Efficient water and fertilizer management method for brassicaceous vegetables

The invention provides an efficient water and fertilizer management method for brassicaceous vegetables, which adopts a fertilization method combining root dripping and foliage spraying and comprises the following steps: heavily applying a phosphate fertilizer in the early stage of the growth of the brassicaceous vegetables, heavily applying a nitrogen fertilizer in the middle stage and heavily applying a potash fertilizer in the later stage, the water-soluble fertilizer containing large, medium and trace elements, the organic fertilizer, the compound microorganism fertilizer, the water-soluble fertilizer containing amino acid and the water-soluble fertilizer containing humic acid are distributed as required according to the reasonable application principle. The method changes the traditional large-water and large-fertilizer management habit, realizes proper-time and proper-amount water and fertilizer distribution according to needs during the growth period of vegetables, gives full play to the advantages of