世界耕地面积减少,高效、超高效农药品种相继问世,致使农药产量、销售额增长趋缓,部分年份甚至出现负增长。90年代,农药销售额基本稳定在270～300亿美元。此外,农药中新结构化合物的研究、开发和登记的费用与时间明显增加。农药需求趋于饱和,有效成分用量逐年降低,市场竞争加剧,新品种开发风险剧烈攀升,这些因素导致农药工业利润连年下 The world has reduced the amount of arable land, and varieties of highly efficient and ultra-high-efficiency pesticides have emerged one after another. As a result, the production of pesticides and sales growth have slowed down, and even some years have seen negative growth. In the 1990s, pesticide sales were basically stable at between 270 and 30 billion U.S. dollars. In addition, the cost and time for the research, development, and registration of new structural compounds in pesticides has increased significantly. The demand for pesticides tends to be saturated, the amount of active ingredients has been declining year by year, market competition has intensified, and the risk of new species development has increased dramatically. These factors have led to the profit of pesticide industry under successive years.