Abstract
The paper reports the latest finding in a series of studies on the frequency and distributions of the main mineral components and nitrogen conteind in the Welsh onion which is called Yakkonegi cultivated in Kochi prefecture. 1.The chemical analycis of components in Yakkonegi show normal distributions for calcium, phosphorus, potassium, magnesium, nitrogen and water, while the distribution for iron, sodium were logarithm-normal. 2.The main mineral components was different by harvesting season, growing process and piece. 3.As a result of examining correlations between every elements, a positive correlations between phosphrus and potassium in winter sample was very high. A positive correlations between nitrogen and potassium in autumn sample. A positive correlations beteen potassium and phosphrus, beteen nitrogen and potassium in middle of growing. There were two correlations; one was between magnesium and phosphrus, the ther between sodium and calcium. Every sample between sodium and calcium had negative correlations. High correlations was found at the part of leaves which had high life activety.
