共查询到20条相似文献，搜索用时 31 毫秒
1.
In India, more than 70% of the population lives in villages and agriculture is the main source of income. A study of the rural community in the Bellary District was undertaken to understand their socioeconomic status; the types, channels and sources of information used; and difficulties faced in utilization of the information. Findings show that the majority of the respondents are youth and have completed at least primary education. Only 10% can read and write English; they are unable to utilize information in languages other than Kannada, their mother tongue. Friends, neighbors, and elders serve as the major source of information; television, mobile phone, and radio are the preferred channels for agricultural information. Rural educated youth should be trained in the latest information technologies and encouraged to collect and disseminate need-based information; rural libraries, equipped with television and Internet connectivity, must impart information literacy skills. 相似文献
2.
《Journal Of Agricultural & Food Information》2013,14(2):83-90
ABSTRACT Texas Agricultural Extension Service (TAEX) has been experimenting with electronic information servers as an adjunct to traditional information distribution methods. Information servers may be easily established on inexpensive (< $1,500 US) computers running all free software. A brief analysis of present usage is presented, and cost savings documented. Some guidelines for on-line information providers are presented. Internet information servers allow access to a broader audience at lower cost than traditional distribution. 相似文献
3.
Kijsart Aonngernthayakorn Soparth Pongquan 《Journal Of Agricultural & Food Information》2017,18(1):25-43
This study investigated factors affecting the utilization of agricultural information among rice farmers in central Thailand. About 240 rice farmers in the Bang Pla Ma District of Suphanburi Province were surveyed and interviewed to describe how they utilize agricultural information. Respondents were divided into small, medium, and large rice farmers according to farm size. Small farmers had more access to information on farming practices and postharvesting activities, while large and medium farmers utilized more information on marketing, covering future market and farmgate prices. The multinomial logit model showed that length of farming experience, household labor size, distance to the Rice Research Center, and number of information sources, as well as access to the Internet, television, extension program, and relatives, significantly influence farmers’ utilization of agricultural information. 相似文献
4.
现代网络技术和多媒体技术的快速发展,极大地丰富了高职院校图书馆信息资源,同时也对图书馆信息资源建设提出了更高的要求。针对广东科贸职业学院图书馆信息资源建设实践中遇到的一些问题进行了初步探讨。 相似文献
5.
6.
Due to inadequate personnel, information communication technologies (ICTs) have become an attractive option for delivery of extension information. This study examined awareness and use of ICTs by farmers in Oyo State, Nigeria. A total of 192 farmers were interviewed. Results indicate that most farmers had no formal education and small farm holdings. Awareness of older ICTs like radio and television was more prevalent among farmers as compared with newer ICTs such as Internet and cable television. However, use of modern ICTs like mobile phones and cable television was greater than that for older technologies such as fax machines. Farmers were constrained in ICT use by prohibitive cost and service failure. The Nigerian government should encourage a liberal policy for affordable prices for modern ICT products, especially mobile telephones. 相似文献
7.
该回顾了Ｉｎｔｅｒｅｔ网络在国内的发展情况及其主要功能。认为，Ｉｎｔｅｒｎｅｔ网主要用于完成通讯任务及信息服务。 相似文献
8.
为提高水资源利用率和灌溉智能化管理的需要,设计了以无线传感器网络技术为核心的荔枝园节水灌溉控制系统,该系统的无线通信模块选择CC2530模块,传感器模块包括空气温湿度传感器DHT22,光照强度传感器GY-30,土壤水分含量传感器TDR-3以及一些外围电路,精确采集荔枝园温度、湿度、光照度和土壤含水率等多项环境信息,通过无线传感器网络、通用分组无线服务技术(General Packet Radio Service,GPRS)和互联网进行数据的传输,保证了传输的实时性和远程性,实现了对荔枝园环境的实时监控;同时,远程服务器和网站上都对荔枝园的土壤含水率的阈值进行了设定,当土壤含水率的值超过了阈值,服务器或者网站就会自动发送相关命令对相应的电磁阀进行控制,实现双向控制。分析、测试了系统的功耗和通信距离,在空旷地带,节点的双向有效通信距离达1 205 m,在荔枝园中双向有效通信距离达81.5 m。在传感器节点系统工作周期为30 min情况下,根据试验结果估算出,两节额定容量为3 000 m A·h的3.7 V锂电池串联可使传感器节点持续工作时间最大为500 d,可使电磁阀控制节点工作5 a以上。试验结果表明,该系统运行稳定,网络平均丢包率为3.87%,能够准确监测荔枝园信息采集和控制电磁阀工作,实现和控制荔枝园智能节水灌溉双向通信。 相似文献
9.
《Journal Of Agricultural & Food Information》2013,14(3):71-81
ABSTRACT Rural America has traditionally lagged behind urban areas in the delivery of information goods and services. Two major barriers to enhanced information access: distance and a limited number of information resources, can be negated by telecommunications networks such as the Internet. Using three common Internet telecommunications systems, the Cooperative Extension Service is examined as a developing resource of networked information for rural America. 相似文献
10.
Although tropical wetlands are rapidly being developed for the needed increase in rice (Oryza sativa L.) production, knowledge is still limited concerning the optimum soil and crop management practices. A study was thus carried out to evaluate the effects of different tillage systems on the growth and yield of paddy rice, grain yield response to N applications, and weed control. Five experiments were conducted for three consecutive seasons on hydromorphic soils (loamy and sandy loamy, mixed, isohyperthermic Aeric Tropaqualfs) at the International Institute of Tropical Agriculture, Ibadan, comparing the effects of zero tillage (without dry tillage and puddling) and conventional tillage (dry tillage and puddling) at two or more N levels. In two of the above experiments the effects of either two moisture regimens or chemical versus manual weed control were also evaluated.In four experiments there were no statistically significant differences in grain yield between zero-tillage plots sprayed with paraquat and conventional-tillage plots. Only in Experiment 2 did zero-tillage (with paraquat) plots give a significantly lower yield than conventional-tillage plots (5200 versus 5580 kg ha?1, respectively) but the difference could be explained by greater rat damage in the former. The highly significant response in grain yield to N applications in all five experiments was statistically similar under both tillage systems. The continuous flooding treatment (Experiment 1) gave better weed control and higher grain yield than the saturation moisture regime (6150 versus 5420 kg ha?1 grain yield). In zero-tillage plots where weeds were slashed before transplanting (Experiment 2), grain yield was lower and the weed growth greater than in zero-tillage and low N level. Satisfactory weed control was obtained with paraquat and continuous flooding. 相似文献
11.
根据信息营销的特点，利用网络进行信息营销是图书馆最具经济价值的营销模式，也是促进图书馆可持续发展的有力措施之一。 相似文献
12.
研究在农业信息化中确保重要农业信息在网上传输的安全性。利用有限域上的椭圆曲线可以实现公开密钥加密体制，并且在满足安全性要求的前提下可使用较短的密钥。信息隐藏将秘密消息隐藏在载体信息中，使得无法觉察出秘密消息的存在。利用24位BMP可以实现高效率信息隐藏。结合加密和信息隐藏技术，提出将重要农业信息先用椭圆曲线公钥体制加密，再将密文隐藏于BMP图像中在Internet上进行传输，实现了对重要农业信息传输的双重安全保护，确保了重要农业信息在网上传输的安全性。 相似文献
13.
互联网的发展使广大农业工作者利用Internet获取信息资源成为了可能。互联网上获取农业信息资源的主要方法：利用搜索引擎检索、利用数据库检索、登录虚拟图书馆、参加论坛、参与电子邮件群和QQ群、登录农业站点等。介绍了Internet上农业信息资源的获取方法,并列出了Internet上农业信息资源的主要站点。 相似文献
14.
物联网是一个集信息通信、数据交换、传感器技术与软件工程于一体的综合性产业,探讨和分析了物联网的结构体系与发展中遇到的安全问题。 相似文献
15.
网络信息检索课程不但要求其教学内容要从网络检索工具入手,为了适应教学内容,其教学环境以及教学手段也要同步改进,以利于教学的进行。为充分展示对于网络信息检索课程改革的研究成果,从课程设计以及基于Blog平台的教学优劣势进行了分析研究。 相似文献
16.
Katherine H. Cameron K. P. Somachandra Claire N. Curry Wade H. Jenner Shaun L. A. Hobbs 《Journal Of Agricultural & Food Information》2013,14(4):212-229
Delivering actionable, high-quality plant health knowledge to smallholder farmers and the extension workers who support them is a major challenge. Few farmers access information via the Internet and remote locations make them difficult to reach. The Plantwise program has been working with local partners to implement processes and delivery channels for reaching more farmers with the agricultural advice they need to grow more and lose less to pests. Responding to feedback, content types and formats have been improved, quality control and updating mechanisms have been implemented, and new tools have been developed to deliver information to all who need it. 相似文献
17.
基于Web数据的农业网络信息自动采集与分类系统 总被引：1，自引：2，他引：1
为了快速、高效地获取农业Web信息,解决信息孤岛和信息不对称的问题,重点研究了农业Web数据自动采集与抽取、基于SVM(support vector machine)的文本分类、物联网异构数据采集等技术,并采用统一建模语言(unified modeling language,UML)描述了农业网络信息自动采集与分类系统。该系统实现了农业网站、物联网数据的自动抓取和共享,为用户提供农业资讯、农产品市场行情、供求信息在线查询,环境数据实时监测和个性化信息服务等功能。应用结果表明,该系统对样本集网站的信息抓取准确率为98.2%,资讯分类准确率为92.5%,具有数据采集实时性强、用户参与度好、通用性高等特点,该系统为农业信息整合和服务提供参考。 相似文献
18.
网络农业信息资源共享与开发利用研究 总被引：10，自引：1，他引：9
自然资源与农业生产要素在利用中表现为消耗和占有,而农业信息资源具有明显的共享性,且可以与非信息生产要素结合加速农业生产力的发展。高效共享与深层开发是农业信息资源利用的核心。当前网络已成为农业信息资源的重要载体,研究网络环境下农业信息资源的高效共享与深层开发已成为一个重要课题。以网络环境下农产品供求信息资源为例,分析得出网络农业信息资源具有更新快、数据存储分散等特征,并指在共享与开发网络农业信息中存在的问题;最后利用Browser/Server结构和ActiveX组件等技术,给出了一种能克服问题,实现网络农业信息资源高效共享与深层开发利用的解决方案。 相似文献
19.
本文介绍了Intemet网上一些实用性农业信息资源及其检索方法,对一些主要的农业站点和信息资源进行了分析和概括。为获取和利用因特网上重要的和相关的文献信息资源提供了依据。 相似文献
20.
通过建立农业信息数据库系统,整合农口各类信息资源,进行数据统一化、数据标准化、数据规范化,充分利用现代技术手段,建设和完善信息基础设施,搭建网络平台,从而提高地方政府决策能力和效率,推动产业结构优化升级,提升国民经济整体素质和产业竞争力,服务国计民生。并利用Intemet与全国农业信息部门共享、与国际接轨,实现农业信息资源交流及其管理,提高信息共享和综合利用水平。 相似文献