克莠灵防除大豆田阔叶杂草试验

１９９５年用克莠灵水剂防除大豆田阔叶杂草。阜南，含山两地试验结果表明，每公顷用１．５￣２．０公升克灵１５天株防效在９８．２￣９９．１％，鲜重防效９７．５￣９９．０％，克莠灵为大豆田理想的阔叶除草剂。     

28%乙.嗪可湿性粉剂防除大豆田杂草

乙。嗪可湿性粉剂虽一次性大豆田除草剂。试验结果表明，亩用有效剂量６０克，除草效果达９０％以上，对大豆安全，扩大了杀草谱，可防除整个大豆生长期杂草。     

技术市场

技术市场·３０％克多福大豆种衣剂项目简介３０％克多福种衣剂，按大豆重量１．５％包衣，对大豆苗期病虫害的防治效果十分显著。对蛴螬的防效为９６％，对孢囊线虫防效为７４％，对潜根蝇防效为８２％，对根腐病防效为８５％。其防效远优于克百威、多菌灵、福美双单一制...     

5%精喹禾灵乳油防除大豆田杂草的药效试验

试验结果表明５％精喹禾灵乳油对大豆田狗尾草，马唐，牛筋草，干金子、旱稗等多种禾本科杂草具有优良的防除效果，在同等用量下与进口５％精禾草克的防效相当，且对大豆生长十分安全，有明显的增产效果。     

乳氟禾草灵除草剂产品登记冷淡品种

乳氟禾草灵除草剂主要登记在大豆田、花生田防除阔叶杂草。法国安万特作物科学公司于1989年在我国正式登记商品克阔乐24%乳油,防除大豆田阔叶杂草用量(有效成分)(北方)108-144克/公顷,(南方)90-108克/公顷。防除     

咪草烟应用技术研究

咪草烟系咪唑啉酮类豆田除草剂，在室内、温室和田间进行了咪草烟活性、安全性和施药条件的试验。在５０￣１００克有效成分／公顷剂量下可有效防除禾本科杂草和阔叶杂草（除铁苋菜和鬼针草）。在温室内５０￣２００克有效成分／公顷对大豆安全，但在大豆三片三出复叶斯后施用易产生药害。咪草烟在土壤中残留时间长，对后茬敏感作物易产生药害，其安全间隔期有待进一步研究。     

药肥混剂拌种防治大豆苗期病虫害及增产效果的研究

采用六种不同的混剂做大豆拌种对比试验 ,调查不同混剂对大豆苗期病虫害的防治效果。结果表明 :35 %多·克·福 (有效成分 :多菌灵、克百威、福美双 )种衣剂拌种对大豆苗期病虫害的防治效果最好 ,增产效果以 35 %多·克·福种衣剂加益微增产菌的混剂拌种为最佳。     

复方卵磷脂

卵磷脂是生产植物油类的副产物经加工精制而成,完全无毒,是药用保健佳品、多种糕点食品的添加剂。它广泛应用在农业、食储、橡胶、医药卫生、化妆品和水果的贮藏保鲜上。复方卵磷脂的配制方法是:(1)精制的大豆卵磷脂(含量90％以上)75克,硝酸钙115克,2.4-D4.8克;(2)精制的大豆卵磷脂     

氯嘧黄隆在大豆田土壤中的残留动态研究

在大豆用施用氯嘧黄隆后除草增产效果显著。以２克／亩，４克／亩有效成分配成６６．７ｐｐｍ，１３３．３ｐｐｍ药液喷雾，综合南京，北京两地试验结果，氯嘧黄隆在土壤中的原沉积量分别为０．０７７３ｐｐｍ，０．１５１５ｐｐｍ；半衰期分别为１８．７３天，１７．４０天；最终残留量均低于３ｐｐｂ。     

10%克草特乳油防除大豆田阔叶朵草

10%克草特乳油近年来在我地使用面积逐渐扩大,1998至1999两年共使用面积0.18万hm2,为进一步研究克草特在夏大豆田的除草效果、杀草谱、适宜用量以及对大豆的安全性等关键应用技术,组织实施了本项田间药效试验.     

Insect antifeedant properties of anthranoids from the genusVismia

Vismiones and ferruginins, representatives of a new class of lypophilic anthranoids from the genusVismia were found to inhibit feeding in larvae of species ofSpodoptera, Heliothis, and inLocusta migratoria.     

Direct observation of freeze-thaw instability of latex coatings via high pressure freezing and cryogenic SEM

Despite its industrial importance, the subject of freeze-thaw (F/T) stability of latex coatings has not been studied extensively. There is also a lack of fundamental understanding about the process and the mechanisms through which a coating becomes destabilized. High pressure (2100 bar) freezing fixes the state of water-suspended particles of polymer binder and inorganic pigments without the growth of ice crystals during freezing that produce artifacts in direct imaging scanning electron microscopy (SEM) of fracture surfaces of frozen coatings. We show that by incorporating copolymerizable functional monomers, it is possible to achieve F/T stability in polymer latexes and in low-VOC paints, as judged by the microstructures revealed by the cryogenic SEM technique. Particle coalescence as well as pigment segregation in F/T unstable systems are visualized. In order to achieve F/T stability in paints, latex particles must not flocculate and should provide protection to inorganic pigment and extender particles. Because of the unique capabilities of the cryogenic SEM, we are able to separate the effects of freezing and thawing, and study the influence of the rate of freezing and thawing on F/T stability. Destabilization can be caused by either freezing or thawing. A slow freezing process is more detrimental to F/T stability than a fast freezing process; the latter actually preserves suspension stability during freezing. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004 in Chicago, IL. Tied for first place in The John A. Gordon Best Paper Competition.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Bark and Ambrosia Beetles in the Southeastern US

In 2002–2004, we examined the flight responses of 49 species of native and exotic bark and ambrosia beetles (Coleoptera: Scolytidae and Platypodidae) to traps baited with ethanol and/or (−)-α-pinene in the southeastern US. Eight field trials were conducted in mature pine stands in Alabama, Florida, Georgia, North Carolina, and South Carolina. Funnel traps baited with ethanol lures (release rate, about 0.6 g/day at 25–28°C) were attractive to ten species of ambrosia beetles (Ambrosiodmus tachygraphus, Anisandrus sayi, Dryoxylon onoharaensum, Monarthrum mali, Xyleborinus saxesenii, Xyleborus affinis, Xyleborus ferrugineus, Xylosandrus compactus, Xylosandrus crassiusculus, and Xylosandrus germanus) and two species of bark beetles (Cryptocarenus heveae and Hypothenemus sp.). Traps baited with (−)-α-pinene lures (release rate, 2–6 g/day at 25–28°C) were attractive to five bark beetle species (Dendroctonus terebrans, Hylastes porculus, Hylastes salebrosus, Hylastes tenuis, and Ips grandicollis) and one platypodid ambrosia beetle species (Myoplatypus flavicornis). Ethanol enhanced responses of some species (Xyleborus pubescens, H. porculus, H. salebrosus, H. tenuis, and Pityophthorus cariniceps) to traps baited with (−)-α-pinene in some locations. (−)-α-Pinene interrupted the response of some ambrosia beetle species to traps baited with ethanol, but only the response of D. onoharaensum was interrupted consistently at most locations. Of 23 species of ambrosia beetles captured in our field trials, nine were exotic and accounted for 70–97% of total catches of ambrosia beetles. Our results provide support for the continued use of separate traps baited with ethanol alone and ethanol with (−)-α-pinene to detect and monitor common bark and ambrosia beetles from the southeastern region of the US.     

Methyl 2,4,6-decatrienoates Attract Stink Bugs and Tachinid Parasitoids

Halyomorpha halys (Stål) (Pentatomidae), called the brown marmorated stink bug (BMSB), is a newly invasive species in the eastern USA that is rapidly spreading from the original point of establishment in Allentown, PA. In its native range, the BMSB is reportedly attracted to methyl (E,E,Z)-2,4,6-decatrienoate, the male-produced pheromone of another pentatomid common in eastern Asia, Plautia stali Scott. In North America, Thyanta spp. are the only pentatomids known to produce methyl 2,4,6-decatrienoate [the (E,Z,Z)-isomer] as part of their pheromones. Methyl 2,4,6-decatrienoates were field-tested in Maryland to monitor the spread of the BMSB and to explore the possibility that Thyanta spp. are an alternate host for parasitic tachinid flies that use stink bug pheromones as host-finding kairomones. Here we report the first captures of adult and nymph BMSBs in traps baited with methyl (E,E,Z)-2,4,6-decatrienoate in central Maryland and present data verifying that the tachinid, Euclytia flava (Townsend), exploits methyl (E,Z,Z)-2,4,6-decatrienoate as a kairomone. We also report the unexpected finding that various isomers of methyl 2,4,6-decatrienoate attract Acrosternum hilare (Say), although this bug apparently does not produce methyl decatrienoates. Other stink bugs and tachinids native to North America were also attracted to methyl 2,4,6-decatrienoates. These data indicate there are Heteroptera in North America in addition to Thyanta spp. that probably use methyl 2,4,6-decatrienoates as pheromones. The evidence that some pentatomids exploit the pheromones of other true bugs as kairomones to find food or to congregate as a passive defense against tachinid parasitism is discussed.     

2007～2008年世界塑料工业进展

收集了2007年7月～2008年6月世界塑料工业的相关资料,介绍了2007～2008年国外塑料工业的发展情况,提供了世界塑料产量、消费量及全球各类树脂的需求量及产能情况.按通用热塑性树脂(聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂)、工程塑料(尼龙、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚)、特种工程塑料(聚苯·硫醚、液晶聚合物、聚醚醚酮)、通用热固性树脂(酚醛、聚氨酯、不饱和聚酯树脂、环氧树脂)不同品种的顺序,对树脂的产量、消费量、供需状况及合成工艺、产品应用开发、树脂品种的延伸及应用的进一步扩展等技术作了详细介绍.     

2005～2006年国外塑料工业进展

收集了2005年7月～2006年6月国外塑料工业的相关资料,介绍了2005—2006年国外塑料工业的发展情况。提供了世界塑料产量、消费量及全球各类树脂生产量以及各国塑料制品的进出口情况。作为对比,介绍了中国塑料的生产情况。按通用热塑性树脂（聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂）、工程塑料（聚酰胺、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚）、通用热固性树脂（酚醛、聚氨酯、不饱和树脂、环氧树脂）、特种工程塑料（聚苯硫醚、液晶聚合物、聚醚醚酮）的品种顺序,对树脂的产量、消费量、供需状况及合成工艺、产品开发、树脂品种的延伸及应用的扩展作了详细的介绍。