數種高經濟花卉作物肥料之開發應用研究（一）切花用粒狀複合肥料

Study on the Development and Application of New Type Fertilizers for Economic Flower Crops(I)-- Granular Compound Fertilizers

本研究之目的在開發適於本省高經濟切花作物施用之新型複合肥料。切花類選擇菊花與唐菖蒲，苗圃類選定麗莎蕨進行肥效試驗。肥料配方除參考國外者外，並考慮添加鎂素與腐植酸；原料方面針對鉀源－－硫酸鉀與氯化鉀進行探討。肥料型態為粒狀，肥效較長，可直接施用。試驗結果顯示：切花類之菊花、唐菖蒲採用12-5-17-2（MgO）配方施用，可提昇切花產量與品質，並降低生產成本；苗圃類施用5-5-5-2（MgO）-10（腐植酸）及16-8-12-3（MgO），能顯著提高麗莎蕨切葉數及切葉鮮重。

The major research scope was to study the effect of various forms of potassic fertilizers and the ratio of N, P₂O₅ and K₂0. During the experimental period, quantitative measurements of growth vigor and flowering were taken. At the end of experiments, the optimal levels and sources for those high-priced flower crops would be formulated for future production. A new formulation 12-5-17-2(MgO) of compound fertilizer was manufactured and showed positive effect on increasing yield and improving quality of both chrysanthemum and gladiolus. Two new products with formulations 5-5-5-2(MgO)- 10 (Humic acid) and 16-8-12-3(MgO) were both able to increase the yield of leather fern.