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氮肥是农业生产中施用最多的一种化学肥料,但它施入土壤后损失严重,利用率低,一般只有35%左右。因此减少氮肥损失,减少环境污染,提高氮肥利用率,是世界各国农业生产中一个急待解决的重要课题。国外从六十年代起开始研制氮肥增效剂,其中如西吡,美国在六十年代初开始研究,七十年代应用于大田
Nitrogen fertilizer is the most widely used chemical fertilizer in agricultural production. However, it is seriously damaged after being applied to the soil, and its utilization rate is low, generally only about 35%. Therefore, reducing the loss of nitrogenous fertilizer, reducing environmental pollution and increasing the utilization rate of nitrogen fertilizer is an urgent issue to be solved in the agricultural production of various countries in the world. Since the 1960s, foreign countries started to develop nitrogenous fertilizer synergists. Among them, such as ciprofibrate, the United States began to study in the early 1960s and applied to Daejeon in the 1970s