Effects of A New Special Fertilizer on the Yield,Quality and Nutrient Use Efficiency of Chinese Cabbage

[Objective] The aim of the research was to provide reference basis for the development of new special fertilizers.[Method] A new type of special fertilizer(N∶P2O5∶K2O=16∶7∶13) for Chinese cabbage was prepared.5 fertilizer treatments were set up to compare the application effects of new special fertilizer,common fertilizer and Russia compound fertilizer on Chinese cabbage.[Result] New special fertilizer increased the yield of Chinese cabbage significantly or extremely significantly.Compared with common fertilizer,applying special fertilizer could increase the yield by 10.0% when fertilizers were applied with equal nutrient amount and equal nutrient proportion.Compared with Russia compound fertilizer(N∶P2O5∶K2O=16∶16∶16),applying new special fertilizer with equal nutrient amount could increase the yield by 20.0%. New special fertilizer could obviously improve the quality of Chinese cabbage and the soluble sugar content was increased by 2.7～3.4 g/100 g,reaching significant or extremely significant level.It could obviously increase the use efficiency of fertilizers.N,P and K were increased by 3.4%,2.4% and 9.8% resp.than common fertilizer and by-0.1%,10.0% and 9.5% resp.than Russia compound fertilizer.[Conclusion] It was a valid measure for realizing the yield increase of crop and protecting the environment to study and develop new special fertilizers.