【摘要】 近 2 0年来 ,随着国内市场经济的发展 ,种植业结构的调整 ,我国化肥使用的投向也发生了明显的变化。在经济作物上化肥投入的比重呈逐年上升的趋势 ,其施肥面积已由 1980年的 2 2 .0 %提高到 1998年的 31.8% ,施肥量占 43.0 % ,这还不包括林业、草业和养殖业施肥。根据这一发展趋势 ,有必要对我国化肥使用的前景进行重新评价。提出如果 2 0 30年我国人口能控制在 16亿左右 ,则化肥需求量上限在 70 0 0万吨更多还原

【Abstract】 With the development of market economy and the adjustment of agriculture mix, a great change has been made in China’s fertilizer distribution. Fertilizer input on economy crops has increased in recent 2 decades; with fertilizered areas increased to 31.8%(1998) from 22.0%(1980), which excluded the areas for forest, grass and fisheries. According to this trend, it is predicted that China’s top fertilizer consumption will be 70Mt/a if its population is controlled under 1.6 billion in 2030.更多还原