【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 4 3 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。更多还原

【Abstract】 The orientation of chemical fertilizer input has taken a great change since 1980 in China, following the development of national marketing economic and the adjustment of agricultural plantation structure The proportion of chemical fertilizer input on cash crops increased year by year, accounting for 43 0% of the total fertilizer consumption in 1998 The fertilized area of cash crops increased from 22 0%in 1980 to 31 8% in 1998, which did not included the fertilizer consumption on other industries such as forest, pasture and aquaculture According to this trend of development, it is necessary to re\|envaluate the prospect of fertilizer consumption in the future更多还原