英语论文网

chnology and other high-techs, the industrialization of agricultural science and technology should also be advanced. Regional development, particularly of the western and central regions, should be stressed, and agricultural modernization should be first realized in the east. At present, transferring the technologies to the west brings a historic opportunity to western areas, which have great potentials to absorb these technologies. The schedule and layout of such projects should be arranged differently. Some items, such as the breeding of new varieties of animals and plants, may yield fast and major results due to China’s biological diversity and regional extensiveness. II. With the help of increasing national strength a revolutionary reform in the application of science and technology will be launched to make comprehensive use of science and technology and restructure the agricultural system centering on industrial upgrading. The change of agricultural mechanism will help tap the huge potentials of the agriculture with the same amount of resources by playing the role of transferring and substituting science and technology in a bid to achieve the same result with half work. This is where the hope of our agriculture lies. (1) Transferring the traditional extensive operation mechanism to intensive operation mechanism. The utility rate of chemical fertilizer is only 30-40% in China. About 30 million tons of fertilizer are wasted a year (equivalent to one-third of the production capability). The irrigation water use rate is only 30-40% a year. Four times of the effective water supply from Yellow River are wasted each year. China’s high-yield fields only make up for a quarter of the total. There is a great gap among the levels of agricultural development in the east, middle and west. All these are the sources of potentials. If the “precise agriculture” is adopted to make our agriculture transfer towards knowledge-intensive, technology-intensive and resource-saving agriculture and realize fundamental change in mechanism, these items alone will meet the basic need of new agricultural science and technology revolution and new round of fast growth of agriculture. (2) Transferring the traditional grain development mechanism to macro food development mechanism. Considering the fact that there is a rich variety of food resources and a large population, we can make use of the new food resources to create new food varieties. The massive role of revolution will be hard to estimate. (3) Transferring the traditional dualistic structure of planting to threefold structure. The structure of “grain crops – economic crops’’ will be changed to “grain crops – fodder crops – economic crops”. This is an important way to tap the potentials of fodder and increase the output of high-quality fodder. There has been a great waste of fodder in China. Due to irrational makeup of nutrition elements, about a quarter of fodder for poultry will be lost. If the threefold structure will be adopted, the fodder ind