Cultivation techniques of Spring Bean covered with plastic Film

(1) Variety selection: at present, the widely cultivated variety of bean is cowpea 28-2, which can be used for plastic film mulching cultivation in spring. (2) sowing date: the suitable lower temperature for sowing bean is 14 ℃, and the sowing temperature should be 4 ℃ before and after frost breaking. Sowing beans can be sown in the same way as kidney beans (kidney beans), sowing with high ridges and low holes and then covering with plastic film. The row spacing is 65 cm, the hole spacing is 18 cm, 5000 holes are sown per mu, 2 seeds are sown in each hole, and the sowing rate is 2 kg. (3) Field management: the lateral buds below the first inflorescence and the flower buds above the first inflorescence were erased and the leaf buds in the mixed buds were born at the same time; the middle and upper lateral branches topped after seeing the flower buds. At the same time, pay attention to the main vine climbed to the top of the shelf in time to hit the top of the main vine, stimulate the growth of the side vine, the side vine still hit the top after seeing the flower bud. (4) harvesting: beans are harvested in time after the pods are long enough. Delayed harvest not only reduced the commodity quality, but also affected the pod growth in the future. Be careful not to hurt other inflorescences, flower buds and vine leaves during harvest.