Cultivation method for improving content of alliin in garlic and application of cultivation method

The invention relates to a cultivation method for increasing the content of alliin in garlic and application of the cultivation method, and belongs to the technical field of vegetable cultivation. The invention provides a cultivation method for increasing the content of alliin in garlic, which comprises the following steps: (1) applying a potassium sulfate aqueous solution in a garlic seedling stage; (2) in a garlic growing period, applying a potassium magnesium sulfate aqueous solution and a cysteine aqueous solution; (3) in a garlic bolting period, manually removing all flower bolts, and spraying a paclobutrazol aqueous solution on leaf surfaces at the same time; (4) applying a potassium magnesium sulfate aqueous solution and a valine aqueous solution in a garlic phosphorus stem expanding period; and (5) before harvesting the garlic bulbs, spraying cold water to leaf surfaces until water drops are left on the leaf surfaces. The cultivation method has the advantages of being easy to operate, easy to learn an