1. Select loose, fertile, moist, well drained neutral or slightly alkaline sandy loam, and select seeds with plump particles, pure color and no impurities. 2. Soak the seeds with water one day before sowing, and then evenly spread them on the soil. After sowing, cover a thin layer of soil, pour some water, and compact them with a ballast. 3. It needs to loosen soil 3-4 times a year, combined with loosening soil and topdressing 3-4 times. The fertilizer is mainly farm manure. Always keep the soil moist, but do not pond, irrigation and timely drainage after rain
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