香茅草栽培法改良試驗-I.覆蓋與施肥對香茅草產草量及收油量的影響

Abstract

本研究目的在探討防止香茅園的水土流失，以提高香茅草的單位面積產草量及產油量，試驗係自 51 年起至 54 年，在苗栗縣四地區同時舉行，處理分四種（A）覆草施肥，(B）覆草不施肥，(C) 不覆草施肥（D）不覆草不施肥。生草每年收刈三次。 各處理的生草產量，隨年度，季節及地區而略有不同，大致施肥效果甚為明顯，在 4 年試驗中，不論覆草與否，均以施肥區最高，覆草效果則各年略有不同，第 1 年兩施肥處理比較，不覆草較覆草略優，據推測可能係覆草間接影響土壤氮的有效性所致。 The objective of this study was to help raise the yield of citronella grass and to prevent the water erosion occurred in the grass field. The experiment was laid down at 5 places in Miao-li prefecture in 1962 and continued until 1965. Four treatments as (A) mulched and fertilized (B) mulched and unfertilized (C) unmuiched and fertilized (D) unmulched and unfertilized, were arranged with 3 times of harvesting per year.