Experiment on the Treatment of the Rural Wastewater by the Paddy Wetland System

Abstract:

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A field experiment was conducted to remove the potential eutrophication effect of N and P from rural wastewater (RW) during the whole rice growing season of 2010. Commercial fertilizer and RW were applied to furnish 40 kg P ha-1except CK. Results showed TN concentration of the floodwater in the paddy wetland system decreased quickly after transplanting, rosed significantly (P ≤ 0.05) after two N topdressings, and then decreased gradually as the following sequences: SW > GW > DW > BW > CK. Total P (TP) concentration had significantly declined after P application, from October 15 there were no significant increases in TP concentration in the floodwater. Meanwhile, the yield for CK was significantly less (P ≤0.05) than SW, GW, DW, and BW, with the yield of BW significantly greater (P ≤ 0.05) than other treatments. It is feasible to remove N and P from RW by the paddy wetland system and can be widely used to improve the yield of rice.

Info:

Periodical:

Advanced Materials Research (Volumes 347-353)

Edited by:

Weiguo Pan, Jianxing Ren and Yongguang Li

Pages:

2103-2106

DOI:

10.4028/www.scientific.net/AMR.347-353.2103

Citation:

S. Li et al., "Experiment on the Treatment of the Rural Wastewater by the Paddy Wetland System", Advanced Materials Research, Vols. 347-353, pp. 2103-2106, 2012

Online since:

October 2011

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Price:

$35.00

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