美国猛力牌胶体杀蟑药饵现场效果试验

1993年现场试验结果表明：美国猛力牌胶体杀蟑诱饵条杀蟑效果显著（P＜0．05）．施药15天后灭蟑率为86．08％，最后防效高达99．66％，可以推广应用．     

美国猛力牌（MAXFORCE）杀蟑药饵室内杀蟑效果试验

试验结果证明：美国嘉力公司出品的猛力牌杀蟑药饵对我国常见的德国小蠊、黑胸大蠊和美洲大蠊的杀灭效果良好。取食药饵后2～5天开始死亡，LT50为4～12天，最终死亡率可达100％，只是致死期因虫种而异，依次为黑胸大蠊、德国小蠊、美洲大蠊。中毒后的蟑螂粪便亦可毒杀同种蟑螂，故有“连锁杀蟑”的作用，使杀蟑效果更彻底。该产品对人畜无害，不污染环境，是国际上一种安全、有效、卫生的杀蟑药饵。     

自发气调（MA）结合高效乙烯去除剂对黑宝石李贮藏效果的研究

以黑宝石李为试材,研究MA（0．03mm厚PVC保鲜袋包装）结合高效乙烯去除剂对0-1℃条件下黑宝石李果实贮藏效果的影响。结果表明,MA结合高效乙烯去除剂处理的贮藏效果好于单纯MA处理和0．02mm厚PE打孔袋包装处理,贮藏92d时好果率〉90％,果实硬度〉6kg·cm-2,果肉黄绿色,无明显冷害症状,果实失重率〈1．0％,袋内的乙烯浓度〈O．1μL·L-1,O2浓度为9．84％,C02浓度为5．17％,接近黑宝石李标准气调要求的气体指标。     

高效安全型灭鼠毒铒的研究

用人拒食的拒食剂与诱鼠剂等配成了高效安全型灭鼠诱饵,保证了对人的安全性,提高了对鼠的适口性,由此配成的高效安全型灭鼠毒饵,现场盗食丰达90％以上,灭鼠率达85％以上,实验室死亡率达100％,使用十分方便。     

AN ANALYSIS ON ELIMINATING NOISE OF AE TEST BY SIMULATOR AND THE KAISER EFFECT

In the utilization of the Kaiser Effect of AE as a method of estimating the gecstress in rock, it is very important to eliminate the noise induced at the ends cf a specimen, so sponge pads are put between the upper and lower end surfaces of specimens and bearing plates. In this paper, the attenuation behavior of sounds emitted by AE simulator and propagating in sponges are quantitatively measured. The eliminaion of noise by sponge effect is confirmed by the Kaiser Effect.     

粮温对储粮防护剂药效和残留影响的研究

研究分析了广东地区粮温对储粮防护剂药效和残留的影响。试验结果表明粮温高是导致防护剂药效降低，防护期缩短的重要因素。机械通风使粮温降到一定程度，可以延长防护剂的药效。     

防护剂在储粮害虫综合治理中的作用与性能

本文阐述了防护剂在储粮害虫综合治理中的作用与性能，并介绍了国内目前使用的几种主要防护剂。     

THE STUDY ON INVESTMENT EFFECT OF OLD URBAN DISTRICT REGENERATION

The problem of old urban district regeneration has to be solved in process of ur-ban development.According to the practice of urban construction and the current situation of urbandevelopment in our country,solving this problem is very urgent. At present.there is fewer discussionon old urban district regeneration from its economic and social effect; In this paper.by means of an-alyzing old urban district regeneration and its investment effect, a set of criteria evaluating the in-vestment effect of old urban district regeneration is eastablished. For the first tirne, a new method. Set Statistics-AHP (The Analytic Hierarchy Process)-Entropy method is adopted to evaluate the in-vestment effect,and successfully solve two critical problems,individual criterion evaluation and crit-era' s weight.     

赤霉素对棉铃及种子发育的影响

<正> 许多研究证明,赤霉素对减少棉铃脱落有明显的效果。但有的工作中指出,经赤霉素处理后,棉籽重量略有减轻。赤霉素对棉花种子的发育究竟有无影响?尤其是种子的发芽力如何?至今未见到直接的证据和专门的研究报道。棉花是一重要的优质纤维作物,     

A DISCUSSION ON THE EFFECT OF GROUND WATER IN CIVIL ENGINEERING

In this paper,the acting characteristics and effect of ground water on the stability of construction site and foundations in investigation,design,construction and service of buildings and structures are presented.The main problems of ground water are discussed.     

谷保防霉剂对高水分菜籽防霉试验

采用新型粮食防霉剂“谷保”进行了高水分油菜籽保管试验,试验期间对菜籽温度、霉菌、水分、含油率、酸价、色泽气味及发芽率几项指标进行了检测分析．结果表明,拌有谷保并简易密闭保管的菜籽,12％～15％水分时,能安全保管40d～50d．除酸度增加,发芽率降低外,含油率等主要指标没有显著变化,菜籽水分为24．6％时,也能安全保管20d．谷保防霉剂的防霉攻果因菜籽水分及防霉剂用量的不同而有所差导．     

论砂姜黑土的磷肥效应与优化施用技术

砂姜黑土是黄淮海平原的主要低产土壤之一.在该地区磷肥(P_2O_5) 的适宜用量为每亩4—5公斤,氮磷比值为1—2.小麦氮、磷肥配合的经济最佳施用量N为6.88公斤/亩,P_2O_5为4.25公斤/亩.磷肥在砂姜黑土中的固定强度不大.磷肥的有效施用方法为全部撒施掩底或大部分掩底和少量用作种肥.