杀线虫剂的减效因素和科学使用

本文论述了影响杀线虫剂药效的多方面因素，特别介绍了在施入土壤防治线虫病害时发生这些影响因素的研究进展和在防治植物线虫病害的科学和使用。     

草原栗钙土养分状况的初步研究

本文研究了草原栗钙土的养分状况。通过研究初步表明，草原栗钙土的有机质、全氮、全磷在人为活动很少干扰下，不同年份间含量变幅较小。土壤养分的有效化强度，在其它环境因子相似条件下，给土壤温度关系密度。     

中国和日本米糠的利用比较

本文对米糠的组成及有效成分进行了归纳，并对中国米糠的利用现状与日本米糠的开发情况进行了比较，对中国今后米糠资源可能被利用的范围进行了分析。     

A review of the renal system and diurnal variations of renal activity in livestock

Kidneys are the main organs regulating water-electrolyte homeostasis in the body. They are responsible for maintaining the total volume of water and its distribution in particular water spaces, for electrolyte composition of systemic fluids and also for maintaining acid-base balance. These functions are performed by the plasma filtration process in renal glomeruli and the processes of active absorption and secretion in renal tubules, all adjusted to an 'activity-rest' rhythm. These diurnal changes are influenced by a 24-hour cycle of activity of hormones engaged in the regulation of renal activity. Studies on spontaneous rhythms of renal activity have been carried out mainly on humans and laboratory animals, but few studies have been carried out on livestock animals. Moreover, those results cover only some aspects of renal physiology. This review gives an overview of current knowledge concerning renal function and diurnal variations of some renal activity parameters in livestock, providing greater understanding of general chronobiological processes in mammals. Detailed knowledge of these rhythms is useful for clinical, practical and pharmacological purposes, as well as studies on their physical performance.     

高校学生管理法治化研究——以学生权利为视角

在高校依法治校的背景下,高校学生管理工作法治化成为高校依法治校的重要体现,作为高校学生管理工作对象的大学生,他们的权利能否得到保障是学生管理工作法治化的重中之重。文章以大学生权利保护为切入点进行调查,找出当前高校学生管理的侵权行为,就如何加强大学生权利保护与高校学生管理法治化进行研究,努力探寻高校学生管理法治化视野下学生权利保护的有效途径。     

土壤疏水性对土壤和大气间能源分区的影响研究:一个概念的方法

Water repellency （WR） is a phenomenon known from many soils around the world and can occur in arid as well as in humid climates; few studies, however, have examined the effect of soil WR on the soil-plant-atmosphere energy balance. The aim of our study was to estimate the effects of soil WR on the calculated soil-atmosphere energy balance, using a solely model-based approach. We made out evapotranspiration to have the largest influence on the energy balance; therefore the effect of WR on actual evapotranspiration was assessed. To achieve this we used climate data and measured soil hydraulic properties of a potentially water-repellent sandy soil from a site near Berlin, Germany. A numerical 1D soil water balance model in which WR was incorporated in a straightforward way was applied, using the effective cross section concept. Simulations were carried out with vegetated soil and bare soil. The simulation results showed a reduction in evapotranspiration of 30-300 mm year-1 （9%-76%） at different degrees of WR compared to completely wettable soil, depending on the severity degree of soil WR. The energy that is not being transported away by water vapor （i.e., due to reduced evapotranspiration） had to be transformed into other parts of the energy balance and thus would influence the local climate.     

竹梢凸唇斑蚜的发育起点温度及有效积温

在10～30℃之间的5种恒温下观测了竹梢凸唇斑蚜Takecallistaiwanus的发育历期,测得其1～4龄若蚜及全若期的发育起点温度分别为12 76℃,9 24℃,7 28℃,6 45℃和8 10℃,有效积温分别为19 66d·℃,19 88d·℃,28 52d·℃,36 49d·℃和115 82d·℃,可供当地预测该蚜虫发生代数和发生期参考。表2参6     

北方沿海小型单船底拖网的研制和试验

根据北方沿海渔业资源状况和群众渔业渔船的作业特点，研制了小型单船底拖风及网板，网具采用长轴，网腹疏目，身网前段网衣无剪裁比的形式，经一年来生产试验证明产量增加明显，与同马力双船拖网相比，平均单船网产增加４０￣４５％。     

云杉大黑天牛测报及防治的研究

云杉大黑天牛是鞘翅目,天牛科,是我区木材的主要害虫。此种害虫在贮木场,采伐迹地等危害甚烈。我们利用有效积温预测法,历期预测法较为准确的对卵期、幼虫期以及对各个虫态的发生时间及始盛期、高峰期等进行了预报。在此基础上,我们对成虫进行了化学药剂击避及灭卵防治收到很好的防治效果,木材损失率降低了9.7％,木材等级有了提高。     

直刺细铁甲发生规律与综合防治技术

采取室外接虫饲养，结合田间系统调查和普查，对直刺细铁甲Rhadinosa fleutiauxi（Baly）在毕节地区的分布及危害情况、发生规律和综合防治技术进行了研克。结果表明，海拔1070～2220m为该虫的分布区域，除威宁自治县外其余7县（市）均有分布；卵、幼虫、蛹的发育起点温度和有效积温分别为8.98℃、12．53℃、11．32℃和121．44日度、203．93日度和131．68日度；在毕节地区该虫1年发生1代，成虫在土埂子边、沟边及荒地的杂草丛中越冬，其寄主有茅草、马耳朵草等。5月下旬为越冬成虫集中迁入玉米地高峰，6月上旬为产卵高峰。7月上中旬为幼虫危害高峰，7月下旬为幼虫化蛹高峰，8月上中旬为成虫羽化高峰；成虫具有群居性和假死性。迁飞能力较弱，在集中迁入玉米地时实施药荆防治是综合治理的关键技术措施之一；用2．5％敌杀死乳油或2．5％克虱特乳油啧雾对成虫、卵和幼虫防治效果较好。