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1.
浅析农业技术推广组织标准体系构建   总被引:1,自引:0,他引:1  
该文在分析我国农业技术推广组织存在问题;在农技推广中的作用,标准化工作的意义以及标准化现状的基础上,提出构建农业技术推广组织标准体系,为农业技术推广组织标准化工作提供了支持。  相似文献   
2.
政府部门应该以国际公共部门会计准则为依据对PPP项目中的政府保证进行会计确认,反映PPP项目中政府保证的成本及其隐含的风险,增强政府部门的成本意识,避免过度提供保证。根据业绩担保类政府保证的看跌期权性质,建议应用期权定价的技术进行会计计量,将其确认为报表中的金融负债。并可通过建立政府保证基金的方式解决政府保证单独估价造成的成本高估问题。  相似文献   
3.
树状月季的发展状况及展望   总被引:2,自引:0,他引:2  
介绍了树状月季在国内外的发展现状,表述了树月季在培育过程中的关键技术环节,在概括树月季在国内栽培生产中存在的问题后,给出了相应的解决办法,最后指出了树月季未来发展热点和趋势.  相似文献   
4.
Natural durability of wood is determined by the European standard EN 252 for specimens in ground contact and EN 113 for basidiomycetes in the laboratory, but no test exists for above ground conditions. For above ground conditions, the European prestandard ENV 12037 and EN 330 are used to determine the durability of treated wood. The most important factors for fungal establishment on the surface and within wood are the moisture content, the surrounding temperature, and the relative humidity. Strength tests are the most sensitive for decay detection, but neither strength tests nor identification of fungi responsible for the decay are included in the standards of above ground durability in field tests. To detect decay, visual examination, pick or splinter tests, and mass loss determination are used. Identifying fungi with traditional methods, e.g., growth on solid medium, is time consuming and complicated. Molecular methods like polymerase chain reaction and sequencing do not require mycological skill for identification to species level, and furthermore the methods do not depend on the subjective judgement like most traditional methods, but are based on the objective information of the target organism (e.g., nucleotide sequences). The next generation of standard field tests will probably consider the drawbacks of standard tests today and be rapid and include both quality tests like molecular identification and nondestructive quantitative tests, e.g., acoustic tests. Laboratory tests can be improved by using fungi identified from field trials and by combining different fungi in the same test and thus simulate degradation in practice.  相似文献   
5.
对我国现行食用菌标准情况进行了整理分析,并针对目前我国食用菌标准化及标准工作中存在的问题提出了一些建议。  相似文献   
6.
何东坡  王光  袁晓明  宋国宏 《森林工程》2001,17(4):46-47,50
本文对公路工程中试验检测的依据、基本理论、部分测试操作技能进行了分析阐述,并对如何在工程实践中切实发挥质检机构的作用进行了探讨。  相似文献   
7.
有机农业发展现状及其研究趋向   总被引:3,自引:0,他引:3  
简析了世界主要国家有机农业产生的背景和发展现状,并提出我国有机农业的主要研究方向,即有机农业与有机农产品的标准制定和认证;有机农业生产关键技术体系、管理体系、农产品服务体系的构建和集成;有机农业生产生态经济评价体系的构建和实施。  相似文献   
8.
Contemporary regulation of food safety incorporates principles of quality management and systemic performance objectives that used to characterize private standards. Conversely, private standards are covering ground that used to be the realm of regulation. The nature of the two is becoming increasingly indistinguishable. The case study of the Ugandan fish export industry highlights how management methods borrowed from private standards can be applied to public regulation to achieve seemingly conflicting objectives. In the late 1990s, the EU imposed repeated bans on fish imported from Uganda on the basis of food safety concerns. However, the EU did not provide scientific proof that the fish were actually “unsafe.” Rather, the poor performance of Uganda’s regulatory and monitoring system was used as justification. Only by fixing “the system” (of regulations and inspections) and performing the ritual of laboratory testing for all consignments for export to the EU did the Ugandan industry regain its status as a “safe” source of fish. Yet, gaps and inconsistencies abound in the current Ugandan fish safety management system. Some operations are by necessity carried out as “rituals of verification.” Given the importance of microbiological tests and laboratories in the compliance system, “alchemic rituals” provide an appropriate metaphor. These rituals are part and parcel of a model that reassures the EU fish-eating public that all is under control in Uganda from boat to point of export. As a consequence, actual non-compliance from boat to landing site allows the fishery to survive as an artisanal operation. Stefano Ponte is Senior Researcher at the Danish Institute for International Studies, Copenhagen. His research focuses on the role of standards, regulation and quality conventions in the governance of agro-food value chains, with particular focus on Africa. He is co-author of Trading Down: Africa, Value Chains and the Global Economy and The Coffee Paradox: Global Markets, Commodity Trade and the Elusive Promise of Development.  相似文献   
9.
棉花机械化育苗移栽农艺指标的确定   总被引:1,自引:0,他引:1  
采用三因素三水平随机区组条区排列的试验方法,对影响棉花机械化育苗移栽的营养钵规格、移栽苗叶龄等农艺指标进行了研究。结果表明,适宜于棉花机械化育苗移栽的钵体规格为70mm×h100mm;移栽苗叶龄为6叶期。  相似文献   
10.
菲律宾是世界主要进口大米国家之一,实现大米的自给是它的一项基本国策。菲律宾非常重视稻米质量标准的研究,对稻米的分级指标和分级方法进行了长期的有效的探索。菲律宾稻米分级系统参照了联合国粮农组织(FAO)推荐的大米分级模式,推行视觉识别标准化包装是菲律宾稻米质量标准的一个重要特征。菲律宾注重通过标准化计划的实施使得菲律宾稻米生产者、加工者、贸易商和消费者对谷物标准的实施增加感性认识,提高执行标准的自觉性的做法值得中国借鉴。  相似文献   
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