Research On Extension Of Pollution-free Vegetable Production In Tianjin

The safety of agricultural products has been paid wide attention, and its development has been a long time. In the foreign countries, the development of organic agriculture has got many achievements and wide effects. In China, after the beginning of the extension of the green food, the green food production had been developed in many areas and in many kinds of food. Now, the plan of the pollution-free agricultural products extension has been advanced in China, naturally, the pollution-free vegetables, as the extension emphasis, has made considerable progress, but, there are still many problems.The extension of pollution-free vegetables production in Tianjin develops rapidly, and the problems existed in the extension process are of certain universal significance. In the dissertation, the technical problems in the pollution-free vegetable production are analyzed, the production and sale enterprises of pollution-free vegetables in Tianjin are investigated, and the distribution in different districts and counties, the scale of the enterprise, and the management strategies of enterprises are also analyzed. Meanwhile, the differences of the production costs and circulation channels between the pollution-free vegetables and general vegetables in the production and circulation process are compared and analyzed. Finally, the differences of the cost between the pollution-free vegetables and genera] vegetables, and their effects on the planting are compared.According to the above problems, it is put forward some suggestions as below. For the extension staff, the reasonable technical plans should be made when carrying on the program of pollution-free vegetable production. For each district or county, its own advantages should be brought into full play, and the cooperation should be strengthened. For the enterprises of the pollution-free vegetable production, the cooperation with every department should be strengthened. At the same time, according to the price changes of the vegetables, the enterprises should draw up the reasonable planting structure and proportion of the vegetables.