Journal of Ecology and Rural Environment ›› 2016, Vol. 32 ›› Issue (4): 645-650.doi: 10.11934/j.issn.1673-4831.2016.04.020

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Effects of Application of Swine Farm Wastewater Coupled With Chemical Fertilizer on Water, Soil and Crop

ZHANG Xin-liang   

  1. Shanghai Academy of Environmental Sciences, Shanghai 200233, China
  • Received:2015-07-24 Online:2016-07-25 Published:2016-07-26


Land application of livestock manure and wastewater has been gradually accepted as an effective waste disposal option for intensive livestock and poultry farms to reduce discharge of pollution, and the option is thought to be economically, environmentally and socially beneficial. However, it is still unclear whether the option has any potential impacts on soil and water environment and crop yield. Therefore, a field experiment was carried out in Chongming Island, Shanghai, to compare between application of anaerobically digested wastewater from a large-scale swine farm coupled with chemical fertilizer in paddy field (SMC field) and conventional application of chemical fertilizer (CKC field) in impact on water environment (pollution load in surface runoff and concentrations of pollutants in groundwater), soil environment (nutrient content) and crop yield. Results show that in SMC, COD, TP and DP in surface runoff was increased significantly by 32.18%, 15.46% and 28.13%, respectively, while ammonia nitrogen was decreased by 31.81%, in SMC filed; and COD, NO3--N, TP and DP in groundwater was increased by 24.69%, 17.04%, 11.76% and 21.05%, respectively; Compared with the initial data of the field, TN decreased significantly in all the soil layers in SMC and TP decreased significantly in CKC. However, SMC and CKC did not differ much in crop yield.

Key words: intensive swine farm, digested wastewater, land application, non-point source pollution

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