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Long-term Effect of Year-Round Tillage Patterns on Yield and Grain Quality of Wheat

文献类型： 外文期刊

作者： Tang, Yonglu 2 ; Wu, Xiaoli 1 ; Li, Chaosu 1 ; Wu, Chun 1 ; Ma, Xiaoling 1 ; Huang, Gang 1 ;

作者机构： 1.Sichuan Acad Agr Sci, Crop Res Inst, Chengdu 610066, Sichuan, Peoples R China

2.Sichuan Prov Key Lab Water Saving Agr South China, Chengdu 610066, Sichuan, Peoples R China

关键词： Grain quality;Grain yield;Long-term effect;Tillage patterns;Wheat

期刊名称：PLANT PRODUCTION SCIENCE （ 影响因子：2.222； 五年影响因子：2.175 ）

ISSN：

年卷期：

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收录情况： SCI

摘要： A 7-year field experiment under a rice-wheat rotation system was conducted at Guanghan Comity in the Chengdu Plain of China from 2004 to investigate the long-term effect of different combinations of year-round tillage patterns and crop straw management on grain yield and quality of wheat. Treatments were rotary-till wheat + rotary-till rice without any straw (conventional treatment, CK), zero-till wheat with rice straw mulching + rotary-fill rice with no wheat straw (WZRR), zero-till wheat with rice straw mulching + rotary-fill rice with no wheat straw + autumn vegetable (WZRRV), zero-fill wheat with rice straw mulching + zero-fill rice with wheat straw mulching (WZRZ), and zero-till wheat with rice straw mulching + zero-fill rice with wheat straw mulching under ridge-till (WRZB). There was little variation amongst years in grain yield and yield components with the treatment, while CK had lower yields in most years than other treatments with a slight decreasing trend; spike numbers per area had no significant change with the elapse of time. An obvious descending trend in grain number per spike and grains per area for CK and increase in 1000-grain weight for all treatments were observed; zero tillage and straw mulching improved wheat tiller ability, soil available nitrogen, phosphorus, and potassium contents at major growth stages, and leaf area index, SPAD, a portable chlorophyll meter reading, and dry matter at middle and late stages. Most grain quality traits of wheat were nearly the same in all treatments in all year-round tillage patterns.

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