甘肃农业大学农耕特色库

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新疆加工番茄抗黄瓜花叶病毒转基因技术的研究: 作者： 张瑜 来源： 石河子大学 年份： 2010 文献类型： 学位论文 关键词： RNA干扰系统进化树黄瓜花叶病毒; 描述： bution, one of the pathogenicity impaired crops. It has three genomic RNAs. So it is one of RNA virus model strains to investigate pathogenicity mechanism in host.; 全文：黄瓜花叶病毒(Cucumber mosaic virus,CMV)是典型的+ssRNA病毒,是寄主最多、分布最广、对经济作物危害最为严重的植物病毒之一。该病毒为三分体病毒,基因组分布在3条RNA分子

干旱内陆河流域农业需水预测研究: 作者： 刘坤 来源： 石河子大学 年份： 2005 文献类型： 学位论文 关键词： 玛纳斯河流域水分生产函数农业需水预测动态规划; 描述： 本论文是国家科技攻关项目玛纳斯河流域水资源安全与可持续利用模式研究的一部分。玛纳斯河流域属于典型的干旱内陆河流域,其特定的地理位置和气候条件,形成了独特的荒漠绿洲农业,绿洲被沙漠戈壁包围,干旱缺水、决定了其农业生态极为脆弱。因此水已经成为干旱内陆河流域经济发展的瓶颈问题,而农业用水在干旱内陆河流域占; 全文：,结果表明:棉花在花铃后期的水分敏感指数最大,在苗期最小,符合生产实践中灌“关键水”及“蹲苗”的原理,为棉花科学合理配水提供了依据。推求了棉花的经济灌溉定额,为棉花灌溉制度的制定提供了科学的依据。在此基础上

新疆棉花“订单农业+期货”模型的构建与实证研究: 作者： 徐春华 来源： 石河子大学 年份： 2010 文献类型： 学位论文 关键词： 最小方差套期保值传统套期保值价格发现棉花期货订单农业; 描述： nd its ability to resist the risk of price fluctuation is fluctuating in relatively weak, so they often become the most direct victims for the rapidly cotton price, reducing the cotton farmers'enthusiasm to grow cotton .The cotton; 全文：履约风险。本文通过构建新疆棉花“订单农业+期货”模型,分析棉花数据,为涉棉企业找到最佳套期保值策略,转移价格风险,实现利益最大化。本文采取定性分析与定量分析相结合,实证分析与规范分析相结合,对构建

新疆生产建设兵团屯垦与戌边关系研究: 作者： 李丽 来源： 石河子大学 年份： 2010 文献类型： 学位论文 关键词： 戍边关系兵团屯垦; 描述： a crucial componen t of the Xinjiang Uygur Autonomous region that is under the command of the autonomous region's party committee. Its major task is to develop the local economy and to partially perform administrative and legal functions towards the corps reclamation area. It is a special political, eC01101111C, militaristic and social organization with a long history. It is also undertakes the important task of implementing strategies for production and for territorial border control. Such implementation influences both regional and national economic substantiality and social stability. This article attempts to analyze the relationship between production and border control while exploring the possible solutions for existing problems within the region, based on a historical perspective. There are three chapters in this article. The first chapter introduces the history of agricultural development and border trooping, based on the practical experiences of Han, Tang, and Qing Dynasty. The second chapter analyzes the dichotomy of agricultural production and border trooping. Border trooping needs daily rationing from agricultural production. Meanwhile, agricultural production is conditioned by border trooping. Border control is the goal ensured by agricultural productivity. However, the status of each element differs in different eras. They are the two inseparable elements. In the third chapter, the author discourses the means of adjusting border control and production according to the latest domestic and international situations. Since the socialist economic system is perfecting itself, Chinese mentality is experiencing significant changes. At the same time, the international situation changes tremendously which makes the strategic status of the region become more and more important. The production and border control mission is facing new challenges because of ethnic separatists, terrorists, and religious extremists. The article is going to provide some constructive suggestions, based on the mentioned factors. Under historically new conditions, Bingtuan, as an important part of Xinjiang, as well as a politics-military-united organization, is carrying out new tasks. To accomplish such tasks, one needs to comprehend the relationship between agricultural production and border control correctly, that is to continue both elements' growth in a firm manner. Now, the corps development is at the door step of a new historic entrance. Therefore, Bingtuan needs to increase the speed of growth of its economic society in order to perform a better contribution to the country.; 全文：论述了屯垦与戍边的辩证关系,认为二者是对立统一的关系,戍边需要屯垦来维持,屯垦则以戍边为前提,戍边是日的,屯垦是手段,但在不同时期屯垦与戍边的地位和作用有所不同,离开戍边讲屯垦或离开屯垦讲戍边都是错误

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