以下为句子列表：
英文: Three trials were carried out by Hualien, Taoyuan and Tainan District Agricultural Research and Extension Stations to evaluate the new sulfonylurea herbicide flazasulfuron for the control of weeds in non-crop land by post-emergence application.
中文: 摘要本研究于东部花莲及西部桃园、台南地区之不同气候环境下，分别进行25%伏速隆水分散性粒剂之田间筛选试验，以探讨防除非耕地杂草之有效施用方法，提供农民使用之依据。
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英文: Using ethyl cyanoacetate, triethyl orthoformate and methylhydrazine as main raw materials, the herbicide pyrazosulfuron was prepared through the reactions of substitution, amination, cylclization, diazotization and chlorosulfonation.
中文: 摘要以氰乙酸乙酯、原甲酸三乙酯和甲肼等为主要原料，通过取代、胺化、环化、重氮化和氯磺化等反应制得了除草剂吡嘧磺隆原料药。
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