Increase of available soil silicon by Si-rich manure for sustainable rice production

  title={Increase of available soil silicon by Si-rich manure for sustainable rice production},
  author={Zhaoliang Song and Hailong Wang and Peter James Strong and Sheng-dao Shan},
  journal={Agronomy for Sustainable Development},
Depletion of bioavailable silicon, Si, in paddy soils can decrease the yields of rice. A potential solution is to amend soil with Si-rich organic wastes such as manure from animals fed with rice crop residues. Here, we studied Si in soils from 2000 to 2010 field experiments without manure, with 5 and 10 years of manure, in Eastern China. Results showed that available Si in soils increased from 130 to 270 mg kg−1 after 10 years of manure amendment. This finding is explained either by direct… CONTINUE READING


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