城郊实施无公害蔬菜生产经验浅谈

城郊由于优越的地理位置,成为广大菜农种植蔬菜的首选之地。据统计,我县城郊蔬菜常年复种面积达800hm^2,占全县蔬菜总面积的20％。为了满足广大消费者的需求,加快无公害蔬菜的发展,使蔬菜产业走上健康发展的轨道,达到增产、增效、安全的目标,我们于2004年1月开始,在城北东（西）青大塘流域、双庙水库下游建立了千亩城郊无公害蔬菜生产基地。通过一年的实施,取得了明显的成效。     

十堰市蔬菜生产现状及发展对策

十堰市位于湖北省西北部,汉水中上游,南水北调中线工程核心水源区。建市以来,市委、市政府高度重视蔬菜产业发展,确立了"城郊土地以菜为主,城郊农民以菜为业,城郊政府以菜为责"的指导思想。"十二五"时期,抢抓机遇,启动了十堰市历史上最大规模的蔬菜基地建设工程——南水北调中线工程新建蔬菜基地项目,全市新增了一批蔬菜基地,扩大了生产面积,稳定了市场供应,增加了农民收入,推动了蔬菜产业的发展。在推进产业发展的过程中,也出现了一些新情况、新问题,亟待解决。     

北京市蔬菜产业供需分析及发展战略建议

蔬菜是重要的农产品及人民生活的必需品。北京市蔬菜产业不仅保障了首都民生,而且是首都城郊农业经济中的优势产业,更是全国蔬菜产业的重要终端和流转地。近10年,北京市人口逐年增加,蔬菜消费总量也持续提升,但当地蔬菜产量却越来越少。为促进北京市蔬菜产业及农业经济的良性健康发展,从消费、生产、流通等角度对北京市蔬菜产业进行了分析,并提出了针对性的发展建议,以期为蔬菜生产经营主体以及相关政府部门提供决策支撑。     

江北区洁净蔬菜生产的探索与创新

近几年来,江北区在洁净蔬菜也就是无污染蔬菜生产上,一方面按速生型、高品位、高效益的城郊布局提升蔬菜产业水平和市场竞争力,另一方面积极发展洁净蔬菜生产技术,强化上市蔬菜监管力     

城郊农户对无公害蔬菜的认知及生产行为分析

蔬菜的质量安全问题已经日益成为人们关注的热点问题,而农户对无公害蔬菜的认知及安全生产行为又是保证蔬菜质量安全最为关键的影响因素。现以调查的数据为基础,考察了城郊农户对无公害蔬菜的认知水平,并利用Logistic回归模型分析了影响城郊农户无公害蔬菜生产行为的主要因素。结果表明:城郊农户的收入水平、文化水平、对无公害蔬菜的认知水平对城郊农户在生产蔬菜时是否注重安全无公害有显著影响,以期促进城郊无公害蔬菜生产的发展,政府应努力提高农民科技文化素质、普及无公害蔬菜生产技术和法律知识、推进城郊农户蔬菜产销的组织化发展。     

宜昌市夷陵区柑橘产业发展历史回顾

柑橘在宜昌市夷陵区栽培历史悠久,柑橘产业不断发展壮大。本文对夷陵区柑橘产业发展进行了简要回顾,从发展历程、栽培技术、产后处理与营销等方面进行了总结。     

宜昌日光温室小番茄周年生产栽培技术规程

以农业供给侧改革和绿色生态可持续发展为导向,以城郊蔬菜产业融合发展为目标,打破传统思维定式,研究探索和总结了宜昌日光温室小番茄周年生产技术,为相似地区日光温室蔬菜生产提供参考。     

广西城郊型蔬菜产业发展现状与对策

城郊型蔬菜是蔬菜产业的重要组成部分,担负着满足城郊人民日常蔬菜消费需求、确保蔬菜产品质量安全的重要责任,在农业生产中占有重要的地位。通过综合分析广西城郊型蔬菜产业的现状和存在问题,提出促进广西城郊型蔬菜产业健康、高效、可持续发展的对策,具有积极意义。     

武陵山区城郊蔬菜发展现状、问题及对策——以湖北恩施自治州为例

以湖北省恩施州为例,较系统分析了武陵山区城郊蔬菜发展现状和问题,提出了科学规划布局、调整和优化品种结构、加快基地建设、扶持培育龙头、加强科技服务、注重市场监管、加大产业发展投入等相应对策,供各级蔬菜部门研究参考。     

新野县蔬菜产业发展存在的问题及对策

1.　产业现状　　　　近年来,新野县按照县委、县政府确定的大力发展蔬菜产业的总要求和基本工作思路,　狠抓了各项工作落实,蔬菜产业保持了良好的发展势头,取得了明显的成效,截止目前,　全县蔬菜纯播面积可达2.5 万hm2,蔬菜总产量15 亿kg,总产值为13亿元。设施蔬菜总面积0.5万hm2,占全县蔬菜面积的20%,露地蔬菜面积2 万hm2,占全县蔬菜总面积80%,其中:主导产品:土豆0.3 万hm2,甘兰0.3 万hm2,洋葱0.1 万hm2。现已形成了六大主导产品生产基地。一是以城郊、上港、五星、溧河、新甸铺等乡镇为主的精细菜生长基地。二是以城郊、上港、五星、溧河…     

我国无籽西瓜产业发展状况与对策

对全国无籽西瓜科研与生产协作组调研与多年的实地考察,全面论述了我国无籽西瓜产业发展现状、产业布局特点及科研取得的成就,着重剖析了我国无籽西瓜产业在发展中的成绩和问题,并对我国未来无籽西瓜产业的发展和科研生产协作提出了具体建议。     

我国籽用西瓜生产与研究进展

在回顾自20世纪80年代起我国籽用西瓜生产阶段性特点和科研工作的主要成就的基础上,指出当前我国籽瓜生产中存在的品种更新缓慢、病害控制困难、综合利用不足等问题,并从产品综合利用、技术简约化、品种多样化、病虫害控制、科技协同创新等方面对籽瓜产业未来的发展提出了看法和建议。     

Research progress and important scientific issues of organ fibrosis

Organ fibrosis is a common pathogenetic change of parenchymal organs under chronic conditions, characterized by increased fibrous connective tissues and reduced parenchymal cells. The essence of renal fibrosis is the "repair of scars" after renal tissue damage. It involves a loss of renal parenchyma cells, activation of myofibroblasts, deposition of extracellular matrix, imbalance of metabolism and abnormal interactions with organs. Hepatic fibrosis is a kind of repair response induced by various chronic hepatic diseases, including viral hepatitis and metabolic liver disease, and it is the common pathological basis of end-stage hepatic disease. Pulmonary fibrosis is a progressive and fatal inflammatory interstitial lung disease, characterized by inflammatory destruction and extracellular matrix deposition. Myocardial fibrosis is a process of pathological repair after a variety of injuries caused by hypertension, hypertrophic cardiomyopathy, viral cardiomyopathy, valve disorders, myocardial ischemia, diabetes, obesity and other metabolic abnormalities. Organ fibrosis indicates some common pathogenesis, but the exact mechanisms differ from organs and still need further investigation to identify biomarkers for early diagnosis and to devise drugs specifically for fibrosis. This article comprehensively summarizes the recent developments in organ fibrosis over the last 3 years, including underlying mechanisms and urgent scientific issues remained.     

植物激素在香椿芽菜生产中作用规律及应用

论述了香椿芽菜的内源激素功能、代谢规律，阐述了外源激素在香椿生产中的运用规律．并对香椿芽菜生产中外源激素的合理使用及代谢与营养进行了探讨、展望。     

植物激素在香椿芽菜生产中作用规律及应用

论述了香椿芽菜的内源激素功能、代谢规律,阐述了外源激素在香椿生产中的运用规律,并对香椿芽菜生产中外源激素的合理使用及代谢与营养进行了探讨、展望.     

Reviewing eight years of Urban Forestry & Urban Greening: Taking stock, looking ahead

Since its launch in 2002, the journal Urban Forestry & Urban Greening (UFUG) has welcomed research from a range of disciplines and perspectives, with the aim of enlarging the body of knowledge on topics related to use, planning, design, values, and establishment of urban and peri-urban woody and non-woody vegetation. Here, we present a review of all scientific contributions published in the journal's first eight volumes (159 in all), and provide suggestions for improving the future content of UFUG. A framework for review was developed based on the journal's Aims and Scope, which set out the journal's ambitions related to, e.g. scientific diversity and international scope. The journal's achievements until now were assessed by analysing all scientific contributions for type of paper, type of green space, research theme, type of science, research method(s), and nationality of first author.Our review shows that the large majority of the contributions have been research papers. Regarding type of green space studied or considered, the overall green structure, woodland, as well as trees have been well covered, with parks having been studied much less. When looking at research themes, UFUG's envisaged variety of topics is evident. The physicality of green space, green space management, and the experience of green space have been given most attention, with less attention for valuation and governance aspects. Most UFUG contributions have been rooted in the social or natural sciences, with about one fifth of all papers involving more than one discipline, and the humanities being almost absent. Scientific diversity can also be seen from the wide range of research methods applied. The journal lives up to its international scope, with a large number of countries present. However, most first authors have been based in Europe and North America, with the USA and Scandinavia being particularly dominant.For the further development of the fields of urban forestry and urban greening, it is important that UFUG helps foster scientific debate and advancement. This will require greater focus on review papers, meta-studies, short communications, and on theoretical and methodological issues in general. Thematically, several relevant topics within urban forestry and urban greening, such as organisational aspects of green space management, could be given more attention. Also, normative issues such as the common understanding of ‘green’ as something inherently ‘good’ need to be addressed more critically.     

四川辣椒

本文对四川辣椒在蔬菜中的位置、四川辣椒的历史、辣椒的生产和消费、管理和推广以及四川辣椒科研五个方面作了介绍。以便全国认识四川辣椒,了解四川辣椒,达到相互了解、相互学习的目的。     

日光温室和露地甜樱桃红艳秋季枝叶中氮代谢的比较

以日光温室和露地栽培的6年生槽栽甜樱桃红艳植株为试材,对秋季枝叶中全氮、总氨基酸、可溶性蛋白质、谷丙转氨酶、谷氨酰胺合成酶、硝酸还原酶的变化动态进行了测定。结果表明,温室条件下叶片中的氮向枝中运转的量少于露地;长枝枝皮、短枝中的可溶性蛋白质减少,而长枝木质中可溶性蛋白质增加很多;叶中可溶性蛋白质高于露地,而且叶中的可溶性蛋白质在整个秋季都维持在相当高的水平。秋季枝中总氨基酸的变化趋势比较复杂,而叶中总氨基酸的变化趋势则很有规律,都有增加的趋势。秋季叶中谷丙转氨酶、谷氨酰胺合成酶、硝酸还原酶的活性在整个秋季都没有急剧减少,有时还有增加,这表明叶片中的氮代谢一直在进行,并没有随叶片的衰老而减弱。     

果树种质资源离体保存研究进展

综述了国内外果树种质离体保存方面的研究进展,简单介绍了种子保存,常规的细胞、组织和器官保存方法。超低温保存是一项长期稳定保存种质的方法,能减慢细胞代谢和完全抑制生长,概述了超低温保存的原理、技术要点和主要优点,以及影响超低温保存的因素:包括植物材料的性质、预处理、冰冻保护剂种类、降温方法、解冻方法以及解冻后处理等,并对今后果树种质保存提出了一些建议。     

早春大棚厚皮甜瓜品种比较试验

通过采用湖北省普遍采用的大棚爬地栽培方式,对12个厚皮甜瓜品种进行品种比较试验。结果表明,银蜜子、蜜世界、状元、红妃、金帝等品种在品质、熟性、抗病性及产量等方面的综合表现较好,适合湖北省早春大棚栽培。