中国水稻科学2011，Vol.25Issue(6)：629-638,10.DOI:10.3969/j.issn.1001-7216.2011.06.010
稻麦“双迟”栽培模式及其周年生产力的综合评价
“Double Late” Cultivation Model for Rice and Wheat and Its Comprehensive Evaluation on Annual Productivity
摘要
Abstract
Effects of "double late" (late-maturity rice and late-sowing wheat) cultivation model on annual productivity of rice and wheat were systematically studied in a field experiment with four cultivation model treatments. Results showed that with the crop rotation being delayed, annual grain yield of rice and wheat increased. Grain yield of rice increased, whereas the grain yield of wheat increased firstly and then decreased with the highest yield under late-maturity medium japonica rice + wheat model (LMW). Moreover, prolonging rice growth duration and developing large panicles improved annual grain yield of rice and wheat. With maturity being prolonged, productivity with respect to the key inputs of rice increased. But for wheat, productivity per unit of seed decreased and others increased firstly and then decreased with the best performance under LMW model. Appropriate sowing date helped improve productivity with respect to key inputs, while appropriately delayed crop rotation was awarding to annual economic productivity of rice and wheat. Additionally, the concept of "double late" cultivation model and its regulation approaches were discussed.关键词
双迟栽培/水稻/小麦/周年生产力Key words
double late cultivation/ rice/ wheat/ annual productivity分类
农业科技引用本文复制引用
龚金龙,李德剑,沙安勤,周有炎,罗学超,张洪程,常勇,胡雅杰,龙厚元,戴其根,霍中洋,许轲,魏海燕..稻麦“双迟”栽培模式及其周年生产力的综合评价[J].中国水稻科学,2011,25(6):629-638,10.基金项目
江苏省粮食丰产科技工程资助项目(BE2009425) （BE2009425）
国家粮食丰产科技工程资助项目(2006BAD02A03) （2006BAD02A03）
农业部超级稻专项资助项目. （）
