不同除草剂品种对移栽水稻田杂草防除效果研究

对7种稻田除草剂防除杂草效果的初步研究表明：水上漂、野老的最后防除效果最佳；精克草星、田草绝、草克净次之；稻草净和稻草必净相对效果较差。但精克草星、田草绝、草克净、稻草净和稻草必净防除效果与对照均达到极显著水平。     

玉米生长中后期主要杂草种类及防除研究

玉米田中后期主要杂草有马唐、无芒稗、铁苋菜、蓼、莎草、鸭舌草、竹节菜、旱莲草等。6种除草剂对玉米田中后期杂草防除结果表明:百草枯、克无踪、灭绿三种除草剂对多种一年生杂草有较好的防除效果,株防效及鲜重防效分别达77.00%,89.74%;75.52%,93.30%;75.44%,83.65%。     

噁唑酰草胺EC防除水稻免耕直播田禾本科杂草试验

为明确10%噁唑酰草胺EC对水稻直播田禾本科杂草的防除效果及使用技术,特进行了其田间药效试验,结果表明,10%噁唑酰草胺EC对免耕直播稻田禾本科杂草千金子、稗草等具有良好防效,且安全性好,使用剂量以每667m2用80mL为宜。因此,噁唑酰草胺可替代氰氟草酯用于水稻直播田禾本科杂草的防治,在生产上具有良好的推广前景。     

苹果树腐烂病的药剂防治研究

从延长苹果示范区富士苹果树上获取含有苹果树腐烂菌的腐烂组织,通过常规组织分离法获得纯净苹果腐烂菌,以抑菌圈直径为指标,分别用不同浓度的药剂来测定其抑菌的实用效果,采用单种药剂和不同药剂结合的方法探究并挑选出合适浓度的实用药剂.结果显示,单种药剂,如100倍液菌必净、750倍液的福美胂抑菌效果较好;两种药剂结合使用,50倍液菌必净+750倍液福美胂、1500倍液福美胂+100倍液菌必净+1000倍液病毒酰胺是优良的抑菌搭配组合.     

有趣的草囤(大班)

目标:1.充分尝试草囤的各种玩法,发展跳、跨能力及身体协调能力。2.大胆尝试、共同分享。准备:用稻草自制的草囤若干。过程:一、热身活动1.出示草囤。你们见过它吗?它是用什么做的?你们猜猜今天老师拿它来做什么?2.这个玩具叫草囤。它是老师用稻草做出来的,方法是先把一束稻草捆扎成筒状,然后在外面用稻草串绕起来。现在我们每人拿一个草囤和老师一起做热身运动吧。3.幼儿双手扶草囤练习下蹲、踢腿、弯腰、扭胯等动作,单手扶草囤练习转圈、下蹲、踢腿、弯腰、扭胯、与同伴交换位置等动作。二、探索草囤的多种玩法1.幼儿个别尝试。草囤说它有…     

药茶22方

1.八仙茶。粳米、黄粟米、黄豆、赤小豆、绿豆(五者炒香熟)各750克,细茶500克,净脂麻375克,净花椒75克,净小茴香150克,泡干白姜、炒白盐各30克。上药11味均碾成细末,然后合为一处,外加麦面(炒黄熟)拌匀,放入罐瓶中贮藏。胡桃仁、南枣、松子仁、白砂糖随意加入。每次3匙,白开水冲服。功用:益精悦颜,保元固肾。 2.牛乳红茶。鲜牛乳700克,红茶、食盐适量。将红茶用水煮熬成浓汁,再将牛乳煮沸盛入碗里,掺和红茶,放入少许食盐。每日清晨一次,空腹服食。功用:益气填精。     

克鼠星1号防治褐家鼠和小家鼠的研究

通过室内鼠罐饲养测定和现场灭鼠试验,对克鼠星1号在防治褐家鼠和小家鼠中的效果、适口性和安全性进行了研究。结果表明,克鼠星1号适口性好,褐家鼠和小家鼠的摄食系数高达0．76～1．02。克鼠星1号对褐家鼠和小家鼠的杀灭效果高,其中室内杀灭效果均为100．0％;野外试验为93．3％～97．9％。安全性测定显示,克鼠星1号亦是一种安全型灭鼠剂。鸡、猫和狗误食后15～30min即发生呕吐反应,无中毒或二次中毒现象发生。     

家乡的草白龙

我已经忘记了家乡是什么节日才会舞起草白龙,但草白龙带给家乡的欢声笑语我却常记心中。村里在制作草白龙时,是在一块宽大的田里。稻谷收割以后。稻草就堆在田里,村里人也就就地取材。我父亲也是其中一员。白天是没有空闲的,晚上我就跟在父亲身后到田     

不同除草剂对玉米田杂草防效研究

玉米播后苗前用五种除草剂对苗期杂草进行防除.结果表明:90%禾耐斯+48%百草敌(水剂)和50%的都阿悬乳剂对玉米田一年生杂草防效均较好,其株防效及鲜重防效分别达92.4%、87.6%、97.3%、95.0%;而480克/升拉索乳油,50%乐丰宝对禾本科杂草的防效较好,其株防效及鲜重防效分别为87.9%、93.1%、87.7%、95.5%.     

稻草乐

目标:让幼儿感受稻草玩具带来的乡土情趣,促进幼儿基本动作的协调发展,发展幼儿的交往能力。材料与工具:稻草、用稻草编成的草辫、彩色布条、剪刀、针线、木条、竹筒。一、草梯制作方法:1.取两条约3米长的草辫和若干40厘米长的草辫。2.将长辫平行摆放,间距约为30￣35厘米,将短辫按35厘米的间距垂直于长辫摆放,呈梯状。3.将短辫两端固定在长辫上。玩法:1.跳格子:将草梯平铺在地上,幼儿双脚并拢从草梯一端逐格跳到另一端。2.越障碍走:低年龄幼儿学习从草梯一端逐格越过梯绳走到另一端。3.开火车:将草梯按格套在一列幼儿身上成火车状,玩开火车…     

孤寂文坛上的双子星座——苏青、张爱玲比较

苏青、张爱玲是40年代沦陷区上海文坛上最负盛誉的女作家，她们都以周围的题材从事写作，张爱玲以小说创作擅长，而苏青以散文写作著名。她们年龄相似、性情相同，又都写女性题材，在生活圈子、爱好情趣方面也有许多相同之处，但她们以其独特的创作风格和写作技巧，在上海的特殊气氛和背景下，大红大紫一时，可视为孤寂文坛上的双子星座。     

道光《城口厅志》的三种印本

《城口厅志》应只有一种版本,即刘绍文主持的道光24年刻本。所见三种印本中,四川本印刷时间更早,书版的毁损程度较轻。城口本、重庆本印刷时间约晚50年,书版的毁损程度较重,但印刷质量较好,内容更完整,并增补有少量光绪年间的材料。城口本中的补正出自近人,讹误较多。     

东汉洛阳地区的疫病与信仰

东汉时期的洛阳地区,人口众多,疫病频繁发生,出现了两个疫病高峰期。除积极进行医疗救治外,在洛阳地区,出现了多种与疫病相关的避疫信仰。有的是传统的信仰模式,有的是早期道教信仰。使东汉时期的洛阳,可能成为早期道教起源的一个重要地区。     

宋代巴蜀诗社略论

宋代巴蜀诗社不多,大概只有八、九个,这些诗社主要分布于宋之成都府及宋之夔州路,其中成都府诗社最多。另外,巴蜀诗社规模皆不大,大多都是由巴蜀本地官员组成。对宋代巴蜀诗社情况进行具体分析,也许可以为研究宋代巴蜀文学提供一个新的视角。     

The Relationships among Verbal Skills of Primary School Students with Specific Learning Disabilities and a Typically Developing Comparison Group

The relationships among verbal skills of primary school students with learning disabilities and a typically developing comparison group were studied and compared with written tasks carried out in Estonian classrooms. Word defining, categorising/justifying, guessing, and memorising tasks were used. The participants were 251 students in Grades 2–4; of these, 163 were described as achieving normally and were in regular education classrooms, and 88 were diagnosed as having specific learning disabilities and attended special schools or classes for students with specific learning disabilities. Except for performance on the memorising tasks by grade, all the scores were better in upper grades. Children with learning disabilities performed less well than the children in the typically developing comparison group on all the tests. Associations between the results of various tests were stronger in the typically developing comparison group than in the group of children with learning disabilities.     

类别感知对类别学习中额外特征学习的影响

两个实验采用联结学习范式,分别探讨知觉类别和语义类别材料中,类别感知对特征学习的影响.结果发现,即使是在联结学习范式中,当学习者感知学习材料存在类别时,不仅关注可以有效预测结果的特征,也会关注类别中的其他特征.同时,在知觉类别和语义类别材科中都发现了相同的结果.本实验结果说明,当学习者感知学习材料中存在类别时,即使是在联结学习范式中,学习者也会像类别学习范式中一样,学习额外特征,支持对存在类别的感知,是影响学习者特征学习的重要原因.     

Introducing teaching cases with face-to-face and computer-mediated discussion: Two multi-classroom quasi-experiments

Two studies were conducted in multisection introductory child and adolescent development classes to determine effects of introducing abbreviated teaching case studies that were then discussed either in face-to-face or online formats. Students receiving teaching case studies in either format in both classes showed improved ability to critically analyze probe and final cases compared to control participants. Both case study groups in the child development class also showed increased application of psychological concepts in analyzing new cases. No differences in course knowledge were expected as a function of condition and none were found. Hypothesized case-related increases in efficacy for teaching also were not observed. Results were interpreted as supporting a case analysis approach in educational psychology classes and use of online methods for presentation and discussion of abbreviated cases.     

Nurturing generic capabilities through a teaching and learning environment which provides practise in their use

Results from a programme level survey at a university in Hong Kong were used to select six departments which had good records in developing graduate capabilities. Focus group interviews were conducted with students in the departments to discover which capabilities students thought were important, how the capabilities were nurtured and the influence of the teaching and learning environment on their development. Analysis of the data showed that the findings were consistent with a previous quantitative model. Capabilities were developed if the curriculum made demands on students to practise the use of the capability. Intellectual capabilities were nurtured through active learning experiences, performed in class or for assessment, which required the practise of the capability. Communication and teamwork skills developed through group projects and activities in which communication was practised.     

Developmental factors influencing exceptional status at age six years

A multivariate analysis of exceptional states in 384 children aged 6 years is presented. Predictors were six items of information in the domain of child development, four items were in the domain of social factors, and three items were maternal traits. Criteria were six of nine exceptional states on which there were enough cases for multivariate analysis. The AID-4 interaction regression method was the technique of analysis applied to data gathered by prospective longitudinal study. No consistent sets of predictors were found for the criteria. However, Coddington's Life Changes scores were frequently observed as prime sources of variance. Social class scores were also important influences on criteria of exceptionality.     

咪达唑仑持续静脉推注治疗小儿难治性惊厥的疗效观察

目的:观察咪达唑仑持续静脉推注治疗小儿难治性惊厥的临床疗效及不良反应。方法:选择以频繁惊厥为主要表现且按传统方法抗惊厥治疗无效的住院儿童42例。研究分两组,对照组21例在出现频繁惊厥采用苯巴比妥联用安定治疗无效后以安定加入葡萄糖溶液静脉持续滴注,研究组则给予咪达唑仑静脉持续推注。对比两组疗效,同时观察两组的不良反应。结果:研究组21例患儿有20例惊厥完全得到控制,1例无效,有效率为95.2%,且气道分泌物少,无明显呼吸抑制及其他不良反应。对照组仅12例惊厥被完全控制,9例无效,有效率为57.1%,且部分患儿在治疗过程中出现呼吸抑制,气道分泌物增加等不良反应。两组有效率具显著性差异(P<0.01)。结论:咪达唑仑对小儿难治性惊厥疗效明显,不良反应少,可作为治疗小儿难治性惊厥的首选方法。