The System of Rice Intensification (SRI): a challenge for science,and an opportunity for farmer empowerment towards sustainable agriculture

Increasing demand for cereals produced from limited natural resources stimulated the Green Revolution in grain crops like wheat and rice. But the gap between potential and actual production continues. Concerns about sustainability, and the social and technical shortcomings of the Green Revolution, have triggered a number of alternative crop production strategies. One, in particular, the so-called System of Rice Intensification (SRI), is attracting attention by governments, civil society organizations and farmers in Asia and elsewhere.     

农民专业合作经济组织发展问题探析

发展农民专业合作经济组织是解决农民增收问题最有效的途径。本文在借鉴国内外农民合作经济组织发展情况的基础上,分析了目前影响我国农民专业合作经济组织存在的普遍问题,并有针对性地提出了建议和对策。     

Land Tenure and the Adoption of Conservation Practices

We use a logit adoption model with data on 941 U.S. corn producers from the 1996 Agricultural Resource Management Study to analyze the influence of land tenure on the adoption of conservation practices. We extend previous analyses by distinguishing renters according to lease type and by distinguishing practices according to the timing of costs and returns. We find that cash-renters are less likely than owner-operators to use conservation tillage, but share-renters are not. Both cash-renters and share-renters are less likely than owner-operators to adopt practices that provide benefits only over the longer term (grassed waterways, stripcropping, and contour farming).     

玉米干法加工啤酒专用粉的工艺研究

我国每年生产4000多万吨啤酒，消耗300万吨以上大米作为糖化辅料，目前粮食安全已经成为世界性的难题。系统介绍了通过引进关键设备，用玉米干法加工生产啤酒专用玉米粉的工艺案例，并对采用该工艺生产过程中出现的问题进行了深入的研究，为科学利用玉米食品和提高其附加值开辟了一条新的途径。     

东周时期管子的经济思想

东周时期一向被认为是我国古代历史文明的光辉时代。由于当时社会大变革， 在政治思想领域出现了许多学派， 各自著书立说， 互相进行激烈争辨， 历史上称为百家争鸣。许多政治家的经济思想是很卓越的， 对后世影响很大。本文重点评述管子的经济思想     

An analysis of delayed formal and interlinked informal credit in agriculture

A model of interlinked credit-product contracts between small farmers and large farmers when the small farmer faces delay in getting formal credit and the large farmer does not, has been developed. The small farmer remains on the reservation income level, and his reservation income is inversely related to the length of the delay. However, this does not hamper the productivity of the small farmer. The large farmer extracts the surplus through the interlinked contract and this surplus is positively related to the length of the delay. Interlinkage and non-inter-linkage equilibria become identical if the small farmer gets the formal credit at the beginning of the crop cycle. Various subsidy policies worsen the distribution of formal credit.     

中国农民专业合作社金融支持研究——基于石家庄市的个案分析

近年来，在中央及地方政府的扶持倡导之下，中国农民专业合作社得到了迅速发展。但由于缺乏有效金融支持，中国农民专业合作社的持续发展受到很大制约。文章选取作为河北省省会的石家庄市的农民专业合作社进行个案研究，分析其金融支持不足的现状及成因，以点透面，为我国农民合作事业金融支持问题提供参考建议。     

长阳县发展旅游业与农民增收的关系研究

农民增收是新农村建设的一项重要任务,要从根本上解决农民增收问题,关键在于把农村剩余劳动力转移出来。在对湖北宜昌长阳土家族自治县的调研中发现,旅游业可以有效地实现劳动力的转移,走＂进厂不进城、离土不离乡＂的发展道路,使旅游业的发展与农民增收相得益彰。     

对于优秀工人、农民走进公务员考场的几点思考

公务员考试一直是人们关注的焦点,而今年最大亮点是将探索从优秀工人、农民等生产一线中考录公务员的办法。本文从优秀工人、农民进入公务员考场的现象出发,分析招录一线工人、农民进入公务员队伍的意义,探索实施过程中会遇到的难点和问题,提出相关的对策,以完善我国的公务员考试录用制度。     

基于LDA主题模型的专利文本分析应用研究

为了解决运用传统的专利文本分析方法中出现的分类粗糙、科学性不强等问题,提出使用基于Latent Dirichlet Allocation(LDA)主题模型的专利文本分析方法。以我国转基因玉米育种领域专利文本为研究对象,对专利文本主题进行划分。通过实验表明LDA主题模型对专利文本的划分和热门领域的分类准确、有效。并得出结论:对专利文本使用LDA主题模型建模可以实现对专利文本的分类,可以实现对热门领域主题分类、子领域细分,并对未来发展态势给出意见。