薬用植物栽培の植物化学的研究 (第4報)

チョウセンアサガオ類の栽培條件とアルカロイド生成の関係 その3

抄録

The effect of the form and the volume of nitrogen in the fertilizer against alkaloidal content in the leaves of Datura Tatura L., is described, together with the results of examination of three nutrient principles when sodium nitrate is used as the source of nitrogen, and the effect of phosphate. The yield of the alkaloid increases in the order of NaNO₃<NH₄NO₃<(NH₄)₂SO₄, the maximum yield being obtained with (NH₄)₂SO₄ when used in a ratio of N 5.0, P₂O₅ 3.0, K₂O 1.5. Interrelationship between the alkaloidal content and the amount of total nitrogen in the leaves was examined.