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Stand on a base of upper study, this paper choose distribution map of agriculture and stock raising in seven different historical age as basic material, sum up ten agro-geology environmental factors into Loess plateau Area's AEG system, and cover all these factor's component parts map on distribution draft of every period's agricultural and pastrol, then measure the occupying proportion, bring results into fomula of factor information entropy, finally, take average value of ten factor's information entropy in each period as its characteristical AEG system entropy value.

在以上研究的基础上,论文选择黄土高原地区七个历史时期的农牧业分布图作为基本资料,将该区的十个地质环境要素纳入农业环境地质系统中,将其类别分布图与上述农牧业分布图进行叠加量测,结果代入要素系统熵计算公式,求得了十个农业地质环境要素在各个历史时期中的系统熵,对每个历史时期的这十个熵值求算术平均值就获得了该历史时期黄土高原地区总的农业环境地质系统熵。

This paper described the main characteristics of these consortia, summarized some experiences from their management practice so as to provide some revelation for agricultural res...

本文描述了这些区域联合体的组织和结构,探讨了菲律宾国家农业研究系统在农业研究分极化管理方面的经验,期望能给我国的农业研究管理者提供一些借鉴或政策启示。

Water deficiency sensitive index; water production function; optimal irrigation schedule; dynamic planning model; non-linear model

农业科技,农业基础科学,农业数学缺水敏感指数;水分生产函数;灌溉制度优化;动态规划模型;非线性规划

Its value influences directly on the degree of agricultural mechanization and the operational benefit of agricultural machinery.

农业机器完好率是指农业机器的完好程度,它的高低直接影响农业机械化程度和农机作业效益。

In broad sense, back-nurture includes nurture, not only is which caused by nurture but also by the agricultural performances in the process of industrialization, involving the little departmentalization of agriculture in the whole national economy, the externality of agricultural output and its non-commodity output.

广义的反哺包含哺育,它不仅源于哺育,还源于工业化进程中的农业小部门化、农业产出的外部性以及农业的非商品性产出。

The Chinese new revolution of Agricultural Science and Technology is multiple goal green revolution, which is more complex than the double green revolution around the world.

阐述了以"双重绿色革命"为主要特征的世界农业科技革命的趋势,指出中国新的农业科技革命是超出世界农业科技革命目标的多重绿色革命。

By the economic analysis of the agricultural mechanization development effects in China, the paper does qualitative research into impacts of effect degree that different levels of agricultural mechanization have on the rural economy by means of edge effect analysis in regression model, and farther explanation about the impacts that agricultural mechanization have on the rural economy is indicated using the method of simulation of C-D production function model.

论文在我国农业机械化发展效应经济性分析的基础上,利用回归模型边际效应分析方法初步定量探讨了农业机械化发展水平对农村经济的作用程度影响,并运用C—D生产函数模型模拟方法对农业机械化对农村经济影响进行了进一步说明。

This paper, by an example of spark technology industry belt on vegetable towards north in Guangdong, indicates that encompassment agriculture industry chain and value chain is the key link of agricultural technology system innovation characterized with market direction, leading by government, the union of government, industrial and research institute; technical integration is the main method in the region agricultural technology development suitable for our country's national condition.

通过对广东省北运菜星火技术产业带的研究表明,围绕农业产业链和价值链的关键环节,推动以市场导向、政府主导、官产学结合为特征的农业技术体制创新,以技术集成为主要手段,是一条适合我国国情的区域农业技术发展道路。

With the separation of traditional agriculture from modern industry and service industry and the transference of peasant population, individual's affiliation with the endemicity of traditional agriculture society is weakened.

随着传统农业与现代工业、服务业的分离和农业人口的大迁移,个人与传统农业社会中的地方性的联系同时削弱,从原始社会集团中分化出来,"相对分离"的个人组成"原子化了的,高度分散的社会"

The journal publishes original scientific articles, reviews and short communications dealing with all aspects on production and health in plants and animals, as well as rural development, such as genetics, breeding, organic, biological agriculture and sustainable production systems, apiculture, aquaculture, forages and pastures, plant and animal diseases, pests and weeds, epizootiology, immunology, parasitology, physiology, reproduction, management and food technology, natural and genetic resources, agricultural economics, rural engineering and mechanization, soils, fertilization, irrigation and watering, etc.

杂志刊载原始科学文章,评论和短通讯,内容涉及植物和动物生产和健康,以及农村发展的所有方面,例如遗传学,育种,有机农业,生物学农业和可持续生产系统,养蜂,水产业,草料和牧场,植物和动物疾病,害虫和杂草,动物流行病学,免疫学,寄生虫学,生理学,繁殖,管理和食品技术,自然和遗传资源,农业经济,农村工程和机械化,土壤,施肥,灌溉和浇水等。

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