洋蔥穴盤育苗技術之建立
Other Title
Establishment of Plug Tray Seedling Production Techniques for Onion
Journal
台灣農業研究
Journal Volume
75
Journal Issue
3
Start Page
409
End Page
417
ISSN
2790-086X
Date Issued
2026-09-04
Author(s)
朱雅玲
黃祥益
Abstract
本研究旨在篩選適宜之洋蔥穴盤育苗介質，並建立穴盤苗水分管理技術，以提升苗株品質並符合自動移植機械之操作需求，促進洋蔥栽培之自動化。本試驗採用專供洋蔥自動移植機使用之 448 格穴盤，評估兩種商業蔬菜育苗介質之理化特性與育苗效能。結果顯示，B 介質之電導度 (electrical conductivity; EC) 與陽離子交換量 (cation exchange capacity; CEC) 均顯著高於 A 介質，而兩介質之酸鹼值 (potential of hydrogen; pH)、電導度、總體密度 (bulk density; BD) 及孔隙度 (porosity) 皆落於適合作為洋蔥育苗介質之範圍。在苗株生育表現方面，栽培於 B 介質之洋蔥苗於播種後第 2 週至第 10 週之株高、葉鞘徑及鮮重均優於 A 介質，且於第 10週之壯苗指數亦明顯較高，顯示 B 介質具備較佳之育苗應用性。水分管理試驗結果指出，每日分兩次灌溉共2 L 可提供較穩定之水分供應，並有助於提升穴盤苗之生育狀況。綜合而言，本研究所篩選之 B 介質與其配套之水分管理模式能有效提升洋蔥穴盤苗品質與生長勢，具商業育苗操作之應用潛力，並可作為推動洋蔥自動化移植之技術基礎。
This study aimed to identify suitable substrate media for onion plug seedling production and to establish an appropriate water management regime to enhance seedling quality for mechanical transplanting, thereby promoting the automation of onion cultivation. A 448-cell plug tray designed for automated onion transplanters was used to evaluate the physicochemical properties and seedling performance of two commercial vegetable substrates. The results showed that substrate B had significantly higher electrical conductivity (EC) and cation exchange capacity (CEC) than substrate A, while both substrates had potential of hydrogen (pH), EC, bulk density, and porosity values within acceptable ranges for onion plug seedling production. In terms of seedling growth, onion seedlings grown in substrate B had greater plant height, pseudostem diameter, and fresh weight from 2 to 10 wk after sowing, and also displayed a higher seedling vigor index at week 10, indicating its superior suitability for plug seedling production. The water management experiment further demonstrated that irrigating twice daily provided a more stable water supply, leading to improved seedling growth and overall performance. In conclusion, the selected substrate B and the corresponding water management practice effectively enhanced seedling quality and vigor, demonstrating strong applicability to commercial onion plug seedling production and supporting the advancement of automated transplanting systems.
Subjects
洋蔥
穴盤育苗
自動移植
水分管理
Onion
Plug-tray seedling
Mechanical transplanting
Water management
Publisher
農業部農業試驗所
Type
journal article
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