Green stems are planted in different seasons and different varieties are required. If sowing in the winter and early spring when the temperature is low, cold-resistant, late bolting varieties should be used, such as slow in April in Shanghai, spring and cabbage; heat-resistant and weather-resistant varieties should be selected in summer sowing, such as D94 cabbage and dwarf feet. Black leaves for higher yields.
Green stem dishes can be directly seeded and transplanted in two ways.
(1) Live air temperature is high in summer, and green stalks grow fast. At the same time, the density of planting in summer is large. Live broadcast methods are generally used. The amount per mu is about 250 grams. Sowing should be done carefully to make the seedlings grow evenly; avoiding seeding too densely, wasting seeds, increasing the workload of the seedlings, and the seedlings are delicate and unfavorable to growth. Sowing can be used for sowing or drilling, on demand.
(2) When the seedlings are transplanted and nursed, the area of ​​seedlings is small, which facilitates fine management, which is conducive to nurturing strong seedlings and then transplanting them to Daejeon. Seedling transplantation can save seeds, and the amount of seed per mu is only 100 grams, and the yield per plant is high and the quality is good. Generally in the places where the land is small and the labor is relatively concentrated, or in autumn and winter, the suitable season for the growth of pakchoi is to adopt seedling transplants. The general acreage is 25 days. The colonization of planting plants uses 16 cm 16 cm to 22 cm 22 cm. The higher temperature can be properly planted, and the cooler climate can be used for wider plant spacing.
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