主要作物施肥適量試驗(八)香茅草施肥適量試驗

Abstract

為探討香茅草三要素肥料需要量，於民國46年開始在苗栗縣銅鑼鄉農家舉辦試驗，其設計包括三要素不同施用量之各種組合16處理，重覆四次。 由試驗結果知氮肥對香茅草收量之增產，效果最大，磷鉀影響較小。 由本試驗成績建議香茅草要素施用量栽植當年每公頃施用N,P2O5, K2O 各30：15:15公斤，第二年以後，每年每公頃約60:20:20公斤。 This experiment was conducted during 1957-59 at Jong-Lo Shiang. Miao-Li prefecture in order to get information about the N-P K requirements for citronella. It has 16 fertilizer treatments with four replications. The result shows that nitrogen was very significant in increasing the grass yield of citronella A recommendation concerning the optimum fertilizer ratio for citronella has been suggested as N 30 kg/ha P2O5 15kg/ha and K2O 15kg/ha on the first year of planting and 60:20:20 kg/ha of N:P2O5:K2O on the year after.