腐植酸类肥料的研究现状及展望

介绍了腐植酸及腐植酸类肥料的研究发展概况,并从腐植酸的类别、官能团及功能等方面进行了阐述;矿质腐植酸是腐植酸肥料的主要来源,但需经过一些活化处理才能发挥其最大功效;本文重点介绍了腐植酸生物肥、腐植酸液体肥及腐植酸复混肥的研究、开发及应用现状,并对腐植酸类肥料的发展方向作了展望。     

腐植酸肥料研究进展及质量标准体系建设

从腐植酸下游产品的研发程序为切入点,该报告主要介绍了腐植酸在农业领域的研究与应用现状、腐植酸肥料的研究与应用现状以及影响腐植酸肥料发展的主要原因。目前,我国腐植酸肥料质量评价体系建设还有一些难题亟待解决,比如,水溶性腐植酸不能完全检测出来等。腐植酸肥料质量评价体系建设关系到腐植酸行业的发展,对推动腐植酸产业发展意义重大。     

高端与基层的思想碰撞——从“腐植酸水溶肥战略研讨会”看“美邦”创新点

2012年7月30～8月1日,腐植酸肥料领域的领导、专家、学者、企业代表等40多人齐聚山西古城平遥,参加由山西美邦大富农科技有限公司（以下简称“美邦”）组织召开的“腐植酸水溶肥战略研讨会”。本次研讨会以腐植酸水溶性肥料为主要议题,探讨了腐植酸水溶肥料的产业现状、技术开发及应用推广。     

腐植酸肥料的开发应用前景

腐植酸类肥料对土壤改良、增产提质有良好的效用。介绍我国腐植酸资源的储量分布、利用情况及在利用研究上的历史进程。综述腐植酸肥料资源的开发特性,包括腐植酸肥类类型,用法用量,并提出腐植酸肥料发展急需解决腐植酸肥料成本高、腐植酸资源利用率低等问题。     

腐植酸予化肥提质增效

本文收集了国内外有关腐植酸肥料的主要文献,对腐植酸功能特点、腐植酸对化肥增效原理、腐植酸肥料生产工艺及农学表现成果进行系统分析.研究认为,腐植酸肥料兼具改良土壤、增效化肥、刺激生长、增强抗逆、改善品质等功效,对推动肥料技术进步与农业提质导向意义重大,对实现农业大循环低碳化、农事生产生态化和作物品质优质化具有积极作用.     

腐植酸铵肥料分析方法(报批稿)

《腐植酸铵肥料分析方法》(HG/T3276-1999),标准标龄至今已超过10年,随着科学技术和生产实践的发展,以及标准与国际接轨、与相关行业协调一致的需要,腐植酸铵肥料分析方法标准也需要与时俱进进行修订。全国腐植酸肥料标准工作组通过实地考察、肥料展销会或电话等形式对企业进行调查,修订原标准中需要调整及不完善的地方。本刊现将此最新修订的《腐植酸铵肥料分析方法》报批稿全文刊出,以期详细规范腐植酸铵肥料的分析方法。希望行业同仁提出宝贵意见,共同为推动腐植酸行业标准化做出努力。     

水溶肥料的研究现状及展望

综述了国内外水溶肥料的研究现状、生产工艺,功能型水溶肥料(包括含氨基酸、含腐植酸及含海藻提取物水溶肥料)的研究、生产及应用现状,并介绍了水溶肥料存在的问题和发展前景。     

腐植酸肥料与绿色农业

本文通过对腐植酸的起源、腐植酸肥料的特性、绿色农业的要求及特点、腐植酸肥料的应用等方面的阐述，论述了腐植酸肥料在目前绿色农业中的作用、应用现状及发展趋势。     

腐植酸肥料的研究进展及前景展望

阐述腐植酸提取工艺的进展及其功能与应用,以及腐植酸类肥料的开发现状和前景展望。矿质腐植酸是化肥中腐植酸的最主要来源,但需经过氨化、酸解、氧化等活化处理才能发挥其最大功效;生化腐植酸肥料应用潜力巨大,但其理论和应用研究仍然任重道远。     

“第七届全国绿色环保肥料（农药）新技术、新产品交流会”专题报告——对腐植酸肥料标准化几个问题的探讨及建议

1腐植酸类肥料及原料标准几个问题的探讨 （1）水溶性腐植酸类肥料的分类及标准中腐植酸、黄腐酸含量指标的探讨。（2）水溶性腐植酸类肥料标准中指标确定的依据及pH值标准的建议。（3）关于是否设水溶腐植酸测定项目标准的问题。（4）关于有机质含量指标问题的建议。（5）关于生物腐植酸肥料与生化腐植酸肥料的概念及分类问题。     

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。