|Table of Contents|

Effect of a Complex Amendment on the Quality of Pak Choi Under Cd Contamination Stress(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2015年18
Page:
35-40
Research Field:
Publishing date:

Info

Title:
Effect of a Complex Amendment on the Quality of Pak Choi Under Cd Contamination Stress
Author(s):
HU Liping1ZHOU Guoxing2LI Chong3WANG Yiqian1HE Hongju1
(1.Key Laboratory of Urban Agriculture (North),Key Laboratory of Biology and Genetic Improvement of Horticultural Crops (North China),Beijing Vegetable Research Center,Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097;2.Beijing Hengyuan Jiada Science & Technology Co.Ltd.,Beijing 100080;3.Soil and Fertilizer Workstation in Daxing,Beijing 102600)
Keywords:
pak choicadmiumamendmentquality
PACS:
-
DOI:
10.11937/bfyy.201518009
Abstract:
Pot experiments were carried out to investigate the effect of a complex amendment on the soil organic matter content,pH,Cd uptake and nutritional quality of pak choi (Brassica rapa L.Chinensis Group.) planted in five levels (2,4,25,50,100 mg/kg) of Cd contaminated soil in which different concentrations of amendments (0,600,900,1 200 mg/kg) were added.The results showed that when applying 900 mg/kg amendment,the soil organic matter content increased from 12.36% to 72.24%.However,applying the amendment had no significant effect on the pH of soil.The security and nutritional quality of pak choi were obviously improved comparing with no amendment application.The Cd and crude fiber content of pak choi decreased from 32.04% to 44.87% and from 11.53% to 28.10%,respectively.Furthermore,the contents of vitamin C and soluble sugar of pak choi increased from 10.73% to 48.62% and from 10.37% to 59.52%,respectively.These datas indicated that the complex amendment could be used in the in-situ repair of heavy metal contaminated soil,and the recommended dosage was 900 mg/kg.

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Last Update: 2015-10-15