籃耕栽培對青蔥生育之影響

The Effects of Container Culture on Growth and Development of Welsh Onion

尤進欽(Jinn-Chin Yiu) ； 郭純德(Chun-Teh Kuo) ； 方怡丹(Yi-Tan Fang) ； 劉芯瑄(Shin-Shiuan Liou)

《植物種苗》 9卷1期 (2007/03) Pp. 19-33

https://doi.org/10.30077/SN.200703.0003

摘要

為了改進青蔥的栽培體系，以30公分深的塑膠籃進行試驗。於2006年以三種種植方式評估對青蔥生育之影響，包括：田間栽培、網室內籃耕及戶外籃耕。3月23日採收的青蔥，其生長期為冬季，光照不充足，因此，網室內籃耕的青蔥生長不佳，但戶外籃耕者在分蘗數及單欉重的性狀上較田間栽培的青蔥佳，且可提早20天左右採收。不同季節栽培青蔥，以6月22日採收的青蔥品質最佳，且3種栽培方式的青蔥生育情形皆相差不多。一般而言，夏季栽培的青蔥較其它季節差，尤其是8月27日採收者。但比較3種種植方式之青蔥，其蔥白長、株高及蔥白直徑均以籃耕栽培的青蔥最佳。籃耕可明顯改善青蔥的生長情形，主要原因可能是籃耕介質之根區溫度較田間土壤低。至12月1日採收的青蔥，生長情形才逐漸恢復，但產量仍不及6月22日採收者。由以上的結果顯示，籃耕栽培對青蔥生長發育較田間栽培者佳，但應避免在冬季光照不足情形下以網室進行籃耕栽培，不過這種方式可應付夏季高溫多雨的氣候，確保植株的生長。

關鍵字

青蔥 ； 籃耕栽培 ； 根溫

並列摘要

In order to improve the welsh onion culture system, we used the 30 cm depth of plastic containers in this experiment. Welsh onion was evaluated in 2006 under the three planting method: in the ground, container in netted house and container in outdoor. Due to insufficient sun light, the growth of welsh onion from container culture in netted house was not well on 23 March. The plants cultured in containers located in outdoor was better than those in the ground, and was earlier about 20 day to harvest. The quality and quantity of welsh onion was the best on 22 June among different seasons, and planting method did not affect the growth of welsh onion. In general, the quality of welsh onion was poor in the summer when compared to other seasons, especially on harvested date of 27 August. Compared with welsh onion under the three planting methods, the length of blanched sheath, plant height and diameters of blanched sheath were the best when using container culture. The major reason maybe root-zone temperature was significantly lower in the container medium than the ground soil. The growth of welsh onion were recovered till 1 December, but its growth were still worse than that harvested at 22 June. Based on above results, welsh onion was cultured in containers were better than those in ground, but avoid locating in netted house during winter. The container-culture system can challenge high temperature and raininess in summer to preserve plant growth.

並列關鍵字

welsh onion ； plastic container culture ； root-zone temperature