香茅草栽植距離試驗
Other Title
Spacing Experiments on Citronella Grass
Journal
農業研究
Journal Volume
16
Journal Issue
1
Start Page
42
End Page
49
Date Issued
1967-03-04
Date
1967-03-04
Author(s)
楊永裕
陸之琳
Y.Y. Yang
C.L. Luh
Abstract
本試驗在苗栗四地區同時進行，連續三年，目的在研究香茅草的適當行株距香茅草產草量普遍隨栽植距離之縮小而增加，在五種行株距中，以100cm × 30cm D處理產草量最高，依次為70cm × 70cm（A處理），100cm × 50cm（C處理），120cm × 50cm（E處理），以100cm × 100cm（B處理）最劣，然臨界栽植距離尚無法決定。
不同行株距對香茅草含油率之影響，各區結果頗不一致，惟第三年處理間差異較大，且大致以A處理最高，其他兩年處理間差異較小，結果收油量除第三年以A處理最高外，餘均以D處理最高，其他依次為A，C，E及B。
油分之諸理化性質中，比重、旋光度、折光率及酒精溶解度，皆合於檢驗標準，油之重要成分香茅醛量及總醇量所受行株距之影響，隨各區、各年而互異，在多數情形有B處理較高，D，E處理較低之勢，似乎密植對香茅醛量有不利影響。
To find the suitable spacing of the citronella grass, an experiment was con-ducted at four locations in Mioli from 1963 through 1965 by using five spacing treatments.
Results indicate that spacing was significantly influence the grass yield in all four locations. The grass yield of five treatments was in the order as D treatment (100cm × 30cm), A (70cm × 70cm), C (100cm × 50cm), E (120cm × 50cm) and B (100cm × 100cm), though yield differences among C,E, and B were not statistically significant.
The percent oil content of citronella grass as affected by different spacing varied with loactions, and the difference among treatments were small. Only in the the third year, a somewhat large differencs were appeared with a highest oil percent on treatment A. For this reason, the oil yield of treatment A was higher than that of D, while in the first and second year, the oil yield of five treatments were in the same manner as in the grass yield.
The citronella content of the oil of different spacings were also varied with locations and harvesting time. In some cases, the narrow spacings as treatment D and E seems have had disadvantage effect on citronella content, and the content in treatment B was high in general.
Publisher
農業試驗所
Type
journal article
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