植物のマグネシウム吸収に対する共存カチオンの効果に関する研究(第1報) : 粘土の置換性Mg, K並びにCaの溶出に就いて

概要

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The reciprocal offects of Mg and K or Ca on the release of these cations from Bentonite and Kaolinite by relatively small amount of H were investigated, the results being as follows : (1) Mg-K relationship When both cations were present on these clays, the percent release of Mg was decreased as the increase of K/Mg ratio, the curve of decrease being relatively sharp at the first half. But Na was more effective than K in depressing the percent rel ease of Mg. On the other hand, the percent release of K was remarkably increased as the decrease of K/Mg ratio. Thus, the distinguished reciprocal effects between Mg and K were confirmed. (2) Mg-Ca relationship The percent release of Ca was not affected by the presence of Mg as complementary ion in these clays, but the presence of Ca was accompanied by a slight increase of percent release of Mg. Consequently, the reciprocal effects were insignificant.
社団法人日本土壌肥料学会の論文
1956-09-05