西北农林科技大学图书馆外文图书回溯建库方法与实践

结合西北农林科技大学图书馆外文图书回溯建库的实践，指出回溯建库应重点加强建库方法、质量控制、后期维护三个方面的工作。并对实际工作中遇到的问题及解决方法进行总结。     

西文回溯编目常见问题分析及对策

回溯建库是数据库建设中不可或缺的工作,结合西文回溯编目工作实践,探讨了西文数据回溯建库过程中遇到的常见问题及相应对策,提出了某些针对性的解决方法.     

图书馆回溯建库的实践

图书馆期刊回溯建库工作是图书馆实现现代化服务的基础,是信息资源共享的关键,回溯建库工作是一项庞大的系统工程,质量是图书馆回溯库建设过程中的关键环节,图书馆回溯库建设要按照统一、规范、标准操作,以便质量把控.     

西文图书回溯建库工作的实践研究——以内蒙古农业大学图书馆为例

结合内蒙古农业大学图书馆回溯建库工作实践,介绍回溯建库全过程。建库前做的准备工作有图书加工、确定建库依据、规定著录细则、培训编目人员等,提出套录数据、原编数据以及多卷书著录的具体实施方案。最后笔者对西文图书回溯建库中遇到的问题提出几点思考。     

我馆中文期刊回溯建库的工作回顾

结合中共湖北省委党校图书馆中文期刊回溯建库工作的具体实践,介绍回溯建库过程中,软件的选择,字段标准的制订,模板的制作等具体情况。通过对我馆中文期刊的回溯建库工作的介绍及回顾,起一个抛砖引玉的作用。     

书目数据回溯建库若干问题的探讨

回溯建库工作是图书馆实现自动化、网络化的基础.结合工作实际和我馆的现状.探讨了图书馆从手工管理向现代化管理转变过程中,做好回溯建库工作的重要性,并就建库过程中易出现的问题及处理方案做了全方位的阐释.     

文献的再加工 信息的再利用——我馆密集书库回朔建库工作之我见

从我馆密集书库回溯建库工作的实践，提出图书馆应重视回溯建库工作。因为回溯建库工作是图书馆一项重要的基础性工作，是图书馆建设书目体系、完善文献信息检索系统的重要保证，是图书馆提供文献信息的前提和基本条件。图书馆应定期维护书目数据库，确保书目数据著录的完整性和规范，为书目数据共享打下良好的基础。     

图书馆回溯性书目数据库建设

结合本馆回溯建库的实践经验，从怎样利用外部数据源、怎样选择回溯建库人员、建库方案的制定、建库的具体和方法的实验,肥及回溯书目数据库的质量控制等角控制了如何效率，高质量地建立馆藏回溯性书目数据库。     

UNICORN系统中中文期刊回溯建库实践总结——以陕西省图书馆为例

立足于工作实践,从回溯建库工作的前期准备：制定规则、确定依据、设置流程和工作规范,到实践工作中遇到的实际问题的解决,就回溯建库工作中的问题进行详细论述。     

吉林省农业科学院图书馆“回溯书目数据库”建设初探

回溯书目数据库建设是图书馆现代化建设的核心工作之一.文章简要论述了回溯书目数据库建设的任务作用,并结合吉林省农业科学院图书馆的实际,对建库的依据、工作流程、准备工作及建库中应注意的问题进行初步探讨.     

高校图书馆加强回溯建库工作的意义和对策

结合高校图书馆的实际情况。论述了回溯建库工作的重要性，分析了出现的具体问题，提出了解决问题的相关措施和方法。     

The Efficiency of Three Experimental Designs for Forest Tree Breeding

根据１１ 年生毛白杨对比试验林的观测数据,对３ 种试验设计的效率作了分析．结果表明,在同一试验地里,当拉丁方数是３ ,随机区组和完全随机化试验的区组与重复数分别是８ 和７ 时,相对效率较高．当拉丁方数小于３ 时,完全随机化试验分析优于随机区组试验分析,又优于拉丁方分析;当拉丁方数大于３ 时则出现相反的趋势．在相似条件下,为了经济、可靠地获得试验结果,以拉丁方数在３ 左右、随机区组试验的区组数不小于５ 及完全随机化试验的处理重复数不小于４ 为宜．     

林木育种试验设计效率分析

根据１１ 年生毛白杨对比试验林的观测数据,对３ 种试验设计的效率作了分析．结果表明,在同一试验地里,当拉丁方数是３ ,随机区组和完全随机化试验的区组与重复数分别是８ 和７ 时,相对效率较高．当拉丁方数小于３ 时,完全随机化试验分析优于随机区组试验分析,又优于拉丁方分析;当拉丁方数大于３ 时则出现相反的趋势．在相似条件下,为了经济、可靠地获得试验结果,以拉丁方数在３ 左右、随机区组试验的区组数不小于５ 及完全随机化试验的处理重复数不小于４ 为宜．     

马铃薯群体B品系对晚疫病水平抗性遗传稳定性试验

 1997～1999年,在昆明地区对马铃薯中心提供的马铃薯群体B育种材料进行了晚疫病水平抗性遗传稳定性的田间检验。实验采用完全随机区组（RCBD）的方法,在当地晚疫病菌生理小种存在的条件下,经过3年的田间小区试验筛选,获得了Pn-01、Pn-06等表现水平抗性遗传稳定性与优良农艺性状相结合的品系,为进—步进行试验示范和大面积推广打下了基础。     

Effect of Different Indole-3-Buteric Acid (IBA) Concentrations and Cutting Types on Plane Trees (Platanus orientalis L.)

Effects of different Indole-3-Buteric Acid (IBA) concentrations (0, 1000, 1500 and 2500 ppm) and cutting types (soft wood, semi hard and hard wood) of plane tree were investigated with Randomized Complete Block Design (RCBD) at the Agricultural research station, Charsadda. The maximum survival percentage, plant height (cm), root length (cm), numbers of roots and root weight per cutting were significantly higher in hard wood cuttings. IBA concentration had no speculative effect on plane tree cuttings. Thus, hard wood cutting was the best choice for plan tree propagation.     

绿肥不同施用量对烤烟产质量的影响

采用完全随机区组设计对绿肥不同施用量进行田间试验鉴定,选择红花大金元和K326作为研究对象,采用绿肥玉米秸秆压青还田的方式,在不同的施肥水平下,测定烟叶的农艺性状、烟碱含量以及经济性状。结果表明:绿肥压青还田可以显著改善烟草品种红花大金元和K326的农艺性状,增加总糖、含氮化合物等成分的含量,提高单位面积内的产量和产值,最终提高烤烟的品质。绿肥压青量越大,品质增效越明显,且其增效不随品种的改变而改变。     

Variability in total antioxidant capacity,antioxidant leaf pigments and foliage yield of vegetable amaranth

Twenty vegetable amaranth genotypes were evaluated for total antioxidant capacity, antioxidant leaf pigments, vitamins, and selection of suitable genotypes for extraction of juice in a randomized complete block design(RCBD) with three replications. Vegetable amaranth was rich in chlorophyll, β-cyanins, β-xanthins, betalains, carotene, ascorbic acid and total antioxidant. The genotypes VA14, VA16, VA18, VA15, and VA20 could be selected as amaranth vegtable varieties with high yields and abundance antioxidant leaf pigments and vitamins to produce juice. The genotypes VA13 and VA19 had above-average foliage yield and high antioxidant profiles while the genotypes VA2, VA3, VA9, VA11, VA12, and VA17 had a high antioxidant profiles and below-average foliage yield. These genotypes could be used as a donor parent for integration of potential high antioxidant profiles genes into other genotypes. The correlation study revealed a strong positive association among all the antioxidant leaf pigments, total antioxidant capacity and foliage yield. Selection based on total antioxidant capacity, antioxidant leaf pigments could economically viable to improve the yield potential of vegetable amaranth genotypes. Total carotene and ascorbic acid exhibited insignificant genotypic correlation with all the traits except total antioxidant capacity. This indicates that selection for antioxidant vitamins might be possible without compromising yield loss.     

Efficacy of Botanical Insecticides in Control of Flea Beetle (Phyllotreta cruciferae) on Cabbage (Brassica oleracea Linn) on Field

An investigation of effect of Latana camara,Tephrosia vogelii and Zingiber officinale applied at 5%,10%and 25%concentrations on flea beetle of cabbage was conducted on the Teaching and Research Farm of the Ladoke Akintola University of Technology Ogbomoso in the early seasons of 2011 and 2012.The experiment consisted of 11 treatments laid in a Randomized Complete Block Design(RCBD)with three replications.Data were subjected to analysis of variance and significant means were compared using the Least Significant Difference(LSD)at p0.05.All the tested plant extracts exhibited moderate efficacy in the control of flea beetle.The treatment plant extracts performed as well as synthetic insecticides(0.76±0.05 and 0.76±0.05,respectively).It was discovered that 25%w/v of Z.officinale gave the best yield of 0.50 kg·hm~(-2).The result showed that extract of T.vogelii(0.71±0.00)and L.camara(0.96±0.23)could suppress flea beetle population at different hours of spraying,while Z.officinale showed an effect at 48 HAS(0.71±0.00)and 72 HAS(0.76±0.05)after spraying.     

Exploring influential plant traits for enhancing upland cotton yield under salt stress

This research was conducted to explore genetic material that can yield better under salt stress conditions. The experiment was laid out using 27 upland cotton genotypes in a RCBD 2 factorial arrangement with two replications. Saline water (NaCl at 20 dS/m) was applied after satisfactory emergence was achieved. The crop was raised to maturity and data relating to yield, fiber quality and ionic traits were recorded. Analysis of variance showed significant variations in the germplasm. Plant height, bolls per plant, boll weight, GOT%, staple length, staple strength, K⁺ and K⁺/Na⁺ ratio under salinity stress showed a highly significant correlation with seed-cotton yield. The highest direct effect on seedcotton yield per plant was exhibited by bolls per plant and boll weight. The results from the correlation and path coefficient analyses revealed that although the K⁺/Na⁺ ratio had a strong positively significant association with seedcotton yield, its direct effect on the seed-cotton yield was negative and thus selection on the basis of K⁺/Na⁺ may not be fruitful. Hence, only indirect selection through bolls per plant and boll weight may be effective in increasing the seedcotton yield per plant under salinity stress.     

Effects of compost interactions on the alterations in mineral biochemistry,growth, tuber quality and production of <Emphasis Type="Italic">Solanum tuberosum</Emphasis>

Incorporation of compost in soil will not only protect the environment, but also take advantage of the nutrients and organic matter contained in the compost to enhance soil fertility and crop production. Field experiments were carried out during the 2006/2007 and 2007/2008 growing seasons at the College of Food and Agriculture Farm, United Arab Emirates University. The experiments were established in randomized complete block design (RCBD) with four replications. The plot dimension was 3.2m×2.8 m, with four rows per plot. The treatments were designed to study the effect of compost rates on the potato production and soil fertility properties. Five rates of compost were investigated (control, 40, 80, 120 ton compost per hectare; and inorganic fertilizers (250 kg N·ha⁻¹, 250 kg P₂O₅·ha⁻¹ and 300 kg K₂O·ha⁻¹)). Results of the first growing season 2006/2007 showed that marketable tuber yield, plant height and specific gravity were greater in compost amended soil than in non-amended soil even if inorganic fertilizers were added. Application of 120 ton compost per hectare gave the highest total tubers number, marketable tuber yield, height and specific gravity.