中国农业科学2011，Vol.44Issue(23)：4781-4792,12.DOI:10.3864/j.issn.0578-1752.2011.23.003
不同栽培模式对杂交粳稻常优3号产量及养分吸收利用效率的影响
Effects of Different Cultivation Patterns on Grain Yield and Nutrient Absorption and Utilization Efficiency of Japonica Hybrid Rice Changyou 3
摘要
Abstract
[Objective] Rice is one of the most important food crops in China. Continuous realization of high yield has a great significance in ensuring food security and society stability. Meanwhile, low nutrient use efficiency is a serious problem in rice production in China. The objective of this study was to investigate if a cultivation technique could coordinately increase both grain yield and nutrient use efficiency of rice. [Method] The japonica hybrid rice cultivar Changyou 3 was used and six cultivation patterns were conducted. No nitrogen application (ON), local high-yielding cultivation (control), high-yielding and high efficiency cultivation (HHC), super high-yielding cultivation (SHC), super high efficiency cultivation (SHE) and stable yield and high efficiency cultivation (SYHE) were designed. The characteristics of grain yield formation under different cultivation patterns and their nutrient absorption and utilization efficiencies were analyzed. [Result] The results showed that the average yields of HHC, SHC,SHE and SYHE were 9.5, 11.5, 10.7 and 9.0 thm2, respectively, and 14.5%, 38.6%, 28.9% and 8.4% higher than the control. Nitrogen recovery efficiency was increased by 39.5%, 93.9%, 86.1%, and 31.0%, and nitrogen agronomic efficiency was increased by 66.5%, 84.4%, 98.2% and 70.1% under HHC, SHC, SHE and SYHE, respectively, when compared with the control. The accumulations of nitrogen (N), phosphorus (P) and potassium (K) from panicle initiation to heading were very significantly and positively correlated with the yields. [Conclusion] The results indicated that higher grain yield and higher nutrient use efficiencycan be coordinately achieved through integrating and optimizing cultivation techniques in rice production.关键词
水稻/栽培模式/产量/养分利用效率Key words
rice/ cultivation pattern/ yield/ nutrient use efficiency引用本文复制引用
薛亚光,王康君,颜晓元,尹斌,刘立军,杨建昌..不同栽培模式对杂交粳稻常优3号产量及养分吸收利用效率的影响[J].中国农业科学,2011,44(23):4781-4792,12.基金项目
国家"973"计划项日(2009CB118603)、国家自然科学基金国际重大合作项日(31061140457)、国家自然科学基金项目(30800670,31071360)、江苏省基础研究计划项目(BK2009005)、国家公益性行业(农业)科研专项(201103003) （2009CB118603）
