1. Sow directly in the ground, the plant diseases and insect pests that soil transmits is more, ground temperature is inferior, moisture and humidity are controlled not easily, affect gemmiparous rate.
直接播在地里，土壤传播的病虫害较多，地温较低，水分和湿度不易控制，影响发芽率。
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2. Sow directly in the ground, the plant diseases and insect pests that soil transmits is more, ground temperature is inferior, moisture and humidity are controlled not easily, affect gemmiparous rate.
