[Effect of pig manure and rice straw on biological activity of Cd-contaminated soil].
Studies on the effects of pig manure and rice straw on the biological activity of Cd-contaminated permeable paddy soil showed that Cd-contaminated soil had a declined biological activity. After applying organic manure, the content of soil available Cd decreased significantly, being about 40%, and soil microbial C, N and P and soil dehydrogenase and catalase activities increased 30%-100%. There existed a negative correlation between soil available Cd and soil microbial C and N, indicating that microbial C and N could be used as an index of Cd-contaminated soil.
College of Resources and Environmental Sciences, MOA Key Laboratory of Plant Growth Regulation, Nanjing Agricultural University, Nanjing 210095, China. yalizh@smtp.njau.edu.cn
Yali
Y
Zhang
Qirong
Q
Shen
Xuejian
X
Xie
Zhaohai
Z
Sun
D000818:Animals; D001673:Biodegradation, Environmental; D002104:Cadmium / Q000032:analysis*; D005308:Fertilizers; D008372:Manure; D012275:Oryza / Q000378:metabolism*; D012987:Soil / Q000032:analysis*; D012989:Soil Pollutants / Q000032:analysis*; D013552:Swine
D005308:Fertilizers; D008372:Manure; D012987:Soil; D012989:Soil Pollutants; D002104:Cadmium