Theory and Model of Agricultural Insurance Subsidy

The issue of agricultural insurance subsidy is discussed in this paper aiming to make it provided more rationally and sci- entifically. It is started with the connection between agricultural insurance and financial subsidy. It is really necessary and crucial to implement the financial insurance due to the bad operational performance, especially in the developing countries. But the sub- sidy should be provided more rationally because financial subsidy has lots of negative effects. A model in competitive insurance markets developed by Ahsan et al (1982) and a farmers' decision model are developed to solve the optimal subsidized rate. Finally, the equation is got to calculate it. But a quantitative subsidized rate is not made here because the calculation should be under some restricted conditions, which are always absent in the devel- oping countries. So the government should provide some subsidy for the ex ante research and preparation to get the scientific prob- ability and premium rate.

Land Use and Property Changes in Hungary and Poland after EU Accession

Land property in the post socialist countries was rebuilt in the beginning of the 1990s. The process went in different way in all of the post-socialist countries. The result of the privatization of agricultural land was a fragmented, direct or indirect smallholder ownership structure in most of the new member states of the EU. The land, partly or totally was given back to the owners and inheritors of land reforms following the war. It means that considerable proportion of the land is cultivated by tenants, the fragmented estate structure decreases the efficiency and the increasing rental fees further destroy the profitability and competitiveness of farming. Regarding to the competitiveness of agriculture, Poland showed a developing tendency after the accession, but Hungary suffers from serious problems. Applying descriptive statistics between the changes of land use and land ownership during the research relation analysis, emphasizing the effect in competitiveness of the land price and a land rent, the paper tries to identify the main differences and similarities in land use and property structure, and their effects on the agricultural competitiveness based on the FADN data base, since 2004-2007.

Study of Overseas Development and Construction of Sino- Russian Cooperation Agriculture Park of Jilin Province

Implement agricultural ＂going out＂ strategy, guide and promote agricultural enterprises＇ higher and wider participation in international agricultural division of labor and cooperation, foster transnational agricultural groups, which will help to speed up China＇s agricultural industrialization, internationalization and modernization, the promotion of domestic strategic adjustment of agricultural structure, the optimization and upgrading. Jilin Province shall make an integrated use of a variety of ways to strengthen the development strength of overseas market of agricultural resources and agricultural products, promote improved varieties, superior agricultural technology, equipment and agricultural products to ＂walk out＂, establish foreign grain, important industrial crop and fishery production base and independent logistics and trade system, and continuously improve the international competitiveness of China＇s agriculture. This thesis discusses the current research of overseas agriculture development and the major ways of the construction of Sino-Russian Cooperation Agriculture Park in Jilin Province. It also proposes the measures to accelerate the implementation of the development of Jilin Province Sino-Russian Cooperation Agriculture Park.

Discussion on China ＇s Agricultural Development during 2011-2015

During the 11th Five-year Plan period, China＇s agricultural productivity improved on all levels; the contribution rate of technologies to agriculture rose steadily, the agricultural service system was gradually restored and agricultural policy regimes were consummated. However, China＇s sustainable agricultural development faces severe tests such as agri-tech ＂short slabs＂ and poor collaborative operation. The 12＇h Five- year Plan period will bring both strategic opportunities and challenges. Brisker market demands and more agricultural inputs, a higher technical level and better policy regimes will drive development. On the other hand, agriculture will be confronted with more resource and environment constraints, fewer traditional comparative advantages and hidden hazards, etc. Over the next five years, China should stay its course to agricultural modernization based on its national conditions and the sustainable development concept and establish a ＂broad interpretation of grain security＂ to improve the productivity, risk- resistance capabilities and market competitiveness of its agricultural industry.

Invasive plant rhizome production and competitiveness vary based on neighbor identity

Aims Within-species genetic and phenotypic variation have well-known effects on evolutionary processes,but less is known about how within-species variation may influence community-level processes.Ecologically meaningful intraspecific variation might be particularly important in the context of anthropogenic impacts on natural systems,such as agriculture and species invasion,because human actions can cause strong selection pressures.Methods In a greenhouse study,we explored intraspecific(30 accessions)and ecotypic variation(representing agricultural and nonagricultural habitats)in biomass and rhizome production in response to inter-and intraspecific competition and soil fertility of Johnsongrass(Sorghum halepense),a widespread invasive species and agricultural weed.Important Findings Contrary to our expectations and previous results,we did not find variation in biomass production among Johnsongrass ecotypes at this early life stage.However,we did find that Johnsongrass biomass varied substantially depending on competitor identity,soil fertility treatments and among accessions.Rhizomes were 11%larger in the agricultural ecotype and up to 3-fold larger in fertilized treatment;while rhizome biomass increased by~50%when fertilized,but did not differ among ecotypes.Interestingly,in competition,Johnsongrass produced 32%less biomass and 20%less rhizome mass with a conspecific than when competing interspecifically with corn.Our results indicate species-specific competitive responses and changes in rhizome allocation in response to neighbor identity;suggesting the possibility of adaptation by Johnsongrass to shift allocation under competition.