中文摘要：

采用田间试验方法研究施用树脂包膜控释尿素（TSCU）和树脂加硫包膜控释尿素（PSCU）对玉米植株全氮含量、吸氮量、肥料氮素吸收效率、产量以及土壤耕层硝态氮含量的影响。结果表明，TSCU和PSCU处理吸氮量分别达到163．32kg·hm^-2和178．54kg·hm^-2，比施普通尿素（Pu）处理增加26．62奴·hm^-2和41．84kg．hm^-2，差异达显著水平；玉米产量比PU处理分别提高21．27％和33．36％；TSCU和PSCU处理的玉米氮素吸收效率比PU处理分别增加18．68％和27．47％；在玉米成熟后，控释肥处理耕层土壤硝态氮仍然高于普通尿素处理。在黑土生态条件下，与PU处理的玉米相比，TSCU和PSCU处理均有效提高了玉米的干物质量、吸氮量及产量，减少了环境污染，以PSCU处理控释效果最好。

英文摘要：

Field experiment was conducted to investigate the effects of TSCU and PSCU on the total N content, N up-take, N absorption rate, yield of maize plants, as well as soil NO3^--N content. The results showed that N up-take at mature maize in TSCU and PSCU treatments were 163.32 kg. hm^-2 and 178.54 kg. hm^-2 respectively, increased 26.62 kg. hm^-2 and 41.84 kg. hm^-2 respectively compared with PU treatment, a significant difference was observed between treatments. The yield of maize in TSCU and PSCU treatments increased 21.27% and 33.36% respectively compared with PU treatment. And N absorption rate increased 18.68% and 27.47% respectively. After the maize maturity, soil NO3^--N content in controlled-release N fertilizers treatments was still higher than that of PU treatment. Compared with PU treatment of maize that these two kinds of controlled release N fertilizers under the black soil ecological conditions, dry matter weight, N up-take and yield of maize were increased by TSCU and PSCU treatments, the environmental pollution was also reduced. The best controlled-release N fertilizer was PSCU.