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題 名 | 操作壓力對定置式農藥噴灑系統效率影響之研究=Study of Pressure Variation Effect on Sprinkler Pesticide Application Systems Performance |
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作 者 | 陳增壽; 林詩淦; 蘇明道; | 書刊名 | 農業工程學報 |
卷 期 | 43:1 1997.03[民86.03] |
頁 次 | 頁26-35 |
分類號 | 434.251 |
關鍵詞 | 農藥; 農藥噴灑; 噴灑灌溉; 效率; Pesticide; Pesticide application; Sprinkler irrigation; Efficiency; |
語 文 | 中文(Chinese) |
中文摘要 | 近年來由於勞力缺乏及農業技術提昇,農藥噴灑已逐漸由自動化噴藥系統代替以 往之人工方式,但噴藥系統之設計與操作並無一定之規範及準則,一般農民為求達到防治效 果,多半採用過當的操作,造成藥液的浪費及環境污染,為求改善此現象,有必要發展一套 對噴藥系統試驗及評估之模式。以往之研究中雖曾提出以噴灑效率特性曲線來表示系統之特 性,但僅提出時間對系統效率之影響,對於其他之相關因子,如操作壓力、噴頭配置、以及 如何進行田間實際植株之試驗均未完成,本研究乃承繼以往之研究,以定置式高壓噴藥系統 為對象,研討操作壓力對系統效率及性能之影響。本研究發現高壓噴頭之試驗及操作應以噴 頭旋轉圈數代替以往以秒數為時間控制之依據。另外發現在霧化最低壓力及最高壓力(產生 操作不正常狀況)範圍內,操作壓力之變化對系統特性之影響並不大,系統之操作應以控制 時間變化及空間配置為主。 |
英文摘要 | Manual pesticide applications are recently replaced by automatic pesticide application systems due to lack of labor in Taiwan. Sprinkler irrigation systems are modified, special sprinklers and higher pressure are used for automatic pesticide application. Because there are no design criteria for this kind of applications, most of the systems used on farm are found to be over-designed or over operated in order to guarantee the pest control effectiveness. Soil and groundwater may be polluted by the pesticide residual. The objective of this study is to build an evaluation algorithm for high pressure sprinkler pesticide application systems. Experiments for the sprinklers were done indoor under no wind condition to capture the spray patterns. Different operating pressures and operation duration were used. Water sensitive paper is used simulating the plant leaves for pesticide adherent registration. These data of single sprinkler test are then used for simulation of the sprinkler pesticide application systems for performance evaluation. Because the slow rotation of pesticide application sprinklers, number of rotations are suggested to be used for operation duration control for more uniform field applications. It was also found that the performance will not be altered much by the increase of pressure when a threshold pressure are surpassed. The system performance are more affected by the operating duration and the arrangement of the sprinklers. |
本系統中英文摘要資訊取自各篇刊載內容。