关键词: 有机肥, 有机肥, 培肥土壤, 提高产量, 可持续发展

Abstract: In order to solve the serious problem of the contradiction between population and food-growing, this paper analyzed the changes of cultivated land pressure in the Red Triangular Economic Circle based on the model of the per capita minimal area of cultivated land and the cultivated land pressure index. The result showed that the pressure of cultivated land was on the rise between 2000 and 2010 and two obvious peaks appeared each in 2003 and 2008. There remains were some tiny discrepancies of the changes among Shaoguan City, Ganzhou City and Chenzhou City. Because of the agricultural interior structure adjustment, the fall of the farmers’producing initiatives and the influences of meteorological disasters, the proportion of the area sown to grain, the re-cultivated index and the grain output were all drop, which cause the rise of the pressure index of cultivated land. Besides, the over-rapid population growth was another reason to that. Therefore, in order to keep down the development and make sure that the whole area’s sustainable development, we should: Firstly, control the population growth. Secondly, in order to improve the income level of food-growing and the farmers’planting initiative, the compensation mechanism of cultivated land protection should be put into effect. Thirdly, improving the farmland conditions so then the destructive power of natural calamities can be decreased. Fourthly, to rise the per unit yield, we should optimize the farmland structure and increase the re-cultivated index. Last but not the lease, we can increase the farmland’s quantity by exploiting untouched arable land resources.