目的、研究背景、方法、结果和结论。④Ｓｑｕｉｒｅｓ式结构式摘要，与ＨａｙｎｅＳ—Ｈｌｌｔｈ式基本相同，同样是分段排列，只是在段首不加内容标题。另外也有结构层次不分段的，但在每一部分开始前都有明显的标题【’］。（２）综述文章结构式摘要的内容：综述文章多采用Ｍｕｌｒｏｗ式结构式摘要，分研究目的、资料来源、资料选择、资料提取、资料合成结果、结论等部分１１］２农业科技期刊应用结构式摘要的必要性２．１农业科技期刊现状（ｌ）农业科技期刊一次文献情况：我国现有农业期刊７００种左右，约占全部期刊总数的８．９％，办刊种类齐全，在农业科研和生产之间起着桥梁和纽带作用。但现阶段由于飞速发展的市场经济的冲击，使这一作用的正常发挥受到影响【‘，’］，其它的方面，如编辑素质ｌ‘ｌ、传统观念等也是制约的重要因素，和本文相关的就有不断提高编辑人员素质、更新观念、引进新的合理的改革等，包括办刊方针、编排格式、经营观念等。（２）文摘类刊物和数据库情况：和农业相关的文摘类刊物，如中国农业科学院所属的国外知名专业类文摘，由于经济效益、利用价值等原因，１９９３年一次性停办了６个专业性国外文摘，剩下的部分国外作者单位 Purpose, research background, methods, results and conclusions. ④Squires type structural summary, and HayneS-Hllth basically the same, is also arranged in segments, but the first paragraph without the title of the content. There are also structural hierarchies that are not segmented but have obvious headings before the beginning of each section [’]. (2) summary of the structure of the article Summary of the article: summarize the article to use Mulrow structural summary, sub-study purposes, sources of information, data selection, data extraction, data synthesis results, conclusions and other sections 11] 2 Agricultural Science and Technology Journals Abstract 2.1 Status of Agricultural Sci-tech Periodicals (1) Agricultural Sci-tech Periodicals One-time literatures: There are about 700 kinds of agricultural periodicals in our country, accounting for about 8.9% of the total number of periodicals. There are a wide range of editorial types, between agricultural research and production Play a bridge and link role. However, due to the impact of the rapidly developing market economy, the normal development of this role has been affected at this stage. Other aspects, such as the quality of editors, traditional concepts and so on, are also important constraints in this article. There are constantly improve the quality of editors, update their concepts, the introduction of new and reasonable reforms, including the guidelines, layout format, business philosophy. (2) Digests Publications and Databases: Digest publications related to agriculture, such as the well-known foreign abstracts belonging to the Chinese Academy of Agricultural Sciences, were closed in 1993 due to economic benefits and utilization value. Six professional foreign countries Abstracts, the remaining part of the author units abroad