人蔘 連作障害의 原因에 관한 硏究 = Studies on the Causal Facters of Ginseng Soil Sickness

국문 초록 (Abstract)

人蔘의 連作障害原因을 究明하기 위하여 山蔘이 100年間 野生된 土壤과 人蔘을 6年間 栽培한 土壤을 土深別로 採取하여 理化學的 性質을 比較 檢討한 結果를 보면 다음과 같다.
1) 山蔘採取地土壤은 砂質埴壤土이고 人蔘採取地土壤에서 上層土는 砂質壤土이나 下層土는 埴壤土였다. pH는 다같이 微酸性으로 비슷하였고 土深이 깊을수록 다소 酸度가 높아지는 경향이 있다.
2) 有機物含量은 山蔘採取地土壤에 현저하게 많았으며 土深이 깊을수록 減少되었다.
3) 燐酸含量은 人蔘採取地土壤에 많았으며 土深이 깊을수록 다소 減少되었다.
4) 加里含量은 山蔘採取地土壤에 많았고 土深이 깊을수록 減少되었다. 그리고 石灰, 苦土含量은 一定한 경향을 볼 수 없었다.
5) 硅酸含量은 一定한 경향을 볼 수 없었다.
6) 微量元素 중에서 Mn 및 Zn 含量은 人蔘採取地土壤에 많았고 Fe含量은 山蔘採取地土壤에 많았다. 그리고 Cu 및 B 含量에서는 一定한 경향을 볼 수 없었다. 土深에 따라서 山蔘採取地土壤은 Mn, Fe含量에 變化가 없었다.

다국어 초록 (Multilingual Abstract)

This studies are concerned mainly with depth components of the soil on the cause of its sickness in the continuous cropping of cultivated ginseng and wild ginseng. The obtained results are summarized as follows.
1. The texture of soil in which wild ginseng grew was silt clay loam. The soil where ginseng cultivated was silt loam at the upper layer and clay loam at the lower layer. pH was a week acid in the soil samples for the cultivated ginseng, and wild ginseng was acidulated to the depth of soil.
2. The content of organic compounds was greater in the sample soil for wild ginseng. But the content of organic compounds in the soil for wild ginseng decreased in proportions to the soil depth.
3. The phosphate was contained in greater amount in the sample soil for cultivated ginseng than in that for wild ginseng. But content of phosphate in the soil for cultivated ginseng decreased proportionately to the soil depth.
4. The potassium increased in greater amount in the sample soil for wild ginseng than in that for cultivated ginseng. But the content of potassium in the soil for wild ginseng decreased. No fixed tendency of difference was found between soil for wild ginseng and that for cultivated ginseng in the components of calcium and magnesium.
5. The difference was insignificant in the amounts of silica between the soil for wild ginseng and that for caltivated ginseng.
6. The components of mangan and zinc increased in the soil for cultivated ginseng, but iron increased in that for wild ginseng. The difference in the amounts of cropper and boron were of no significance between the soil for wild ginseng and that for cultivated ginseng. But there was no change in the content of mangan and iron according to the depth of soil for wild ginseng.

목차 (Table of Contents)

• Ⅰ. 緖 論
• Ⅱ. 材料 및 方法
• Ⅲ. 結 果
• Ⅳ. 考 察
• Ⅴ. 摘 要