生态环境学报2016，Vol.25Issue(8)：1271-1276,6.DOI:10.16258/j.cnki.1674-5906.2016.08.003
水稻产量对双季稻-不同冬绿肥轮作及环境的响应
The Response of Rice Yields on Long-term Double Cropping Rice with Different Winter Green Manure Rotation and Environment
摘要
Abstract
Double rice cropping and winter green manure rotation system are the important strategies for high yield stability and sustainability at rice area in Southern China. In order to investigate the response characteristics of the rice yield to double rice cropping with different winter green manure rotation and environmental, a long-term double cropping rice with different winter green manure rotation experiment has been going on since 1982 in the Red Soil Experimental Station of CAAS. Four field treatments were examined: rice-rice-milk vetch (R-R-MV), rice-rice-rape (R-R-RP), rice-rice-ryegrass (R-R-RG) and rice-rice-winter fallow (R-R-WF). Yield coefficient of variation (CV), sustainable yield index (SYI) and additive main effects and multiplicative interaction (AMMI) model were used to analyse the interactions of double rice cropping with different winter green manure rotation and environment which can effect the stability of rice yield. Result showed that yield CV in different treatments decreased with experimental years. R-R-MV rotation could decrease yield CV but not other rotations. The highest SYI value was found in R-R-MV rotation, which was 0.58 for early rice and 0.59 for late rice, respectively. The sum of squares of interactions of double rice with different winter green manure rotation treatments and environment (F×E) was 2.3% of total sum of squares (P<0.05), which indicated that the combined effects of double cropping rice with different green manure rotation and environment on rice yield was relatively small, and the main factors affecting the variation of the rice yield was interannual climate changes. It was assumed that R-R-MV rotation could adapt to climate change better than other rotation treatments. Thus, the suitable rotation system of the double cropping rice regional to sustain the high rice yield and yield stablility could be rice-rice-milk vetch rotation.关键词
水稻产量/双季稻-绿肥轮作/产量变异系数/可持续性指数/AMMI分析Key words
rice yield/double cropping rice with green manure rotation/yield CV/SYI/AMMI analysis分类
农业科技引用本文复制引用
黄晶,刘淑军,张会民,王晓辉,高菊生..水稻产量对双季稻-不同冬绿肥轮作及环境的响应[J].生态环境学报,2016,25(8):1271-1276,6.基金项目
国家重点研发计划“粮食丰产增效科技创新”重点专项（2016YFD0300903,2016YFD0300901）,国家科技支撑计划项目 （）
