Multiple-cropping method of early-mature potato, celery and leafy vegetables in arched shed

The invention relates to a multiple-cropping method of early-mature potato, celery and leafy vegetables. The multiple-cropping method comprises the following steps: step 1, establishing the arched shed at an appropriate time; step 2, sprouting and seeding potatoes; step 3, applying base fertilizer to the potatoes; step 4, regulating temperature and humidity in the arched shed, and applying the fertilizer; step 5, nursing the celery; step 6, preventing early and late diseases of the potatoes; step 7, harvesting the potatoes and carrying out the land preparation and fertilization; step 8, planting the celery; step 9, carrying out the fertilizer and water management for the celery; step 10, applying the fertilizer to the celery, and carrying out the intertillage weeding; step 11, harvesting the celery; step 12, seeding the leafy vegetable; step 13, carrying out the field management for the leafy vegetable; step 14, harvesting the leafy vegetable. By utilizing the facility arched shed, the early-mature potatoes, celery and other leafy vegetables are produced according to respective production seasons, so that the multiple-cropping index of the land can reach 250 percent, the utilization rate of the land and light energy is increased, and the yield of the crops per unit area on the limited land area can be increased.