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Effects of controlled traffic no-till system on soil chemical properties and crop yield in annual double-cropping area of the North China Plain

文献类型： 外文期刊

作者： Lu, Caiyun 1 ; Li, Hongwen 1 ; He, Jin 1 ; Wang, Qingjie 1 ; Sarker, Khokan Kumer 1 ; Li, Wenying 1 ; Lu, Zhanyuan 3 ; Ra 1 ;

作者机构： 1.China Agr Univ, Beijing Key Lab Optimised Design Modern Agr Equip, Coll Engn, Beijing 100083, Peoples R China

2.Beijing Acad Agr & Forestry Sci, Beijing Res Ctr Intelligent Equipment Agr, Beijing 100097, Peoples R China

3.Inner Mongolia Acad Agr & A

关键词： available P;bulk density;C/N ratio;conventional tillage;pH;soil organic matter;total nitrogen

期刊名称：SOIL RESEARCH （ 影响因子：1.987； 五年影响因子：2.47 ）

ISSN：

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收录情况： SCI

摘要： A controlled traffic no-till system is a cropping system that has a significant potential to improve soil health, sustainability and crop yield. A pilot experiment was conducted to compare soil chemical properties and crop yields between controlled traffic no-till and random traffic in an annual double-cropping area of the North China Plain from 2005 to 2010. The experiment was performed using three treatments: (1) controlled traffic no-till (NTCT); (2) random traffic no-till (NTRT); and (3) conventional tillage (CT). The NTCT treatment significantly improved soil organic matter and total N compared with both NTRT and CT treatments and remarkably increased available P compared with CT treatment in the surface soil layer (0-10 cm), but no significant differences were found in soil pH compared with both NTRT and CT treatments. However, in the 10-20- and 20-30-cm soil profiles, soil organic matter, total N and available P were reduced after NTCT treatment when compared with those obtained after CT treatment. At 0-10 cm soil depths, soil bulk density under NTCT and NTRT was higher than in CT, whereas the opposite was true at soil depths of 10-30 cm. Overall, it was found that the 6-year mean maize yield of NTCT and NTRT treatments was 10.9% and 1.1% higher respectively than the CT treatment, whereas the winter wheat yield was 1.1% and 3.0% higher respectively compared with the CT treatment. NTCT appears to be an improvement over current farming systems in an annual double-cropping area of the North China Plain.

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