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Cadmium accumulation and its development tendency in black soil under long-term fertilization.
- Source :
- Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao; Dec2008, Vol. 19 Issue 12, p2738-2744, 7p, 2 Charts, 3 Graphs
- Publication Year :
- 2008
-
Abstract
- Based on the long-term field experiment at Hailun Agro-ecosystem Experimental Station of Chinese Academy of Sciences, this paper studied the cadmium (Cd) accumulation, its development tendency, and Cd availability in black soil under effects of long-term application of chemical N and P fertilizers and pig manure. The results showed that under no fertilization, soil Cd concentration had a slight increase. Long-term chemical N and P fertilization increased soil Cd concentration significantly, but soil Cd accumulation had less difference under different N and P fertilization rates. Applying pig manure increased the Cd accumulation in soil significantly, and the accumulation had a tendency of speed-up. Cd-containing feedstuff additives could be the important source of Cd in pig manure. No significant effects of chemical N and P fertilization were observed on the Cd availability in soil, but long-term application of pig manure increased the Cd availability significantly. [ABSTRACT FROM AUTHOR]
Details
- Language :
- Chinese
- ISSN :
- 10019332
- Volume :
- 19
- Issue :
- 12
- Database :
- Supplemental Index
- Journal :
- Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao
- Publication Type :
- Academic Journal
- Accession number :
- 52466278