設施莧菜及青梗白菜肥培管理研究

Study on Fertilizer Requirement of Ganges Amaranth and Pak Choi in Plastic House Cultivation

湯雪溶(Hsueh-Jung Tang) ； 賴昭宏(Chao-Hung Lai)

《桃園區農業改良場研究彙報》 74期 (2013/12) Pp. 15-30

摘要

本研究旨在探討設施栽種莧菜及青梗白菜氮、磷酐及氧化鉀三要素需求量與氮肥分配率。田間試驗分二年進行，第一年探討莧菜及青梗白菜氮肥需要量及分配率，第二年則探討磷肥及鉀肥之需要量。試驗結果顯示，莧菜氮、磷酐及氧化鉀推薦用量分別為200 kg ha^(-1)、100 kg ha^(-1)及50 kg ha^(-1)，青梗白菜氮、磷酐及氧化鉀推薦用量分別為200 kg ha^(-1)、80 kg ha^(-1)及100 kg ha^(-1)，分配率則以氮、磷酐及氧化鉀全量當基肥施用最佳。

關鍵字

設施 ； 莧菜 ； 青梗白菜 ； 需肥量

並列摘要

Leafy vegetables are cultivated in of in facilities mostly of Taiwan northern area. The farmers often use a large number of fertilizer application more than crop requirements. The results may easily lead to accumulation of inorganic salts in soil, nutrient imbalances and so on. This study were established the amount of nitrogen, phosphorus and potassium fertilizer recommendation of Ganges Amaranth and Pak Choi, with the first year to establish Ganges Amaranth and Pak Choi nitrogen application amount and ratio, the second year was to establish phosphate and potash requirements. According to the experiment result, the amount of nitrogen, phosphorus and potassium fertilizer recommendation of Ganges Amaranth was 200, 100 and 50 kg ha^(-1) and Pak Choi was 200, 80 and 100 kg ha^(-1) in plastic house cultivation.

並列關鍵字

facility ； the amount of fertilizer requirement ； pak choi ； ganges amaranth