地球溫度持續上升對於位在熱帶與亞熱帶區域的台灣影響更大於溫帶氣候國家，而食物生產方面也連帶受影響，由於露天栽培因環境氣候影響且土壤養分難加以控制，進而衍生設施栽培利用溫網室進行無土栽培，可減少病蟲迫害情況且可良好控制栽培養液營養需求，由於高溫環境連帶產生多項影響因子，造成水耕蔬菜工廠植物成長不良，導致食物量產減少，為在炎熱氣候影響下使蔬菜成長茁壯且增加產量，故探討其不良因子影響植物多寡，並進行歸納整理及改善辦法。
本實驗以一、確立水耕栽培半結球萵苣物理性影響因素 : 探討通風與不通風環境之物理性因子對於半結球萵苣影響情形及連帶影響因素。二、以不同養液濃度對半結球萵苣在通風與不通風系統中進行栽培 : 調配不同濃度1000、1500、2000、2500、3000 (μs/cm) 之養液進行栽培，探討在不同環境中植物對於吸收養液情況及耐受程度。三、溫度與養液濃度之最佳配比 : 以恆溫之溫度數值搭配養液濃度規劃配比進行實驗，後續歸納最佳化條件。
實驗分析為環境溫度，環境濕度、培養液中養分含量、葉面溫度及蔬菜總重進行分析，實驗結果為當濕度相同情況下，環境溫度上升對相對葉面溫度上升，使其蒸散作用不佳，進行培養液中營養含量測定，低濃度組35度槽架比45度槽架多吸收22% 養液量，45度槽架與55度槽架之間吸收量相當；中濃度組吸收最多為45度槽架，其次為35度槽架兩者間養液吸收量相差13%，35度槽架又與55度槽架相差22%；觀看高濃度組可發覺35度所栽培吸收值最佳，與其次的45度槽架吸收量相差16%，以45度槽架與55度槽架做比較兩者相差36%，以栽培情況來斷定在高、中及低濃度的條件下以35度槽架所栽種半結球萵苣有較顯著養液吸收量。

The continuous rise of the earth's temperature has a greater impact on Taiwan, which is located in the tropics and subtropics, than in countries with temperate climates, and food production is also affected. Due to the influence of the environment and the climate and the difficulty of controlling soil nutrients in open-air cultivation, it is derived from the use of temperature network for facility cultivation. Soilless cultivation in the room can reduce the persecution of pests and diseases and can well control the nutritional requirements of the culture medium. Due to the high temperature environment, there are many influencing factors, resulting in poor plant growth in hydroponic vegetable factories, resulting in reduced food production. Under the influence, the vegetables can grow vigorously and increase the yield. Therefore, the adverse factors affecting the number of plants are discussed, and the methods for generalization and improvement are summarized.
The first part of this experiment is to establish the physical influencing factors of hemi-head lettuce in hydroponic cultivation: to explore the influence of the physical factors of the ventilated and non-ventilated environment on the hemi-head lettuce and the associated influencing factors. 2. Cultivation of hemi-head lettuce in ventilated and non-ventilated systems with different concentrations of nutrient solution: 1000, 1500, 2000, 2500, 3000 (μs/cm) of nutrient solution with different concentrations were prepared for cultivation, and the plants in different environments were discussed. For the absorption of nutrients and the degree of tolerance. 3. The optimal ratio of temperature and nutrient solution concentration: Experiment with the temperature value at constant temperature and the planned ratio of nutrient solution concentration, and then summarize the optimal conditions.
The experimental analysis is to analyze the ambient temperature, ambient humidity, nutrient content in the culture solution, leaf surface temperature and total vegetable weight. The experimental result is that when the humidity is the same, the increase of the ambient temperature will increase the relative leaf surface temperature, making the evapotranspiration effect poor. , to measure the nutrient content in the culture solution, the low concentration group absorbed 22% more nutrient solution than the 45 degree tank, and the absorption between the 45 degree and 55 degree tanks was equivalent; the medium concentration group absorbed the most The 45-degree trough, followed by the 35-degree trough have a difference of 13% in the absorption of nutrient solution, and the 35-degree trough and the 55-degree trough have a difference of 22%; watching the high-concentration group, it can be found that the absorption value of the 35-degree cultivation is the best , and the next 45-degree trough frame has a difference of 16% in absorption. Comparing the 45-degree trough frame with the 55-degree trough frame, the difference between the two is 36%. Based on the cultivation situation, it is determined that under the conditions of high, medium and low concentration, the 35-degree The hemi-head lettuce planted in the trough frame had a more significant absorption of nutrient solution.

摘要
ABSTRACT
目錄
圖目錄
表目錄
第一章 前言
1.1研究背景
1.2研究目的
第二章 文獻回顧
2.1水耕栽培背景及引進
2.1.1水耕栽培背景
2.1.2台灣水耕栽培引進
2.2水耕栽培系統之介紹
2.2.1無土栽培系統分類
2.2.2水耕栽培與土耕之差異及其優缺點
2.3水耕栽培物理性因子
2.3.1植物光合作用
2.3.2環境溫溼度對植物生長發育
2.3.3溫溼度對光合作用之影響
2.4水耕栽培化學性因子
2.4.1營養元素
2.4.2培養液酸鹼值
2.5水耕栽培生物性因子
2.5.1根圈微生物
第三章、研究方法
3.1.實驗架構
3.2水耕栽培系統建立
3.2.1槽架建置與通風設置
3.2.2養液配置
3.2.3溫度設置
3.2.4作物選用
3.2.5種植育苗及操作步驟
3.2.6藥品與試劑
3.2.7監測儀器
3.3實驗設計
3.3.1確立水耕栽培物理性影響因素
3.3.2養液濃度高低對於植物成長之影響
3.3.3溫度與養液濃度之最佳配比
3.3.4半結球萵苣對養液濃度承受極限
3.4實驗方法
3.4.1水質分析
3.4.2菌相分析
3.4.3成長動力學
第四章、結果與討論
4.1通風與不通風系統對植物影響因素
4.1.1栽種期環境溫溼度變化之影響
4.1.2栽種期間葉面溫度趨勢
4.1.3栽種期間養液溫度趨勢
4.1.4栽培期間培養液導電度與成長重量趨勢
4.1.5栽種成果之鮮重型態與結果
4.2 不同養液對溫溼度培養條件
4.2.1栽培期間環境溫濕度變化
4.2.2通風與不通風系統溫溼度相依性
4.2.3養液吸收情形及成長重量比較
4.3設定不同溫度對於半結球萵苣栽培探討
4.3.1栽培期間環境溫濕度
4.3.2不同槽體之環境溫度對於葉面溫度之變化
4.3.3不同溫度設定槽架對栽培成果比較
4.4植物對高濃度養液承受極限
4.4.1栽培期間培養液濃度
4.4.2營養液補充及植物成長重量比較
第五章、結論與建議
5.1結論
5.2建議
附錄
第六章、參考資料

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