新型包膜控释尿素对水稻产量与氮肥利用率的影响  

Effects of new controlled-release coated urea on rice grain yield and nitrogen use efficiency

作　　者：陈贤友[1] 吴良欢[1,2] 李金先[3] 应金耀[3] 

机构地区：[1]教育部环境修复与生态健康重点实验室,浙江大学环境与资源学院,浙江杭州310029 [2]浙江省亚热带土壤与植物营养重点研究实验室,浙江大学环境与资源学院,浙江杭州310029 [3]浙江省杭州市萧山区农业局,浙江萧山311201

出　　处：《浙江农业学报》2010年第6期829-833,共5页Acta Agriculturae Zhejiangensis

基　　金：“十一五”国家科技支撑项目(2006BAD10B07,2008BADA4B03)

摘　　要：以晚粳稻‘秀水128’为供试水稻品种,在田间条件下,对金正大新型硫磺加树脂双层包膜控释尿素(SPCU)和树脂包膜控释尿素(PCU)对水稻产量及氮肥利用率的影响作了研究。结果表明:(1)与普通尿素PU70%(147 kg/hm2N)处理相比,等氮量一次性基施SPCU 70%处理产量为8 022.5 kg/hm2,显著提高5.26%;氮肥利用率为49.32%,显著提高38.42%;(2)与普通尿素PU100%(210 kg/hm2N)相比,一次性基施SPCU70%处理产量无显著差异;氮肥利用率显著提高33.69%;(3)相同施氮量下,SPCU产量与PCU无显著差异,但SPCU比PCU氮肥利用率显著增加。Using japonica variety XiuShui 128,field experiments were carried out to investigate the effects of sulfur-polyester resin-coated urea（SPCU）and polyester resin-coated urea（PCU）on rice grain yield and nitrogen use efficiency（NUE）.The results showed that：（1）compared to PU 70%（prilled urea）with N content at 147 kg·hm-2,the rice grain yields significantly increased by 5.26% with a single basal application of SPCU 70% under the same N rate which were 8 022.5 kg·hm-2,and the NUE were 49.32% which significantly increased by 38.42%;（2）compared to PU 100% with N content at 210 kg·hm-2,the rice grain yield showed no significant difference but the NUE significantly increased by 33.69% with a single basal application of SPCU 70%;（3）there was no significant difference between rice grain yields of SPCU and PCU;however,NUE of SPCU significantly increased compared to that of PCU.

关 键 词：包膜控释尿素 水稻产量 氮肥利用率 水稻 

分 类 号：S143.1[农业科学—肥料学]