Research Papers

Effect of Different Tillage Systems on the Corrosion Resistance and Water Storage   of Soil and Crop Yield under  RiceWheat Rotation in Chengdu Plain

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  • 1Institute of Industrial Crop, Yunnan Academy of Agricultural Sciences, Kunming 650205, China; 2 Institute of Crop Science, Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology and Production, Ministry of Agriculture, Beijing 100081, China; 3Institute of  Crop Science, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China;

Received date: 2013-07-20

  Revised date: 2014-01-07

  Online published: 2014-03-10

Abstract

A longterm experiment was conducted to study the effects of tillage measures on soil water storage and corrosion resistance and crop yield under ricewheat rotation. The treatments were wheat and rice double rotation with no straw returning (non conservation tillage control, CK), wheat and rice notillage with wheat and rice straw returning (WRNT), wheat notillage and rice rotation with rice straw returning (WNRCT) and wheat and rice ridge notillage with wheat and rice straw returning (WRRT). The results showed that compared with the control, conservational tillage increased water storage capacity of 0-10cm soil layer.  Correlation analysis showed that water storage capacity significantly negatively correlated with mean weight diameter of soil aggregates, soil corrosion resistance was positively correlated with total porosity and capillary porosity, notillage significantly increased soil erodibility K value and erodibility index. No significant effect of tillage treatment was noted on wheat yield. The  highest wheat yield  was obtained under WNRCT, while the yield stability under WRRT ranked first, followed by WRNT. Significant effect of tillage treatment was noted on rice yield and rice yield stability, with highest rice yield and rice yield stability under WNRCT. Effects of tillage treatments on soil properties and crop yield differed. 

Cite this article

LIANG Shumin1, XIE Ruizhi2, TANG Yonglu3, LI Chaosu3, WANG Xin1, HE Xiaoying1, LI Shaokun2,* . Effect of Different Tillage Systems on the Corrosion Resistance and Water Storage   of Soil and Crop Yield under  RiceWheat Rotation in Chengdu Plain[J]. Chinese Journal OF Rice Science, 2014 , 28(2) : 199 -205 . DOI: 10.3969/j.issn.1001-7216.2014.02.012

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