中国农业科学2012，Vol.45Issue(18)：3721-3732,12.DOI:10.3864/j.issn.0578-1752.2012.18.005
成都平原周年耕作模式对稻茬小麦产量与品质性状的持续效应
Long-Lasting Effect of Year-Round Tillage Patterns on Yield and Grain Quality of Wheat in Chengdu Plain of China
摘要
Abstract
[Objective] In order to optimize regional fanning system, the long-lasting effect of year-round tillage patterns on wheat yield and quality traits was studied. [Method] A long-term field experiment under rice-wheat system was established at Guanghan county in Chengdu Plain of China in 2004 to investigate the long-lasting effect of year-round tillage patterns combing tillage and crop straw management on grain yield and quality of wheat. Treatments designed include no-tillage wheat with rice straw mulching + rotary-tillage rice with no wheat straw (WZRR), no-tillage wheat with rice straw mulching + rotary-tillage rice with no wheat straw + Autumn vegetable (WZRRV), no-tillage wheat with rice straw mulching + no-tillage rice with wheat straw mulching (WZRZ), no-tillage wheat with rice straw mulching + no-tillage rice with wheat straw mulching under raised-bed planting (WRZB), and rotary-tillage wheat + rotary-tillage rice without any straw (CK). [Result] The results from 7-year duration showed: Undulating changes amongst years in grain yield and yield components for all treatments were observed while CK had lower yields in most years than other treatments with obvious decreasing trend. Obvious descending trend in grain number per spike and upswing in thousand-grain weight for all treatments were observed. All treatments excluding CK improved available N, P, and K content of up layer soil at major stages of wheat growth and the quality of individual plant and canopy at late stage. Most grain quality traits of wheat of WZRZ and WRZB were slightly higher than or same as that of CK but WZRR and WZRRV showed a downward trend in grain protein content, Zeleny sedimentation volume, and dough stability time.[ Conclusion] No tillage, crop straw retention and their year-round combinations could stable grain yield of wheat and improve soil fertility, with highlights in technological packages of both no tillage and straw retention for wheat and rice.关键词
小麦/成都平原/耕作模式/持续作用/产量/品质Key words
wheat/ Chengdu Plain/ tillage patterns/ long-lasting effect/ grain yield/ grain quality引用本文复制引用
汤永禄,李朝苏,吴春,马孝玲,黄钢..成都平原周年耕作模式对稻茬小麦产量与品质性状的持续效应[J].中国农业科学,2012,45(18):3721-3732,12.基金项目
国家现代农业产业技术体系建设资金(CARS-3-1-23)、公益性行业(农业)科研专项(200903010-06)、四川省科技支撑计划项目(2006YZGG-28) （CARS-3-1-23）
