An Effect of Phosphate Fertilizer on Accumulation of Na, Mg, K and Ca in Shallot Plants (Allium ascalonicum L).

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  • MELLAWATI June
    Center for Research and Development of Isotopes and Radiation Technology, National Nuclear Energy Agency
  • FURUKAWA Jun
    Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • TANOI Keitaro
    Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • HAYASHI Yoshitake
    Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • IIKURA Hiroshi
    Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • IKEUE Natsuko
    Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • NAKANISHI Tomoko M.
    Graduate School of Agricultural and Life Sciences, The University of Tokyo

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Other Title
  • シャロット (<I>Allium ascalonicum</I> L) におけるリン肥料の施肥量を変化させた場合のNa, Mg, KおよびCaの吸収量の変化について
  • Effect of Phosphate Fertilizer on Accumulation of Na Mg K and Ca in Shallot Plants Allium ascalonicum L

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Abstract

The accumulation patterns of Na, K, Ca and Mg in tissue plants of shallots (Allium ascalonicum L) during its growth have been studied. In this experiment, local variety of shallots from Brebes farm, Central Java Indonesia was applied with two treatments of phosphate fertilizer (50 and 400 P2O5 kg/ha) . Nutrient elements were measured using Instrumental Neutron Activation Analysis (INAA) techniques. The samples were irradiated using thermal neutron flux 1.5 × 1013 n cm-2 s-1 for 10 s and 2.5 min cooling times at the JRR-3 M Research Reactors of Japan Atomic Energy Research Institute. There is a tendency that during growth, K content in the bulbs increased until harvest time, and the concentrations were higher than Mg and Ca. Mg content of leaves increased until five weeks and then decreased until senescent time, their concentrations are higher than K and Ca. The addition of P2O5 until 400 kg/ ha caused significantly difference in small amounts of Na in the bulbs and stems, K in the bulbs, stems and leaves, Mg in all parts of plants also Ca in the roots, stems and leaves. Na content of roots, bulbs, stem and leaves were smallest comparing with K, Ca and Mg.

Journal

  • RADIOISOTOPES

    RADIOISOTOPES 51 (12), 533-539, 2002

    Japan Radioisotope Association

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