探讨了氢醌对土壤生物学和生物化学性状的影响以及在降低肥料氮对环境污染中的作用。试验结果表明,氢醌(10-100ppm)对土壤微生物数量组成、土壤中5种与碳、氮、磷转化有关的酶活性影响不明显;适宜剂量的氢醌可有效地降低尿素氮的挥发损失率。本文从另一方面论证了在农业生产中施用含氢醌尿素的安全性。 The effects of hydroquinone on soil biological and biochemical characters and the role of reducing fertilizer nitrogen in environmental pollution were discussed. The results showed that hydroquinone (10-100 ppm) had no obvious effect on the quantity and composition of soil microbes and the activities of five enzymes related to the transformation of carbon, nitrogen and phosphorus in soil. The appropriate dosage of hydroquinone could effectively reduce the volatilization loss of urea nitrogen rate. On the other hand, this article demonstrates the safety of using hydroquinone-containing urea in agricultural production.