ACTA AGRICULTURAE BOREALI-SINICA ›› 2015, Vol. 30 ›› Issue (4): 168-173. doi: 10.7668/hbnxb.2015.04.029

Special Issue: Rice

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Effect of Direct-seeding with Non-flooding and Wheat Residue Returning Patterns on Grain Yield and Grain Quality of Rice

ZHANG Zi-chang1,2, WANG Zhi-qin2, LIU Li-jun2, YANG Jian-chang2, LI Yong-feng1   

  1. 1. Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China;
    2. Key Laboratory of Crop Genetics and Physiology of Jiangsu Province, Yangzhou University, Yangzhou 225009, China
  • Received:2015-05-08 Published:2015-08-28

Abstract: In order to investigate yield and quality formation characteristics of direct-seeding rice under non-flooding and wheat residue returning,two rice cultivars,Yangdao 6 hao(an indica) and Yangjing 4038 (a japonica),were field grown using a direct-seeding method,and four treatments,wheat straw incorporation into soil and traditional flooding (SIF),non-flooding and wheat straw mulching (NSM),non-flooding and wheat straw incorporation into soil (NSI) and traditional flooding (no straw returned,control,TF),were imposed after sowing to maturity.Compared with TF,SIF increased in yield by 10.2%-11.5%,NSI and NSM showed some reduction in yield and the reduction was 3.0%-6.6%.The difference in increase was significant between SIF and TF,and was not significant between NSI and NSM or between NSM and TF.SIF,NSI and NSM significantly improved milling quality,appearance quality,cooking and peak viscosity and breakdown of RVA.Increases in photosynthetic rate of the flag leaf,root oxidation activity and sucrose synthase (Susase) and adenosine diphosphate glucose pyrophospgorylase (AGPase) activity in grains at the mid and late grain filling stage contributed to a higher yield and better quality under SIF,NSI and NSM.

Key words: Rice, Grain yield, Grain quality, Non-flooding cultivation, Wheat residue returning

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Cite this article

ZHANG Zi-chang, WANG Zhi-qin, LIU Li-jun, YANG Jian-chang, LI Yong-feng. Effect of Direct-seeding with Non-flooding and Wheat Residue Returning Patterns on Grain Yield and Grain Quality of Rice[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2015, 30(4): 168-173. doi: 10.7668/hbnxb.2015.04.029.

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