1. Choose good varieties of Changbai Green Onions.
2. Choose a deep soil, fertile soil, well-drained land, and deep plowing, generally deep plowing more than 30 cm, digging depth 20-30 cm, width 15-30 cm above, ditch 70-80 cm wide Ridge to earth. Fertilize before planting, Mushi coarse fat 1000-5000 kg, and then deepen the ditch, so that the combination of dirt.
3, when planting onions to be planted in shallow depths, so that later soil in phases. Generally, the plant spacing is 1 cm, and the buried soil is about 8 cm. Before planting on the green onion to be selected, select the stem about 1 cm thick, 3 to 4 leaves, 30 to 40 cm high, no pests seedlings.
4, strengthen the cultivation and management. After planting until the beginning of autumn to slow seedlings over the summer period. In the semi-dormant state, the cultivator should be strengthened to protect the roots, and the roots should be developed. When the plants reach the white dew before the beginning of autumn, the plants enter the peak period of the leaf, and the fertilizer and water management must be strengthened from about the end of August to the end of September. 15 kg of urea, timely dressing after dressing, soil cultivation, irrigation, after the white dew festival into the light green period, fertilization mainly available nitrogen fertilizer, watering should be ground pouring, heavy pouring, often keep the soil moist, to meet the needs of light green growth.
5, combined with cultivator soil. Before the onset of the rainy season, the ridges should be raised slightly out of the ridge to prevent rootstock from rotting due to stagnant water in the planting channels. 10-15 days after the beginning of autumn to cultivate a soil, soil is an effective measure to increase the length of light blue, a total of 3-4 times. For the first time, we must train lightly in order to increase the temperature of the earth, and after two more days of cultivation, especially the last time we should try to cultivate as much as possible, but we must not exceed the heart.
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