The planting and management method of multi-pod setting of beans

Beans difficult to manage is a lot of vegetable farmers know, easy to steep long difficult to sit pod, even falling flowers and pods from time to time, then what is the reason for the difficult to sit pod? 1. Planting density should be reasonable. The best planting age is when the heart leaves of bean seedlings are just unfolded. Beans reasonable row spacing is generally 60 cm, 80 cm, frame height 1.8~2 meters, the higher the row spacing should be larger, plant spacing about 45 cm, generally double planting. If the planting density is too high, it will cause excessive growth of bean plants and difficulty in sitting pods. Second, the temperature difference between day and night should be controlled to ensure that the beans have strong heat resistance and are not resistant to freezing. The suitable growth temperature is 20℃~25℃. During the flowering and pod setting stage of beans, the temperature in the day and night and the temperature difference between day and night should be well controlled. The suitable growth temperature for flowering stage of beans should not exceed 30℃ in the day and 18℃ at night. Therefore, remind each bean grower to put a good time to open the shed, to delay the opening time with the increase of temperature, the standard of opening the shed during the flowering and pod setting period of beans is that the greenhouse temperature reaches 17℃. Third, the light conditions should be suitable for greenhouse planting bean varieties although the requirements for the number of hours of sunshine are not strict, but the requirements for light intensity are relatively high, especially during the flowering and pod setting period, if the light is insufficient, it will cause the beans to fall. Fourth, soil moisture and nutrients should be appropriate depending on the local soil moisture, flexible control of watering time and watering amount. The most basic water for the whole growth period of beans should be three times: after planting, the first watering must be thoroughly watered, otherwise the plants will be uneven; when the vine grows to 0.6 meters high, the second water should be poured; the most critical thing for bean production is not to irrigate the pods, and it is not suitable for watering at the full flowering stage of beans, so the third water should be poured before the initial flowering stage, and combined with watering spray flower and fruit protection agent, which is more conducive to bean flowering and pod setting. After sitting pod should be poured a small water, promote bean expansion elongation. In addition, nitrogen fertilizer should not be applied unilaterally, otherwise it will cause excessive growth of bean vine leaves and delay flowering and pod setting. Phosphorus fertilizer should be added to promote the formation of nodules and enhance their nitrogen fixation ability.