培育兰州优质鲜食葡萄产业的思考

兰州果业中鲜食葡萄生产相对薄弱，滞后，通过分析我国目前鲜食葡萄的生产发展态势，以及本地区发展存在的问题，潜力，提出发展兰州优质鲜食葡萄产业建议。     

培育兰州优质鲜食葡萄产业的思考

兰州果业中鲜食葡萄生产相对薄弱、滞后,通过分析我国目前鲜食葡萄的生产发展态势,以及本地区发展存在的问题、潜力,提出发展兰州优质鲜食葡萄产业建议.     

绿盲蝽对不同葡萄品种叶片的危害特性

为明确绿盲蝽对不同葡萄品种的危害特性,从我国酿酒葡萄和鲜食葡萄主要种植地区之一的秦皇岛市昌黎县选择了9个酿酒葡萄品种和43个鲜食葡萄品种,对叶片受害程度及同一品种不同叶位的受害程度进行调查分析.结果 表明:不同品种的受害指数存在显著性差异(P＜0.05),酿酒葡萄品种中霞多丽品种的受害程度显著高于其它品种,绿盲蝽对小味...     

温室大棚葡萄栽培技术

新疆石河子地区露地鲜食葡萄栽培面积很广,亩产值上万元,但因集中于秋季上市,价格不稳定,竞争强,影响了葡萄种植户的积极性。石河子市周边依托四通八达的交通运输道路,在成熟的葡萄种植技术的基础上,大胆探索温室葡萄栽培技术,目前已初见成效。     

葡萄根癌病在147团葡萄园区的发生与防治

<正>葡萄根癌病属细菌性病害,寄主范围广,除危害葡萄外,还危害多种果树、林木、花卉、瓜类等,其中以桃树、李树、苹果、梨等危害极重,严重的造成绝收毁园。147团葡萄种植业起步较晚,但发展较快。从2005年建园起,现种植面积达8955亩,其中鲜食葡萄5000亩,主要     

无公害山地生态水晶葡萄病虫害防治技术

贵州省三都水族自治县种植了大面积的无公害山地生态水晶葡萄,主要分布于该县交梨乡、三合镇与普安镇。水晶葡萄在生产中如不适时做好预防,极易发生各种病虫害,既影响产量,又影响质量。为了保证生产优质安全的水晶葡萄,必须采取有效的生物、物理和化学等多种绿色防控措施,对三都水族自治县的无公害水晶葡萄生产提供强有力的保障。     

河西葡萄生态气候适生种植区划

河西栽培葡萄已有3000多年历史,在漫长的栽培过程中,筛选、栽培引进了许多葡萄新品种,使这一地区葡萄越种越好,质量也越来越优。目前葡萄种植已形成规模,无论鲜食还是酿造、制干葡萄种植面积都有明显增加,说明河西具有葡萄适生的优越生态气候。河西地区南依祁连山,北部被腾格里、巴丹吉林大沙漠包围,祁连山为河西绿洲葡萄生长提供了可灌溉水源,沙漠气候为葡萄生长提供了干燥、昼温高夜温低的大温差环境,这里生产的葡萄,色鲜味美,质量上乘,是我国优质葡萄产区之一。具体到一个地区,一个县,哪些地方适宜栽培葡萄,哪些地方不宜…     

几种葡萄病害的识别及防治

<正>随着国内外市场的需求及产业结构的调整,八师葡萄产业发展迅速,建成了鲜食和酿酒葡萄基地。     

2004年兰州市科技进步奖获奖项目简介

一等奖 美国优质、大粒、硬肉葡萄丰产栽培技术研究 内容简介:我国鲜食葡萄品种主要是不耐贮运的中晚熟品种,优质、大粒、硬肉、耐贮的优良晚熟品种十分贫乏.因此,我国传统生产的鲜食葡萄货架期短,淡、旺季分明,季年产销问题一直没有解决.甘肃农业大学从1995年开始已陆续引进26个国外葡萄新品种.经过品种比较试验分析引入的美国红提、黑提、青提系列品种的生态型,我省部分地区具有种植这些优质品种的良好自然条件.     

大理州优质水果产业发展的潜力及对策

大理州低热区以柑桔、葡萄、石榴、枣子及枇杷为主，温凉区以果梅、梨为主的优质鲜食水果种植面积不断扩大，经过多年的发展，依托科技，面向市场，发挥优势，初步呈现出了区域化布局，规模化生产，产业化经营的发展格局，已成为云南省重要的水果基地，成为大理州农村经济发展，农民增收的优势产业。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-