Broad bean planting history is earlier, but most of them are planted along the side of the roadside ditch, and often eaten with tender bean seeds and mature seeds as vegetables. The planting scale is small and scattered. Due to the adjustment of agricultural structure and the need for export trade in recent years, the planting area has been continuously increasing. In particular, the large white bean planting in Japan has a certain area, and a brief introduction to its cultivation techniques is made here. Broad bean is planted as a biennial herb with well-developed root system, stems upright and square hollow, branching from the rhizosphere, the main lateral branches are roughly the same, the leaves are alternately even-pinnate, compound flowers, racemes, and base of each wing Large dark spots, each inflorescence with 2-6 flowers, usually the first 1-2 flowers most can be scarred, the rest of the knot rate is very low, èš 6.6cm-14cm long, flat cylindrical. Seed germination has a short duration of up to 2 years. Broad bean growth adapts to a wide range of soil, the general soil can be cultivated, but requires deep soil, good drainage, avoid continuous cropping, can yield. Broad bean is a cross-pollination crop, and the different varieties of seed must be isolated to prevent natural hybridization and reduce purity. Broad bean seeds germinate at 5-6°C. The optimal temperature for growth is 16°C, the maximum temperature is 25-30°C, and the seedlings can tolerate -4°C frost, but can still suffer from -7°C frost damage. The base of the stem germinates and grows again. Broad bean differentiated flower buds below 15°C, flowers bloomed from bottom to top. When the lower pods developed rapidly, the flowers that were only open at the top were not able to scab. Therefore, it is feasible to pick hearts, concentrate nutrients, and reduce falling flowers. Japanese white beans are suitable for sowing in the middle or late October. Rice pods should also be planted before the end of October. The amount of seeds per acre should be about 10kg. The density should be 50cm, and the spacing between them should be 30cm. Each hole should be sown with 2-3 seeds. Soak the seeds with water for one night before planting. Do water absorption moderately, then mix phosphate fertilizer (about 10kg per acre) sowing, and do with the mix with the species, can not overnight. The sowing depth is 7-10cm. It should not be too shallow to enhance the cold resistance. The field management of Japanese white beans should be used for three main tasks of fertilization, topping, and disease prevention. First, fertilization: After sowing seedlings, apply 25kg of phosphate fertilizer per acre, full bloom about 20kg of compound fertilizer, and apply 5kg of urea per acre during the initial flood season. Second, topping: generally in mid-November to early December, when the main stem is more than 10cm, and the lower part has seen branches, the main stem should be picked up, because the main stem is not scarred or scarred, in order to promote branching Until the beginning of spring, it was found that the main stem still needs to be knocked out, leaving 3-4 branches and branches, and ineffective branches removed at flowering. When the fruit pods begin to swell, they should also be removed from the branches of the pods, so that 3-4 layers of fruit pods can be removed to promote the formation and enlargement of preserved pods. Third, disease prevention: due to the occurrence of heavy rust in Japanese white beans, it is necessary to open a good field trench system, so that the ditch matching, drainage flow, dry water, reduce the humidity in the field, reduce the incidence of disease. Once onset, 1,000 times of Triadimefon solution was used for prevention and control at the first flowering stage, full flowering stage, and early puerperium stage to control diseases, protect effective leaf area, and promote grain filling. It is necessary to pay attention to preventing early stage weeding and the damage of pests such as late locusts and leafminers, in order to capture the bumper harvest of large white beans.