生姜优质高产栽培技术

生姜以其地下根状茎供食用，可生食、炒食，或加工成多种食品，有菜中之祖的称号。含多种营养成分，除含有碳水化合物、蛋白质、多种维生素及矿物质外，还含有姜辣素等。生姜是集调味品，加工食品原料，药用为一体的多用途蔬菜，经济效益较高。现将生姜优质高产栽培技术介绍如下。     

湖北省城市化与经济发展协调度的时空特征分析

在阐述城市化与经济发展协调理论的基础上,建立了城市化综合水平指数与经济发展综合水平指数之间的协调度模型,对改革开放以来湖北省城市化与经济发展协调度的时空特征进行了分析。结果表明:①改革开放后,湖北省城市化与经济发展大致经历了2个明显的阶段:1978～1993年为不协调发展阶段,协调度值基本为负;1994～2004年为基本协调阶段,协调度值为正。②湖北省城市化与经济发展协调度的空间差异性明显,东部以武汉市为中心的小部分地区由于优越的地理区位和良好的经济基础,协调度值基本为正,城市化与经济发展存在着较高程度的协调性;以神农架为中心的鄂西山区由于经济发展处于起步阶段,协调度值也较高,但表现出较低层次的协调性;而其他广大地区的协调性较差。     

数据库可视化技术在统计数据管理领域中的应用

针对统计数据管理领域中对统计数据进行数据库可视化的需要，讨论了利用Mapinfo公司的MapX组件实现统计数据库与地理图形结合的思路与方法。介绍了数据库可视化的概念和MapX组件的模型结构，分析讨论了使用Mapx组件实现数据库可视化的方法。利用数据库可视化技术的图形化优势，使得统计数据的管理更加直观、方便，解决了传统的基于数据库的MIS(管理信息系统，Management Information System)系统在管理统计数据过程中存在的不直观、界面枯燥等问题。     

6个栓皮栎种源种子形态及其幼苗生长的比较

[Objective]To compare the differences of seed morphological characters among provinces of Quercus variabilis Bl.,and explore the adaptive growth status of seedlings growing in the central distribution area. [Method]The seeds of 6 Q. variabilis provenances from six provinceswerecollected, and the seedlings were cultivated and transplanted to experimental field in the centre of natural distribution range (Wuhan Jiufeng National Forest Park), then the seed morphology and one-year seedling growth traitswere surveyed. [Result](1)There were significantor extremely significantdifferences among provenances in seed length, seed width, seed length/width ratio and 100-seed mass, the order of seed length among provenances was Beijing Provenance (22.28 mm),Hubei Provenance (22.10 mm), He'nan Provenance (20.80 mm), Shaanxi Provenance (19.57 mm), Yunnan Provenance (18.93 mm)and Liaoning Provenance (18.81 mm), the seed width of Beijing Provenance (19.71 mm) and Hubei Provenance (19.16 mm) was higher than that of the others, the seed length/width ratio of He'nan Provenance (1.38) was extremely significantly higher than that of the others; (2)There were significant or extremely significant differences among provenances in seedling height, ground diameter, leaf number, branching number and seedling height/ground diameter, the Beijing Provenance and Hubei Provenance were better in seedling height and leaf number, which were respectively 19.54 cm and 20.26 cm, 8.32 leaves and 9.50 leaves; (3)A decreasing trend with time for seedling growth traits among provenances was found; (4)There was a positive relationship between seed morphological characters and seedling growth traits except seed length/width ratio; the leaf number was significantly related to ground diameter and branching number and the seedling height and leaf number were closely related to the seed morphological characters; (5)It showed a decreasing trend with the growth time in the relationship between seedling growth traits and 100-seed mass. [Conclusion]The seedlings of Beijing Provenance and Hubei Provenance grew better in the experimental field which might be related to their larger seed mass, and the Yunnan Provenance in the south margin and the Liaoning Provenance in the north margin of distribution area of Q. variabilis grew weaker than the provenances in the centre of distribution area.With the effect of climate change, provenances in the margin of distribution area may lose in the community competition in the seedling stage if it cannot take advantage of its dispersal and settlement and affected by the disadvantage of growth and competition, so that the distribution and population renewal would surely be affected.     

四种大孔树脂对大黄总蒽醌吸附量的研究

目的:研究四种大孔树脂对大黄总蒽醌的吸附。比较4种不同大孔树脂对大黄总蒽醌的吸附性;以大黄总蒽醌中的大黄素为参考指标,对大孔树脂吸附大黄总蒽醌的工艺进行筛选。结果:D-301大孔树脂对大黄总蒽醌的吸附量最大,吸附量为2.793mg/g,吸附率为72.56%。结论:D-301树脂对大黄总蒽醌的吸附性能最佳,为大黄有效成分的分离提供依据。     

山区羊舍“圈中圈”设计及应用效果

为探索山区羔羊保育技术,提高羔羊成活率和增重效果,笔者通过改进圈舍设计,加强饲养管理,开展了"圈中圈"羔羊保育应用效果观察试验。结果表明,试验组羔羊的断奶(120d)成活率为97.78%,比对照组的断奶成活率(68.89%)提高了41.94%;试验组羔羊的日增重为96.2 g,比对照组(71g)提高了35.49%,效果显著。     

茄子砧木新品种——茄砧21号

<正>茄砧21号系广西大学、香港中文大学深圳研究院、南宁市桂福园农业有限公司选育。该品种母本是从日本引进的茄子砧木种质自交分离选育出的自交系,父本是栽培种圆茄的优良单株自交选育而成的自交系。该品种主要用作砧木,可在广西各地种植。1.特征特性。中迟熟,春季播种至始花期85~90天,播种至果实老熟期120~130天,开花至果实老熟期60~65天,露地全生育期200~220天。植株长势中等偏强,高120~150厘米,株型较紧凑。茎叶着生短茸毛,     

猪丹毒病的防治经验

<正>伴随夏季温度升高,笔者接诊了几例猪丹毒病,而该病2013年夏季曾在彭泽县流行了近3个月,给许多养殖场(户)造成了较大的经济损失。为谨防猪丹毒病的再次大面积发生,笔者总结此病的诊治经验和体会,以供借鉴。1发病原因此病多发生于防疫条件不好、消毒不严、圈舍肮脏潮湿、饮水污染,而且没有做药物保健的中小猪场,伴随着夏季高温、阴雨骤变、猪只转移、突然更换日粮等应激条件极易发生。     

夏季池塘中几种常见藻类对鱼类的危害及防治

随着水产养殖事业的迅速发展,颗粒饲料的大量使用,养殖密度的大幅度提高,池塘水体的富营养化加剧,到了夏季,水体藻类大量繁殖,往往产生大量的有害藻类,养殖水体     

‘唐莓1号’高产栽培关键技术研究

本文研究了在冬季日光温室栽培条件下,草莓新品种‘唐莓1号高产栽培关键技术。主要从育苗方式、栽培密度、平衡施肥、预防和减少畸形果发生技术等方面试验,结果表明:采取营养钵育苗和假植育苗方式可以提高草莓前期产量;种植适宜密度为9000~10000株/亩;采用滴灌法进行平衡施肥,铺地膜前,追施氮磷钾比例为(1∶1∶0.5)的复合肥,用量为10kg/667m2,开花前、第一、二层采收初期、采收高峰期,分别间隔20天追肥5~6次,尿素和硫酸钾或磷酸二氢钾配合施用,总用量为10kg/667m2;采用放蜂方法可以预防和减少畸形果发生,促进设施草莓优质高产。