Cultivation techniques for supplying off-season alpine Dutch beans to fill the market

Dutch beans are sown in winter and harvested in spring, so there is little supply of Dutch beans on the market after June. The cultivation of Dutch beans with cool climate in alpine summer can make up for the off-season supply of Dutch beans. However, there is a difference between out-of-season cultivation and off-season cultivation of Dutch beans. Vegetable farmers should pay attention to the following three aspects.

Dutch bean

Choose the appropriate altitude. As a low-temperature crop, Dutch beans are not resistant to high temperature. The disease of Dutch bean in high temperature environment is serious, the yield is low and the quality is poor. Alpine Dutch beans should also be planted in places that are not hot in the middle of summer. According to the law that the temperature drops 0.6 ℃ per 100m above sea level, planting in high mountain areas is generally suitable for planting at an altitude of 600m to 800m.

Choose the right variety. Semi-trailing Dutch bean varieties can choose Japanese Xiabang pea and Yinu No.2, while trailing Dutch bean varieties can choose Taichung No. 11 and Japan's Matsujima No. 30. These varieties are resistant to disease, strong branching and heat-resistant.

Select the appropriate sowing time of Dutch beans. There are more Rain Water in spring and summer, which affect the flowering and pod formation of Dutch beans, so the flowering period of Dutch beans should be arranged after the end of the rainy season. therefore, the sowing time of Dutch beans should be from mid-May to early June. Sowing in the mountains with an elevation of 600 to 800 meters in late May and above 900 meters above sea level, sowing in mid-May.

Choose the suitable cultivation method of Dutch bean. Ploughing the soil before sowing, apply 1000-1500 kg organic fertilizer per mu, and then make a bed with a height of 40 cm and a width of 100 cm. Open a small ditch in the middle of the border, sow 2-3 Dutch bean seeds per hole according to the plant spacing, and plant them in a single row.

Reasonable topdressing: rotten organic fertilizer can be applied at seedling stage, available nitrogen fertilizer can be applied twice at budding stage, and the mixture of potassium dihydrogen phosphate and urea is sprayed every two times. Timely spraying boron and molybdenum fertilizer, spraying green Fenwei No. 1 or spraying Shibao every 8 to 10 days will help to increase the yield of Dutch beans; for trailing varieties, when the seedlings of Dutch beans grow to about 20 cm, pay attention to timely insertion pole stand; pest control. Seed dressing with carbendazim plus Jinggangmycin before sowing can prevent Dutch bean root rot, and spraying at 5-6 days interval can control brown spot and powdery mildew. After budding, attention should be paid to the control of leaf miner, bean pod borer and aphids.