树莓的引种试验初报

2000年从俄罗斯、北京和吉林等地引进18个树莓栽培品种,在丽江进行引种试验研究,以筛选优良品种并探讨其栽培技术。结果表明:Fengmanhong、No-thorn black raspberry和Willamette品种长势良好,引种第2年开始挂果,第3年进入盛果期,丰产、适应性强、风味佳、有较好的市场前景。     

Compensating persons injured in human experimentation

Without disparaging the ethical importance of informed consent or of care and supervision in research design, it is possible to assert that ethics requires also that the investigator furnish financial protection to research subjects. Lacking mechanisms for providing this protection, investigators have seldom made such provision in the past, and have left research subjects to rely on the institution's sense of moral obligation or on poorly defined legal rights. Research institutions and research sponsors, especially the federal government and the drug industry that it regulates, could provide for insurance or indemnification through mechanisms yet to be developed. In pursuit of this goal, serious study should begin on the problems of implementing compensation arrangements for all injured research subjects. The Public Health Service and the FDA have not fully discharged their responsibility in the direction of creating conditions under which clinical research can proceed with adequate regard for the subjects' rights.     

教育博客在实验教学中的应用实践

本文对教育博客在本校ERP实验教学中的试点应用情况进行了总结,对教育博客在教学和学习中的应用进行了有益的探讨.     

静水压强实验仪的改进及实验

老式静水压强实验仪存在的问题有：压力调节过程繁琐、容易外溢；刻度板与密封箱距离远且零热能而不一致，造成视觉误差大且计算量增加；落地式容易被学生碰撞，造成不安全因素。针对老式静水压强仪中存在的具体问题，进行了如下几个方面的改进：由水桶调压改为气囊调压；将刻度板与调压筒紧挨在一起且零势能面相等；将落地式改为台式。结果表明：改进后的静水压强仪的精度较改进前的提高０．６１％，且具有测试方便、直观性强、安全美观等优点。     

黄瓜线虫病防治试验初报

本文用1.5%菌线威可湿性粉剂和20%红芋宝悬浮剂防治黄瓜根结线虫病,试验表明1.5%菌线威可湿性粉剂3000倍液、5000倍液和20%红芋宝悬浮剂对黄瓜根结线虫的防效分别达到86.4%、63.5%和74.4%,分别比对照增产39.1%、22.3%和34.5%,防效良好、增产效果明显.     

高等职业教育生化实验教改探讨

生化实验教学是提高高职高专有关学生动手能力的重要环节。改进和加强实验教学,努力提高实验教学效果,是培养实用型人才的重要措施,是培养高质量人才的根本保证。实验教学是应用技术推广的助推剂,加大生化实验教学改革力度符合高等职业教育人才培养的需要。1根据专业需要选择实验内容针对不同的专业选择不同的实验内容,减少学生学习的困惑与盲目性。不同专业的学生以后所从事的工作不同,需要的技能亦不同,选择合适的实验内容进行培养、训练更有利于他们今后开展工作。对兽医、畜牧、饲料专业实验着重点应放在影响酶作用的因素、分光光度分析…     

动物生态与生态畜牧业发展

阐述了动物生态学中环境与种群落、环境与种群、环境与个体发育间的关系及宏观调控评价分析的数学方法,运用动物生态学原理指导畜牧业(广义动物生产)生产,提出建立生态畜牧业发展模式的论点。     

Enhancing the value of field experimentation through whole-of-block designs

Precision agriculture (PA) offers opportunities for the development of new approaches to on-farm experimentation to assist farmers with site-specific management decisions. Traditional agricultural experiments are usually implemented in fields with the least possible soil heterogeneity under the assumption that responses to inputs and inherent variation of the soil are additive components of yield variation. However, because the soil in typical fields is not homogeneous, PA has much to offer. Farmers faced with variable conditions need to optimize their management to the variation over space and time on their farm, a problem that is not solved by conventional approaches to experimentation. New designs for on-farm experiments were developed in the 1990s for cereal production in which the whole field was used for the experiment rather than small plots. We explore the extension of this type of experiment to a vineyard in the Clare Valley of South Australia aiming to evaluate options to increase grape yield and vine vigour. Manually sampled indices of vine performance measured on georeferenced ‘target’ grapevines were analysed geostatistically. The major advantage of such an approach is that the spatial variation in response to experimental treatments can be examined. Linear models of coregionalization, pseudo cross-variograms and standardized ordinary cokriging are used to map treatment responses over the experimental area and also the differences between them. The results indicate that both treatment responses and the significance of differences between them are spatially variable. Thus, we conclude that whole-of-block on-farm trials are useful in vineyards.