In the process of planting and producing winter bean, it should pay attention to the following three aspects:

First, nursery. In the past, the production of beans was mostly broadcast, and Miao Qi Miao Zhuang was ensured on the basis of fully protecting the roots from cold damage. Early sowing, early harvest, and early morning market were possible. The production of more use of nutritional seedlings nursery, can also be used 50 hole plug seedlings, seeding 2-3 tablets per hole, irrigating the water, reasonable control of temperature. The seedling age is about 25 days or so.

Second, rational dense planting. As the seedlings grow at a low temperature and in a low light environment, photosynthesis is hindered and the nutrition of the plants themselves is limited, so they must not be too dense during colonization to prevent the leaves from blocking each other. Generally use 70 cm, 50 cm size ridge (or double high ridge) colonization, plant spacing of about 30 cm, watering after planting, and then scratching and then cover the entire film.

Third, field management. In the management of fertilizer and water, from transplanting to flowering, water control and cultivating roots should be used to promote rooting. Water should be kept as low as possible. Before the flowering of the beans, 15 kg of ammonium sulfate should be applied. During fertilization, fertilization is performed once every 10-15 days, each time 15-20 kg ammonium sulfate is applied. Conditional, after flowering, apply CO2 gas fertilizer every morning in the morning and apply proper ventilation for 2 hours after application. The senescence of the plants in the late growth period of the beans, and the aging of the roots, can prolong the scarring and spray 0.2% potassium dihydrogen phosphate for foliar application. After the bean vines reach the vines, the vines shall be erected in a timely manner. The vines shall be hiccuped and wiped in time to avoid light blocking between the leaves. When the plant height is 2-2.5 meters, it will be picked in time to promote scab. Pay attention to knock down the old leaves after each harvest.

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