股骨颈髓芯钻孔减压骨条植骨术联合自体骨髓干细胞混悬液移植治疗Ⅰ、Ⅱ期股骨头坏死

目的观察股骨颈髓芯钻孔减压骨条植骨术联合自体骨髓干细胞混悬液移植治疗和干预Ⅰ、Ⅱ期股骨头坏死的临床疗效。方法根据国际骨循环研究学会（ARCO）骨坏死分期标准,选取Ⅰ、Ⅱ期股骨头坏死24例（30髋）。治疗组17例（22髋）,对照组7例（8髋）。治疗组经过自体骨髓干细胞采集、分离、髓芯减压后,先注射自体骨髓干细胞混悬液入股骨头病灶内,再把自体骨髓干细胞混悬液和骨条混合植入。对照组只行股骨颈髓芯钻孔减压术。结果所有患者均获10~26个月的随访,行髋关节Harris评分和影像学检查。①髋关节Harris评分：治疗组由（54.82±9.62）分升至（82.36±8.06）分,优良率为86.36%。对照组由（55.12±7.95）分升至（63.84±8.77）分,优良率为50.00%。②髋关节影像学检查：治疗组仅2例（2髋）发展为Ⅲ期塌陷。对照组3例（4髋）发展为Ⅲ期塌陷。结论股骨颈髓芯钻孔减压骨条植骨术联合自体骨髓干细胞混悬液移植治疗Ⅰ、Ⅱ期股骨头坏死是一种安全、有效的方法。

自体髂骨条植骨联合锁定钢板治疗Neer3/4型肱骨近端骨折的临床研究

目的探讨自体髂骨条植骨(AICG)联合肱骨近端锁定钢板(LPHP)治疗Neer3/4型肱骨近端骨折(PHF)的临床疗效。方法我院诊治的Neer3/4型PHF患者90例,其中44例行LPHP治疗(钢板组),46例行AICG联合LPHP治疗(联合组)。对比两组肩关节功能、活动度、疼痛评分、围术期指标和并发症情况。结果联合组手术时间和术中出血量高于钢板组,但骨痂出现时间、骨折愈合时间及住院时间均短于钢板组(P<0.05);术后2、3个月,联合组视觉模拟疼痛(VAS)评分低于钢板组(P<0.05);术后6个月、1年,联合组前屈上举、外展和内外旋度数高于钢板组(P<0.05);术后1年,联合组疼痛、日常活动、活动度和肌力分值高于钢板组(P<0.05);两组并发症比较差异无统计学意义(P>0.05)。结论AICG联合LPHP可缓解Neer3/4型PHF患者疼痛,促进肩关节恢复。

双行条植是红壤茶园适宜种植方式

在等量施肥的红壤茶园中,设单行条植、双行条植和三行条植三种种植方式,分别亩植茶4041株、8082株和12122株进行比较试验.五年结果表明:双条植宽行仅稍窄于单条植,前期同样可以间种绿肥,取得培肥改土的功效;双条植比单条植茶园投产早,收益快,第五年产量即几乎赶上三条植,能取得持续丰产优质效果.长期大规模生产实践也证明,双条植是红壤茶国较适宜的种植方式,可以大面积推广.

骨条植骨固定加桡骨茎突切除治疗腕舟骨骨不连

目的:报道应用骨条植骨固定加桡骨茎突切除术治疗腕舟骨骨不连的临床应用效果。方法:用桡骨近端骨条植骨固定腕舟骨骨折并切除桡骨茎突治疗腕舟骨骨不连23例。结果:23例全部获得随访,随访时间1～2年,骨性愈合率100％,愈合时间2～3个月,腕关节功能恢复正常。结论:该手术方法操作简便,损伤小,疗效好,是治疗腕舟骨骨不连的有效方法。

低丘红壤地区宜推广茶树双行条植

江西省红壤丘陵地区,具有气候温暖、雨量充沛、土层深厚、排水良好、光照充足、有效积温高等有利茶树高产的条件,只要针对红壤存在的淋溶作用强、有机质含量少、蓄水保肥性差、结构不良、土壤较瘠薄等缺点,不断进行改造,种茶是大有可为的。

苹果树腐烂病疤条补植皮的观察研究

苹果树腐烂病是发生在我国北方果园的一种最严重的病害,发病率多在20％～40％,有个别果园甚至高达70％以上,还有许多果园因腐烂病严重危害而遭到毁灭。因此如何防治腐烂病已成为当前果品生产中亟待解决的问题。我们从1989年5月开始,用条补植皮的方法,对防治腐烂病进行了观察研究,经过4个多月的反复试验,不断改进植皮方法,终于取得了明显效果。

间作密植和单行茶园节肢动物群落组成差异

:1 998年 1～ 1 2月每月下旬 ,对皖南敬亭山茶场栗 -茶间作、梨 -茶间作、3行密植和单行条植茶园节肢动物群落的调查表明 :植食性昆虫种数分别占各类型茶园总物种数 51 .9%、53.6%、54.4 %和 56.6% ,个体数依次占各类茶园总个体数 92 .0 %、93.5%、93.6%和 95.0 % ;捕食性昆虫和捕食螨种数则分别占 1 1 .3%、1 0 .0 %、9.8%和 1 0 .9% ,个体数占 2 .0 %、1 .1 %、2 .0 %和 1 .5% ;寄生性昆虫种数占 9.2 %、9.1 %、9.3%和 9.3 % ,个体数占 1 .8%、1 .1 %、1 .8%和 1 .3 % ;蜘蛛种数占 2 4 .7%、2 0 .1 %、2 2 .4 %和 1 9.4 % ,个体数占 3.5%、3.4 %、2 .1 %和 1 .8%。 4类茶园中的优势类群都是鳞翅目、同翅目、膜翅目、双翅目和蜘蛛目。月平均丰富度 ( S)和多样性指数 ( H′)大小顺序 :栗 -茶间作 ( S=74 ,H′=1 .33)、梨 -茶间作 ( S=4 9,H′=1 .2 4 )、3行密植 ( S=31 ,H′=1 .0 3)和单行条植茶园 ( S=2 3,H′=0 .89)。主成分分析揭示了群落稳定性的大小 :栗 -茶间作 >梨 -茶间作 >3行密植 >单行条植茶园。

Study on High-yield Potential for Maize Varieties in Mountain Area of Yunnan-Guizhou Plateau

By field experiments with Uniform Design, the effects of planting density and nitrogen rate on three varieties （Yunrui No.8, Yunrui No.6 and Yunrui No.88） grain yield under different ecological conditions were studied in Yunnan Province. The results showed that the grain yields were different among the five experiment locations, when increasing of planting density, it did not affected the plant height, ear height and ear factor, with the planting density increased, stem diameter, leaf width, ear length, number of grains per row and 1 000-grain weight decreased sig- nificantly, but the grain yield of the third varieties increased. High planting density had a negative impact on ear traits, but the grain yield increased by high-density compensate for the adverse effects.Control space and time of fertilizer application can reach the highest yield under less Nitrogen fertilizer Yunrui 88 had the charec- teristics of wide range of adaptability and the density-tolerance, high-yielding poten- tial, which was favorable in planting on large areas.

古泰盆地喝茶风情

古泰盆地喝茶风情江西省蚕茶研究所吴英藩１９８４年暮春４月，应泰和县农业局之邀请，至盛产传统名茶──蜀口茶产地马市；只看一棵棵翠绿的茶树，把一座座红色的山岗和江水冲积的大片沙洲，盖在得密密层层，微风吹去，碧波滚滚，涟骑万顷。俄而缓步街头，一条狭长的街道...

冷凉区露地甜椒综合增产栽培技术

阳原县是供应京津淡季甜椒的主要基地,近年来由于在栽培技术上存在一些问题,致使甜椒生产出现大面积减产,其中主要原因是病毒病和疫病危害所造成,一般减产30～50％,严重者减产80％,部分绝收。针对这种情况,采取了六项增产栽培技术,经过示范推广,取得了显著效果,综合技术示范田生长表现突出的亩产3960公斤,一般示范田亩产3100公斤,每亩比对照增产1100公斤。比常年增产600公斤,增产率为24％。示范推广面积6660亩,新增商品蔬菜733万公斤,纯增效益329.

合理利用光能茶园大可增收——谈谈安化县提高茶园单产的途径

一、如实的现状安化县茶叶生产,有光辉灿烂的历史,对经济发展,有卓越的贡献,在全县农业生产中,过去、现在、将来均是一大优势。解放后,由于党和政府采取了一系列的措施,茶叶生产得到了很大发展。近十余年来,连年大丰收,特别是党的十一届三中全会后,由于贯彻了实事求是的思想路线。

Soil Phosphorus Dynamics as Influenced by Land Use Changes in Humid Tropical, Southwest China

Land use changes can greatly influence soil phosphorus (P) dynamics, especially when converting native forests to agricultural land. Soils in Xishuangbanna, which is one of southwest China s tropical areas that maintain fragments of primary forests, were studied to a) evaluate the effect of two common land use changes, conversion of forests to agricultural land or rubber tree plantation, on the dynamics of available P and total P in bulk soils as well as total P in particle size fractions; b) assess the rel…

Biosynthesis of Succulent Bamboo Shoots of Bambusa balcooa into Phytosterols and Its Biotransformation into ADD

Fermentation of the succulent bamboo shoots of Bambusa balcooa Roxb. resulted in an enrichment of phytosterols from 0.12% to 0.62% dry weight as compared to that of the fresh unfermented samples. The bacterial strains responsible for higher accumulation of phytosterols during fermentation of the bamboo shoots have been isolated and further extraction and purification of the crude phytosterols (isolated from the fermented samples) were done by TLC, UV, NMR, IR and Mass spectral analysis. The isolated phytosterols (β-sitos-terols) were then subjected to microbial transformation which yielded a considerable amount of androsta-1, 4-diene-3,17-dione (ADD) in the incubation mixture in presence of metabolic inhibitors (α, α＇-dipyridyl and sodium arsenate).

Decomposition of Plant Materials in Upland and Submerged Soils Under Different Climatic Conditions

The decomposition of plant materials in soil, along with the factors affecting it, has been frequently studied, and much information has been accumulated. Most reports indicated that the decomposition of organic materials proceeded more slowly in paddy soil than in upland soil because of the insufficient 02 supply, the lower soil temperature and the weaker activity of aquatic invertebrates in the former as compared with those in

Effect of Topography and Accessibility on Vegetation Dynamic Pattern in Mountain-hill Region

Knowledge of both vegetation distribution pattern and phenology changes is very important.Their complicated relationship with elevation and accessibility were explored through a geographically weighted regression(GWR) framework in Fujian province,China.The 16-day time series of 250 m Moderate Resolution Imaging Spectroradiometer(MODIS) Enhanced Vegetation Index(EVI) dataset from 2000 to 2010 was applied.Wavelet transform method was adopted to decompose the original time series and construct the annual maximum EVI and amplitude of the annual phenological cycle(EVI).Candidate explaining factors included topographic conditions,accessibility variables and proportions of primary vegetation types.Results revealed very strong positive influence from parameters of elevation and accessibility to big rivers and negative effect from accessibility to resident on both maximum EVI and phenological magnitude through ordinary linear least square(OLS) regression analysis.GWR analysis revealed that spatially,the parameters of topography and accessibility had a very complex relationship with both maximum EVI and phenology magnitude,as a result of the various combinations of environmental factors,vegetation composition and also intensive anthropogenic impact.Apart from the continuously increasing trend of phenology magnitude with increasing altitude,the influence of topography and accessibility on maximum EVI and phenological magnitude generally decreased,even from strongly positive to negative,with increasing altitude or distance.Specially,the most rapid change of correlation coefficient between them was observed within a low elevation or close distance;less variation was discovered within a certain range of medium altitude or distance and their relationship might change above this range.Non-stationary approaches are needed to better characterize the complex vegetation dynamic pattern in Mountain-hill Region.

Wheat stripe rust resistance gene Yr24/Yr26：A retrospective review

The objective of this review is to describe events in China and elsewhere that are related to the discovery, genetic identification, use, and ultimate break-down of a single wheat gene for resistance to stripe rust, namely Yr24/Yr26. In our retrospective analysis there was an early assumption of at least three genes at or near the locus, which caused an erroneous presumption of genetic diversity for resistance. It is an example of another boom and bust cycle in plant breeding with races virulent to Yr26(V26 races) now being the majority race group in the Chinese Pst population. We have attempted to present our story in a historical and personal context demonstrating research inputs from different national and international groups, as well as some significant contemporary side issues. It covers the period from the late 1980 s to 2017, during which significant rapid advances in the molecular biology of host: pathogen genetics occurred. We attempt to describe both successes and drawbacks in our work.

Drought Impacts on Vegetation Indices and Productivity of Terrestrial Ecosystems in Southwestern China During 2001–2012

Drought, as a recurring extreme climate event, affects the structure, function, and process of terrestrial ecosystems. Despite the increasing occurrence and intensity of the drought in the past decade in Southwestern China, the impacts of continuous drought events on vegetation in this region remain unclear. During 2001–2012, Southwestern China experienced the severe drought events from 2009 to 2011. Our aim is to characterize drought conditions in the Southwestern China and explore the impacts on the vegetation condition and terrestrial ecosystem productivity. The Standardized Precipitation Index(SPI) was used to characterize drought area and intensity and a light-use efficiency model was used to explore the effect of drought on the terrestrial ecosystem productivity with Moderate Resolution Imaging Spectrometer(MODIS) data. The SPI captured the major drought events in Southwestern China during the study period, indicated that the 12-year period of this study included both ‘normal' precipitation years and two severe drought events in 2009–2010 and 2011. Results showed that vegetation greenness(Normalized Difference Vegetation Index, NDVI and Enhanced Vegetation Index, EVI) both declined in 2009/2010 drought, but the 2011 drought resulted in less declines of vegetation greenness and productivity due to shorten drought duration and rising temperature. Meanwhile, it was about 5 months lapse between drought events and maximum declines in vegetation greenness for 2009/2010 drought events. In addition, forest, grassland and cropland revealed significant different ecosystem responses to drought. It indicated that grassland showed an early sensitivity to drought, while cropland was the most sensitive to water deficit and forest was more resilient to drought. This study suggests that it is necessary to detect the difference responses of ecosystem to drought in a regional area with satellite data and ecosystem model.

氩激光光凝联合巩膜条嵌植术治疗新生血管性青光眼

新生血管性青光眼(N.V.G.)见于许多眼病,最常见于视网膜静脉阻塞和糖尿病性眼底病变。N.V.G.对患眼威胁甚大,常因眼压不能控制而导致患眼剧痛,视力丧失,最后不得不摘除眼球。一般抗青光眼手术又恐眼内出血。我院用氩激光光凝联合巩膜条嵌植术,治疗六例N.V.G,取得了较好的效果,现报告如下。

Mineralization and Transformation of Nitrogen Derived from Plant Materials in Soils over 10 Years

Results of a 10-year decomposition experiment indicated that the annual mineralization rate of organic N in newly-formed humus varied with the type of original plant materials and the water regimes for decomposition, ranging from 0.028 to 0.074. The mineralization rate under waterlogged conditions was higher than that under upland conditions. The proportion of α-amino acid N in humus newly-formed under waterlogged conditions was slightly higher than that under upland conditions. It decreased gradually with time, while the proportion of nonhydrolyzable N showed no consistent trend, irrespective of the water regimes for decomposition. The distribution of amino acids in humus newly- formed from different plant materials under various water regimes was quite similar with that in original plant materials, and only minor differences could be found among them. For example, in comparison to original plant materials, the newly-formed humus contained higher proportions of isoleucine, cystine, γ-amino-butync acid and ornithine, and lower proportions of phenylalanine and proline. Moreover the proportion of phenylalanine was higher in the humus newly-formed under waterlogged conditions than that under upland conditions.