Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2018, Vol. 34 ›› Issue (24): 29-33.doi: 10.11924/j.issn.1000-6850.casb17060038

Special Issue: 园艺

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Effect of Pakchoi Intercropping on Hg Absorption and Accumulation in Ramie Overground Part

  

  • Received:2017-06-06 Revised:2017-08-15 Accepted:2017-08-24 Online:2018-08-28 Published:2018-08-28

Abstract: Intercropping of high Hg accumulation plant ramie and low Hg accumulation plant pakchoi was conducted to study Hg forms in soil and absorption and accumulation characteristics in these two plants. The results showed that soil acid soluble Hg contents of pakchoi monoculture (T1), ramie monoculture (T2) and ramie-pakchoi intercropping (T3) were significantly higher than that of CK, and the increasing range was 39.49%, 61.67% and 58.47%, respectively, and the content of residual Hg decreased from 51.22% (CK) to 45.61% (T3). The intercropping increased Hg content in ramie leaf and stem-fibre, decreased Hg content in pakchoi. The intercropping could realize soil remediation and agriculture production in Hg polluted soil.