Abstract: A fertilization experiment was carried out on two cropping of vegetables growing in simulated soil column.The experiment was designed to have 7 fertilization patterns i.e.(1)CK or no fertilizer,(2)chemical fertilizer applied as basal dressing,(3)chemical fertilizer applied half as basal dressing and half as side-dressing,(4)chemical fertilizer and dicyandiamide applied as basal dressing,(5)chemical fertilizer and dicyandiamide applied half as basal dressing and half as side-dressing,(6)chemical fertilizer and organic manure(half and half on N basis),and(7)organic manure applied as basal dressing to test effect of different fertilization patterns on yield and nitrate content of the vegetables,and loss of nitrogen and phosphorus from the simulated soil column.Results show that Pattern 4 and Pattern 7 not only produced higher yield of vegetables that were lower in nitrate content,but also significantly reduced leaching loss of nitrate-nitrogen,ammonia-nitrogen and water-soluble phosphorus from the soil column.Consequently,the findings can be used to effectively alleviate agricultural non-point source N and P pollution from vegetable fields to underground water bodies.