Effects of Reducing Fertilizer Application on Vegetable Soil Nutrient Leaching and Spring Cabbage Yield

A field experiment was carried to study the effects of reducing fertilizer application on vegetable soil nutrient leaching and spring cabbage yield.Results showed that N,P,K fertilizer usage of spring cabbage were the amount their uptake by 2.64 times,5.8 times and 1.02 times respectively.Long-term fertilization resulted in vegetable soil available P accumulation,increased soil nutrient imbalances,a number of trace elements into a new nutrient limiting factor.Custom fertilizer N,P leaching significantly,the N,P leaching losses of improved reducing fertilizer application technology decreased by 90.0%,78.4% respectively.Unbalanced reducing fertilizer application reduce the spring cabbage yield and economic efficiency,with the S,B,Zn reducing fertilizer application technology could significantly promote the absorption of nutrients in the spring cabbage,increase production and economic benefits.Conclusion: The balanced fertilization technology of vegetable soil could significantly reduce the amount of fertilization of spring cabbage,improved fertilizer utilization rate,increased productivity and economic efficiency,and reduced the N,P nutrient leaching,reduce thed fertilizer pollution.