作物のマグネシウム栄養に関する研究(第3報) : 大豆の莢及び種実に於けるマグネシウムとカルシウムの含量

概要

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Pod and seed of soybeen plants of the previous reports were divided into the fractions, soluble in 70% alcohol, distilled water, 2% acetic acid, 10% hydrochloric acid, and insoluble one. The amounts of magnesium and calcium in each fraction were quantitatively determined. The results obtained may be summarized as follows : (1) Both the amounts of magnesium and calcium in seed were low and they responded little to the magnesium application. In the pod, on the contrary, their contents were higher than the seed. And the more magnesium application, the higher the magnesium amount and the lower the calcium amount, namely, the amount of magnesium in pod was in inverse ratio to the amount of calcium. (2) Of all the fraction soluble in acetic acid was the highest in both magnesium and calcium and they showed evidently the reciprocal relation, but the other fractions they did not. (3) From the above results, the authors recognized again the previous conclusion : magnesium and calcium solved in acetic acid, which may combine with pectic substance and play only the mechanical role, exist in reciprocal relation, as i they substituted each other.
社団法人日本土壌肥料学会の論文
1954-03-05