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題名 | 宜蘭地區溫泉水灌溉蕹菜肥培管理之研究=Study on Fertilization of Water Convolvulus (Ipomea aquatica Forsk.) Irrigated with Hot-Spring Water at Ilan Area |
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作者 | 彭德昌; Perng, Der-chang; |
期刊 | 花蓮區農業改良場研究彙報 |
出版日期 | 20011100 |
卷期 | 19 2001.11[民90.11] |
頁次 | 頁29-35 |
分類號 | 435.24 |
語文 | chi |
關鍵詞 | 蕹菜; 溫泉水灌溉; 施肥方法; Water convolvulus; Irrigated with hot-spring water; Fertilizing method; |
中文摘要 | 為探討施用粉狀單質化學肥料或粒狀複合肥料等不同肥料種類,以及追肥有無分施對宜蘭地區溫泉水灌溉蕹菜產量與品質之影響,自88年1月至12月在宜蘭縣礁溪鄉進行試驗。結果顯示每公頃在施用腐熟堆肥10 ton及化學肥料用量N:P2O5:K2O=450:225:337.5 kg之情況下,以施用粉狀單質化肥者比施用粒狀複肥者為佳,並以每次採收後隨即施用一次粉狀單質化肥N:P2O5:K2O=25:12.5:18.75 kg/ha、至生育中期再施用一次液體複肥N:P2O5:K2O=50:25:25 kg/ha者之產量25,048 kg/ha為最佳,比每次採收後只施用一次粉狀單質化肥N:P2O5:K2O=75:37.5:56.25 kg/ha者增產2.1%,連續採收6次之總產量達150,288 kg/ha,溫泉蕹菜之售價若以每公斤新台幣30元計算,在扣除肥料成本及施肥工資後,每公頃之粗收益可增加64,000元。6個不同施肥處理在蕹菜莖葉之硝酸態氮含量為1.22~1.59 ppm之間。 |
英文摘要 | The objective of this study is to investigate the effects of different fertilizers and application methods for water convolvulus irrigated with hot-spring water. The study was conducted from Jan. 1999 to Aug. 1999 at Jiau-shi, Ilan. The results indicated that effect of mixing powdery ammonium sulfate, calcium superphosphate and potassium chloride was better than granular compound fertilizer for water convolvulus. Fertilizers applied after every harvesting accompanied with one foliage dressing of instant fertilizer during mid-vegetative stage got the highest yield 25,048 kg/harvest/ha, that is 150 tons/ha for 6 successive harvesting in one crop season.The nitrate nitrogen contents of leaves and stems were among 1.22~1.59 ppm in different treatments. |
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