Effect of Nitrogen Fertilization levels on Growth and Isoflavone Content in Soybean
2006
Lee, M.J. (National Institute of Crop Science, RDA, Suwon, Republic of Korea), E-mail: esilvia@rda.go.kr | Park, J.C. (National Institute of Crop Science, RDA, Suwon, Republic of Korea) | Oh, Y.J. (National Institute of Crop Science, RDA, Suwon, Republic of Korea) | Kim, K.H. (Rural Development Administration, Suwon, Republic of Korea) | Kim, H.S. (Seonam University, Namwon, Republic of Korea) | Lee, S.B. (National Institute of Crop Science, RDA, Suwon, Republic of Korea) | Kim, J.G. (National Institute of Crop Science, RDA, Suwon, Republic of Korea)
The nitrogen fertilization effect on growth characteristics and isoflavone content was investigated in this study, and isoflavone analyzed by HPLC with photodiode array (PDA)detector and reverse-phase C∧18 column. Fertilization levels were no-fertilization, no nitrogen, 50% decreased in nitrogen, standard and 50% increased in nitrogen fertilization. The 50% increased nitrogen fertilization showed the highest growth characteristics then other fertilization level and the number of pod and seed showed maximum value 31.9 and 72.3, respectively.
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