【Objective】 The effects of urea-formaldehyde fertilizer on the yield and nitrogen use efficiency(NUE) of vegetables were studied to promote the development and application of urea-formaldehyde fertilizer special for leafy vegetables.【Method】 Three nitrogen fertilizers applied in the experiment were urea(U),urea-formaldehyde fertilize(UF),and urea blended with urea-formaldehyde fertilizer(U+UF).The study covered two continuous cropping seasons of Chinese cabbage in micro-plot field.All of the three fertilize...