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Chinese Journal of Applied Ecology ›› 2016, Vol. 27 ›› Issue (7): 2315-2320.doi: 10.13287/j.1001-9332.201607.038

• Special Features for the 31 th National Symposium on Landscape Ecology • Previous Articles     Next Articles

Effects of rice-duck mutualistic organic farming on rice quality in the Yellow River Delta, China.

WANG Jian-lin1*, LI Jie2, CAO Yuan-yuan1   

  1. 1Qingdao Agricultural University, Qingdao 266109, Shandong, China;
    2Research Center of Sustainable Development in the Yellow River Delta, Dongying 257000, Shandong, China
  • Received:2015-12-18 Published:2016-07-18
  • Contact: *E-mail: wangjianlin@qau.edu.cn
  • Supported by:
    This work was supported by the National Science and Technology Pillar Program of China (2012BAD05B0204) and the Yellow Ri-ver Delta Scholars Fund.

Abstract: Three cultivation models including rice-duck mutualistic, manual weeding and conventional rice farming were designed in the Yellow River Delta area to study the effects on rice milling quality, appearance quality, cooking and eating quality, and sanitation quality. The results showed that compared to conventional rice farming, the rice-duckmutualistic treatment increased grain width and brown rice rate, milled rice rate, head rice rate and reduced the chalkiness. This was mainly due to the increase of panicle numbers and grain mass and the decrease of the inferior grains. Due to the application of organic manure, the gel consistency increased, amylose and protein contents decreased, and the rice taste improved under rice-duck mutualistic and manual weeding cultivation treatments. As no chemical fertilizers and pesticides were applied under rice-duck mutualistic and manual weeding treatments, pesticide residues were greatly reduced or even not detected. Rice duck farming could improve the quality of rice and protect the environment, which would be a good ecological technology for high quality rice production.