The invention discloses a vegetable-
fertilizer dual-purpose high-efficiency cultivation method for
astragalus sinicus in a winter-fallowed
paddy field. The method comprises the following steps: a winter fallow field of rice areas in southern China is selected, after single-season rice or late rice is harvested, a mechanical ditching or artificial ditching manner is adopted to dig a surrounding
ditch around the field, then a plurality of parallel strip ditches are dug in the surrounding
ditch, the strip ditches communicate with the surrounding
ditch, from mid-late September to mid-October, 3-4large-
leaf type astragalus sinicus varieties of extremely early maturity, early maturity, medium maturity and late maturity in the different growth stages are used,
drill seeding is performed, from January to April of a following year, according to growth conditions of different varieties of the
astragalus sinicus, young shoots of the
astragalus sinicus are sequentially picked to be used as vegetables, the rest remains in the field, and turning pressing is performed in the full-bloom stage to be used as
green manure of the
paddy field. The method disclosed by the invention takes into consideration the two functions of the vegetable and the
green manure of the
astragalus sinicus, prolongs a picking period of the
astragalus sinicus as the vegetable, reduces labor input in the picking process, improves a yield of the picked fresh astragalus sinicus, fully develops the vegetable function of the astragalus sinicus, increases the added value of the astragalus sinicus as the vegetable, and has the effect of returning the astragalus sinicus to the field to fertilize soil in the
paddy field; and the method has the characteristics of convenient operation, labor saving and time saving.