當歸肥料試驗

Abstract

為探究N.P.K之施肥量對於當歸根之產量及品質之影響。乃舉行本試驗。供試品種為大和當歸，分九個處理。茲將試驗結果商述如下： 1. 從表四中結果看，根產量則以N2P1K0處理區為最高，顯示由於加施N肥之顯影響，而K肥對於根產量似無影響。 2. 其他處理間根產量差異不顯著，而以N0P1K2處理區為最低，表示根產量受缺N肥的影響，而K肥的加施與否對根產量之影響不大。 3. 各處理間根產量受N及P肥施量之影響較大。

The present experiment is to study the effect of N.P.K. fertilizers on the yield and quality of Angelica. Angelica acutiloba Kitagawa f. acutilioba Hikino was used as the material which was planted on the field under nine treatments. 1. The highest root yield was obtained in the treatment of N2 P1 K0 This indicated that the yield increased was primarily due to the increased application of nitrogen fertilizer. Less influence of potassium to the root yield was noticed. 2. No statically signigicant differences in the root yield among other treatment were found. However, The lowest rot yield in the N0 P2 K2 treatment was noticed, indicating that the yield decrease was due to lack of nitrogen fertilizer. Effect of potassium on the root yield seems to be not prominent, the larger effect of phosphorus on the root yield was noticed however.