Effects of Biogas Slurry Foliar Fertilizer on the Yield and Quality of Dehydrated Oil Pakchoi

[Objective] The aim of the study was to prepare foliar fertilizer with biogas slurry as main component so as to serve agricultural production.[Method] The effects of different formulas of biogas slurry foliar fertilizer on the yield and quality of dehydrated oil pakchoi were studied through field plot experiment.[Result] Compared with CK,the yield increments of treatments with biogas slurry diluted with clear water for 2 times + chemical fertilizer and biogas slurry diluted with clear water for 3 times + chemical fertilizer were greatest and their yields were increased by 15.77% and 12.71% resp.;that of treatments with biogas slurry diluted with clear water for 4 times + chemical fertilizer and biogas slurry diluted with clear water for 2 times + urea were secondary and their yields were increased by 5.68% and 1.73% resp.and the yield of treatment with biogas slurry diluted with clear water for 2 times was increased by 0.96%.The chlorophyll content in oil pakchoi leaves of treatment with biogas slurry diluted with clear water for 2 times + chemical fertilizer was increased most.The Vc contents in dehydrated oil pakchoi of all the treatments were increased a little and that of treatment with biogas slurry diluted with clear water for 2 times + chemical fertilizer was increased significantly.[Conclusion] The boigas slurry at different concn.could enhance the yield and quality of dehydrated oil pakchoi to some extent.