First press 2 meters wide, east-west direction is good (to facilitate the winter wind barrier), the ridge on both sides of the ridge from 15 to 20 cm high, and then apply 5000 ~ 7500 kg per mu of fully cooked soil miscellaneous fertilizer , and deep-dip, leveling the surface.
If it is to prepare for planting old calluses, the root plate at the bottom of the calluses should be removed first, and then the classification should be made according to the height and thickness of the calluses, and then the plant should be planted at a density of 30 to 40 trees per ditch. 15 cm, ditch 28 ~ 32 cm, the depth of colonization should not exceed the sheath. If the seedlings are planted with small seedlings, they will be planted when the seedlings are about 20 cm high and there are 3 to 5 true leaves.
After leeks are planted, they should be poured 2~3 times continuously to promote the survival of leeks. Each time after watering, 15-20 kg of compound fertilizer is applied per acre to promote the growth of the leaves, which lays a foundation for the growth of the pseudo stem stem and the growth of the root system.
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