Cu fractions, accumulation and bioavailability in black soil-rice system affected by application of pig manures
Pot experiments were conducted to examine the copper (Cu) fractions, mobility, availability and uptake by rice in black soil affected by application of pig manure (PM). The results indicated that Cu was predominately distributed in organic and residual-bound fractions, while the percentages of carbo...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Zhejiang University Press
2012-01-01
|
| Series: | 浙江大学学报. 农业与生命科学版 |
| Subjects: | |
| Online Access: | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2012.01.014 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850069825443856384 |
|---|---|
| author | MA Rong-hui ZHU Rui ZONG Yu-tong LU Sheng-gao |
| author_facet | MA Rong-hui ZHU Rui ZONG Yu-tong LU Sheng-gao |
| author_sort | MA Rong-hui |
| collection | DOAJ |
| description | Pot experiments were conducted to examine the copper (Cu) fractions, mobility, availability and uptake by rice in black soil affected by application of pig manure (PM). The results indicated that Cu was predominately distributed in organic and residual-bound fractions, while the percentages of carbonate and organic-bound fractions increased with increasing Cu concentrations in soil. The application of PM at the rate of 1% significantly reduced the DW (deionied water)- and DTPA-extractable Cu (P<0.01), but the increase in the amounts of TCLP (toxicity characteristics leaching procedure) -extractable Cu was not significant. The application of PM at the rate of 1% significantly declined the Cu mobility, effectively transformed soil Cu from soluble fractions to stable forms, but application of PM at the rate of 3% exhibited the opposite effect. The uptake of Cu by rice was very low compared with quantities accumulated in soil, however Cu concentrations in grains approached threshold level (GB 15199-1994, Cu ≤ 10 mg·kg<sup>-1</sup>) after Cu application of ≥ 400 mg·kg<sup>-1</sup> in soil. The application of PM at the rate of 1% significantly reduced Cu concentrations in rice plant tissues (P<0.01). The results also suggested that pig manure application with moderate Cu enrichment could decline Cu bioavailability in Cu contaminated soil, but long-term and excessive amount of PM had a phototoxic effect and presented a potential threat to human health. Therefore, much attention should be paid regarding application of pig manures with high amount Cu for environmental and food safety. |
| format | Article |
| id | doaj-art-ac5479007fa44de2b82b90c7ca669f24 |
| institution | DOAJ |
| issn | 1008-9209 2097-5155 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Zhejiang University Press |
| record_format | Article |
| series | 浙江大学学报. 农业与生命科学版 |
| spelling | doaj-art-ac5479007fa44de2b82b90c7ca669f242025-08-20T02:47:40ZengZhejiang University Press浙江大学学报. 农业与生命科学版1008-92092097-51552012-01-013810811810.3785/j.issn.1008-9209.2012.01.01410089209Cu fractions, accumulation and bioavailability in black soil-rice system affected by application of pig manuresMA Rong-huiZHU RuiZONG Yu-tongLU Sheng-gaoPot experiments were conducted to examine the copper (Cu) fractions, mobility, availability and uptake by rice in black soil affected by application of pig manure (PM). The results indicated that Cu was predominately distributed in organic and residual-bound fractions, while the percentages of carbonate and organic-bound fractions increased with increasing Cu concentrations in soil. The application of PM at the rate of 1% significantly reduced the DW (deionied water)- and DTPA-extractable Cu (P<0.01), but the increase in the amounts of TCLP (toxicity characteristics leaching procedure) -extractable Cu was not significant. The application of PM at the rate of 1% significantly declined the Cu mobility, effectively transformed soil Cu from soluble fractions to stable forms, but application of PM at the rate of 3% exhibited the opposite effect. The uptake of Cu by rice was very low compared with quantities accumulated in soil, however Cu concentrations in grains approached threshold level (GB 15199-1994, Cu ≤ 10 mg·kg<sup>-1</sup>) after Cu application of ≥ 400 mg·kg<sup>-1</sup> in soil. The application of PM at the rate of 1% significantly reduced Cu concentrations in rice plant tissues (P<0.01). The results also suggested that pig manure application with moderate Cu enrichment could decline Cu bioavailability in Cu contaminated soil, but long-term and excessive amount of PM had a phototoxic effect and presented a potential threat to human health. Therefore, much attention should be paid regarding application of pig manures with high amount Cu for environmental and food safety.https://www.academax.com/doi/10.3785/j.issn.1008-9209.2012.01.014pig manureblack soil-rice systemcopperchemical fractionsbiological accumulationbioavailability |
| spellingShingle | MA Rong-hui ZHU Rui ZONG Yu-tong LU Sheng-gao Cu fractions, accumulation and bioavailability in black soil-rice system affected by application of pig manures 浙江大学学报. 农业与生命科学版 pig manure black soil-rice system copper chemical fractions biological accumulation bioavailability |
| title | Cu fractions, accumulation and bioavailability in black soil-rice system affected by application of pig manures |
| title_full | Cu fractions, accumulation and bioavailability in black soil-rice system affected by application of pig manures |
| title_fullStr | Cu fractions, accumulation and bioavailability in black soil-rice system affected by application of pig manures |
| title_full_unstemmed | Cu fractions, accumulation and bioavailability in black soil-rice system affected by application of pig manures |
| title_short | Cu fractions, accumulation and bioavailability in black soil-rice system affected by application of pig manures |
| title_sort | cu fractions accumulation and bioavailability in black soil rice system affected by application of pig manures |
| topic | pig manure black soil-rice system copper chemical fractions biological accumulation bioavailability |
| url | https://www.academax.com/doi/10.3785/j.issn.1008-9209.2012.01.014 |
| work_keys_str_mv | AT maronghui cufractionsaccumulationandbioavailabilityinblacksoilricesystemaffectedbyapplicationofpigmanures AT zhurui cufractionsaccumulationandbioavailabilityinblacksoilricesystemaffectedbyapplicationofpigmanures AT zongyutong cufractionsaccumulationandbioavailabilityinblacksoilricesystemaffectedbyapplicationofpigmanures AT lushenggao cufractionsaccumulationandbioavailabilityinblacksoilricesystemaffectedbyapplicationofpigmanures |