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Response of cadmium accumulation in rice (Oryza sativa L. cv. SPR1) grown with different organic soil amendments
Pratum, Chitsanuphong1.
Rice (Oryza sativa L.) is one of the food crops, which is found to have the great capacity
of cadmium (Cd) accumulation. This research was done to investigate the response to
Cd accumulation in rice grown with different organic soil amendments (OA), namely
soil supplemented with swine manure (SM), cow manure (CM), mixed chicken manure
and rice husk (CR), vermicompost (VC), and greensward compost (GC), respectively.
Each OA (4% w/w basis) was applied in each treatment with 3 Cd levels at 20, 40, and
60 mg/kg, respectively. The results showed that rice plants were not able to grow in 4%
w/w of SM and CM, respectively and wither following 70 d of planting. It was found in
the other treatment results that CR, VC, and GC increased harvest index (HI) as well as
soil pH while decreasing soil Eh and Cd-HI, compared with the control treatment. All the
Cd concentrations did not affect the height, but the wet weight of plants, decreased with
increase in Cd concentrations. Regarding the Cd accumulation, it was found that CR is
most effective in absorbing Cd in the paddy soils. In terms of Cd uptake, it was found that
GC was the only OA that could reduce the Cd uptake in the rice plant parts. The result
is consistent with reduction observed in the accumulation of cadmium in stems, leaves,
and especially rice grain. Therefore, based on the current finding, both CR and GC soil
amendments can be considered for immobilizing Cd in the contaminated fields.
Affiliation:
- Mahidol University, Thailand
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Indexation |
Indexed by |
MyJurnal (2021) |
H-Index
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3 |
Immediacy Index
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0.000 |
Rank |
0 |
Indexed by |
Scopus 2020 |
Impact Factor
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CiteScore (1.1) |
Rank |
Q3 (Agricultural and Biological Sciences (all)) Q3 (Environmental Science (all)) Q3¬¬- (Computer Science (all)) Q3 (Chemical Engineering (all)) |
Additional Information |
SJR (0.174) |
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