土壌中の高濃度ナトリウム塩および塩化物がキュウリの生育と無機成分の吸収に及ぼす影響

概要

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The effect of high concentrations of sodium salts or chlorides in soil on the growth of cucumber(Cucumis sativus L.)and the uptake and translocation of minerals were investigated. 1)The growih inhibition rates on the basis of dry weight were different depending on salts, but they were not related to the electric conductivities(EC)in the soil solution. 2)The orders of growth inhibition were Cl, CO_3, NO_3, PO_4> SO_4 in the sodium salt series, and Na, NH_4>K, Mg, Ca in the chloride series. The growth inhibition rates of the sodium salt series tended to be larger than those of the chloride series. 3)In the sodium salt series, potassium concentrations in the roots were decreased antagonistically when sodium concentrations were increased. In the chloride series, the nitrate concentrations in the leaves, stems and roots were decreased antagonistically when chloride concentrations were increased. The calcium concentrations in the leaves and stems, and the magnesium concentrations in the leaves were decreased in the chloride series.
社団法人日本土壌肥料学会の論文
1996-08-05