植物营养与肥料学报2011，Vol.17Issue(3)：578-582,5.
施氮模式对冬小麦/夏玉米产量及氮素利用的影响
Effects of nitrogen application patterns on yields of winter wheat and summer maize and nitrogen use efficiency
摘要
Abstract
Under the field experiment condition, effects of different nitrogen application patterns on yields of wheat and maize and nitrogen use efficiency were studied during 2007 -2009. There were six treatments including no fertilizer (CK), convention fertilizer (CON), organic complex fertilizer (OMF), controlled release fertilizer (CRF),controlled loss fertilizer (CLF) and changing basic fertilizer and topdressing regimes (CBT). There were the same amounts of nitrogen (N) application with 250 kg/ha in wheat season and 200 kg/ha in maize season in each fertilizer treatment. The results show that the dry matter accumulation and grain yields are significantly increased with all the treatments, comparing the CK, including CON, OMF, CRF, CLF and CBT. The grain yields of winter wheat are in the order: CRF ＞ CLF ＞ OMF ＞ CBT ＞ CON, which are between 107.5％ and 147.4％; those of summer maize: CRF＞ CLF ＞OMF＞ CON ＞ CBT, and range from 28.5％ to 56.1％. Compared with CON, N partial factor productivity and N agronomic efficiency of winter wheat are increased observably by 2.2 -5.1 kg/kg under the OMF, CLF and CRF treatments, and by 3.6 -7.6 kg/kg for summer maize. But the CBT treatment is represented differently, it could increase in winter wheat and decrease in summer maize. In conclusion, compared with the control and conventional treatments, the OMF, CRF and CLF treatments could increase grain yield and nitrogen use efficiency, and could be taken as fertilizer types by spread and application. The CBT treatment is more appropriate N application pattern for winter wheat, while is not appropriate for summer maize in the study region.关键词
施氮模式/冬小麦/夏玉米/产量/氮肥利用率分类
农业科技引用本文复制引用
王小明,谢迎新,王永华,王晨阳,朱云集,郭天财..施氮模式对冬小麦/夏玉米产量及氮素利用的影响[J].植物营养与肥料学报,2011,17(3):578-582,5.基金项目
中国科学院知识创新工程重大项目(KZCX2-YW-312) （KZCX2-YW-312）
农业部国家公益性行业科研专项计划项目(2008326) （2008326）
"973"计划项目"主要粮食作物高产栽培与资源高效利用的基础研究"(2009CB118602)资助. （2009CB118602）
