Effect on cabbage quality with rural sewage primary treatment water irrigation
Yan Ailan1, Zheng Zhijin2, Qi Yiting1
1.Institute of Hydraulic & Environmental Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou, Zhejiang 310018, China; 2.Huzhou Daxi Town Agricultural Service Center, Huzhou, Zhejiang 313023, China
Abstract:Through three kinds of water quality for irrigation on the growth of vegetables, it has discussed the influence of quality to the vegetable plant growth with utilization of rural primary treatment sewage. Research shows that, rural sewage water, after primary treatment of rural domestic sewage irrigation on vegetable growth period, have a certain influence on the the content of vitamin C and nitrate of the cabbage plants.The vitamin C content decreased about 10%, and the content of nitrate increased by 6% or so. Compared with the national standard limit of nitrate content in vegetables, it is in the safety of edible range after sewage irrigation of vegetables, and it will not affect the health of human beings. Therefore, rural sewage can be used as another important source of water for irrigation of crops, and it has certain technical feasibility and economic rationality.
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