野生鸭茅耐热性能评价

采用田间试验对16份鸭茅在自然条件下进行4个水平的热胁迫,观测其植株叶片相对电导率、叶绿素总含量、游离脯氨酸含量及体内超氧化物歧化酶(SOD)活性。研究结果表明:随着田间温度的升高,鸭茅叶片的相对电导率和游离脯氨酸含量均呈递增趋势;叶绿素总含量则呈递减趋势;超氧化物歧化酶活性则先呈递增后又递减的趋势。通过比较4项生理指标的变化规律以及指标间相关性的研究分析,可把16份鸭茅材料的耐热性分为3个级别,其中鸭茅材料02106、02104、02-1110、1032、02-109的耐热性非常好。     

西番莲属植物新品种(DUS)测试指南的研制初报

根据植物新品种特异性、一致性和稳定性(简称DUS)测试的原理和技术规则,参考UPOV西番莲的测试指南,结合国内外资源,研制适用于我国西番莲属植物新品种测试的指南,对其适用对象、性状的选择与确定、性状分级、标准品种的选用和DUS判定标准进行详细研讨,为西番莲属植物新品种的授权提供测试技术的支撑,为热区植物测试技术规程的建设与完善提供参考。     

常熟市慢行系统无障碍设计探讨

论述了无障碍设计内容、目的和意义,对其核心概念进行了明确的界定。探讨了无障碍设计要求、无障碍设计原则,提出了无障碍设计整体规划,设计出了符合残障者要求的慢行系统。     

Phytoremediation: An interim landscape architecture strategy to improve accessibility of contaminated vacant lands in Canadian municipalities

Many Canadian cities are faced with the challenge of contaminated lands that remain vacant due to high remediation costs. Redevelopment of these lots to greenspace enhances the character of cities and improves human and environmental health. Interim design strategies, while phytoremediation – the process of treating contaminated soil and water with plants – is taking place, were explored to improve the amenity value of contaminated vacant lands. Based on an integrative literature review synthesis and a phytoremediation example, design guidelines were formulated and then applied to three Canadian municipal sites. An expert panel, including phytoremediation specialists and municipal staff involved with open space planning and development, provided an evaluation of the guidelines. The comments received through the evaluation demonstrated that the design guidelines are an appropriate foundation for the application of phytoremediation as an interim strategy for transforming contaminated lands into usable green space within Canadian municipalities.     

WHO国际生物制品标准物质制备指导原则介绍与我国兽用生物制品标准物质制备程序思考

介绍了WHO 2004年公布的最新的国际及其他生物制品标准物质制备、鉴定和建立的指导原则,旨在引进科学的、具有指导性意义的国际生物制品标准物质建立程序和技术标准,为我国兽用生物制品标准物质制备程序的建立提供依据。     

报春苣苔属新品种特异性、一致性和稳定性测试指南研制

苦苣苔科报春苣苔属具有极其丰富的生物多样性,大多数都具有极高的观赏价值,而其多样化的花朵、叶片和植株形态使其具有开发为极具我国特色的新花卉的潜力。近年来,国产苦苣苔科植物,尤其是报春苣苔属越来越受到人们的重视,在世界苦苣苔科植物新品种登录权威——世界苦苣苔协会（The Gesneriad Society, GS）进行登录的报春苣苔属新品种日渐增多,而该属也有望得以被我国农业农村部新品种保护办公室列入植物品种保护名录。但是目前报春苣苔属植物在国内外均无相关的DUS测试指南与标准,这方面的工作亟待开展。因此,本研究根据植物新品种特异性、一致性和稳定性（简称DUS）测试的原理和技术规则,参考UPOV关于同科不同属的、源自不同国家的测试指南,结合资源现状,研制适用于我国报春苣苔属植物新品种测试的指南,对其适用对象、性状的选择与确定、性状分级、标准品种的选用和DUS判定标准进行详细研讨,为报春苣苔属植物新品种的授权提供测试技术的支撑,为极具我国特色的该类植物测试技术规程的建设与完善提供参考,为将这一类群的新品种培育、园艺化、产业化和新品种保护提供行业标准。     

Constructing a nitrogen fertilizer recommendation system using a dynamic model: what do farmers want?

Abstract. An effective fertilizer recommendation system requires information on seasonal, soil-related and cultural variations in soil mineral nitrogen (N) and nutrient requirements of the crop. This can be provided by dynamic N turnover models, such as listed by Plentinger & Penning De Vries (1996). In this paper, we describe a survey of farmer opinion designed to ascertain what farmers want from such a decision support system. Over 100 farmers were surveyed. Surveyed farmers requested that default values be available for all model inputs. Inputs should be entered both by windows-based menu (for clarity) and tabular format (for speed), have user-selected units, and be fully supported by context-sensitive help. The system should have a hierarchical structure allowing access to fixed parameters, and be compatible with commonly used farm recording packages. Recommendations should be provided both for the field (single and optional application rates), and in tabular format across the whole farm. Simulations should be easily rerun using more recent crop and weather data. Turnover processes underlying recommendations should be illustrated by flow diagrams of flux between pools, pie charts of fertilizer fate, bar charts of movement down the soil profile and graphical plots of changes in N status against time.     

非充分灌溉中作物——水模型的应用准则研究

根据半干旱地区东北通辽,并参照华北呼和浩特两地资料,对全生育期模型和阶段作物—水模型进行了系统的拟合检验。线性模型适应于全生育期相对蒸散和相对产量的关系,单阶段模型为对数和指数关系。FAO所给Ky值与试验拟合结果存在差别,所以Ky应用要以试验结果为准,FAO值可做参考。在半干旱地区,詹森,布兰克,若尔模型较好,本文提出了模型应用的5点指南。     

酸性土壤施用铬渣制钙镁磷肥的六价铬控制指标

在施用定量铬渣钙镁磷肥的基础上,添加序列浓度的六价铬,盆(或微区)栽小麦、水稻、小白菜,根据这些作物的生长反应和收获物中的六价铬含量,并参照有关的卫生标准,建议施用铬渣制钙镁磷肥中六价铬的控制指标是,对旱作物,六价铬最大添加量为20ppm;对水稻,六价铬最大添加量为100ppm。