y., National Academy of Agricultural Science, RDA, Suwon, Republic of Korea | Sung, J.K., National Academy of Agricultural Science, RDA, Suwon, Republic of Korea | Park, J.H., National Academy of Agricultural Science, RDA, Suwon, Republic of Korea | Lee, S.Y., National Academy of Agricultural Science, RDA, Suwon, Republic of Korea | Park, S.Y., National Academy of Agricultural Science, RDA, Suwon, Republic of Korea | Lee, Y.J., National Academy of Agricultural Science, RDA, Suwon, Republic of Korea | Kim, T.W., Hankyong National University, Ansung, Republic of Korea | Song, B.H., Chungbuk National University, Cheongju, Republic of Korea | Jang, B.C., National Academy of Agricultural Science, RDA, Suwon, Republic of Korea
This experiment was performed to understand the relationship between uptake of Fe and Mn by plants, red pepper and tomato, and soil physico-chemical properties under different soil conditions at an environmentally controlled chamber in NAAS(National Academy of Agricultural Science) in 2008. After the dipping for 3 days, four treatments, dipping, dipping+aeration, drainage, drainage+aeration, were set up to investigate the changes in soil redox potential and moisture content. Drainage+aeration changed soil to the oxidation condition from 72 hrs of treatment, and soil moisture content was immediately reduced after treatment. Uptake of Fe and Mn of red pepper was investigated with two treatments, soil only and the mixed[soil(50%) : bed soil(35%) : bark(15%)]. Red pepper leaves taken at 30 days after treatment absorbed excessively Mn from the treatment of soil only and the mixed, and thus uptake of iron was strongly reduced. Also, uptake pattern of Fe and Mn of tomato was examined with four treatment, soil only, soil(50%) + rice straw(50%), soil(50%) + compost(50%) and soil + aeration. Contents of Fe and Mn in tomato leaves was measured at 60 days after treatment. Fe content was the greatest in soil(50%) + compost(50%) whereas Mn content was the highest in soil only. As a result of this experiment, plant growth was stronger influenced by soil moisture content than redox potential or porosity, and the oxidation status of soil was likely to promote that plant predominantly absorbed Mn from soil and thus resulted in Fe deficiency.
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