利用高分子复配材料对氮肥尿素、碳酸氢铵进行复合改性后,采用不同施用方式,比较改性氮肥对单季晚稻武育粳12的生物学特性和产量的影响。结果表明:不同改性化肥对水稻经济性状有一定的影响,化肥施用量与产量关系密切,氮肥施用量增加可以明显提高水稻产量,但是高分子复配材料复合改性的尿素和碳酸氢铵,其氮肥利用率明显提高。 After compound modification of nitrogenous urea and ammonium bicarbonate by polymer composite materials, different application modes were used to compare the effects of modified nitrogen fertilizer on the biological characteristics and yield of single-cropping late rice Wuyujing 12. The results showed that different modified fertilizers had a certain impact on the economic traits of rice, and the application rate of chemical fertilizers was closely related to the yield. The increase of nitrogen fertilizer application could obviously increase the yield of rice. However, urea and ammonium bicarbonate modified by polymer composite materials, Its nitrogen fertilizer utilization rate increased significantly.