1地块选择与整地施肥选择土壤保肥、保水,排灌水良好,前茬为非豆科作物且土壤中的残留植物根茎已充分发酵腐烂。土壤耕深20cm以上,并耙细、耙平。2播期选择毛豆发芽适温25℃,发芽最低温度15℃以上,温度低会造成烂种。因此,毛豆播种时,日均气温应稳定在15℃以上。生长适温为20~25℃,低于14℃不能开花。不同品种的毛豆生育期不一样。为此,播种时除根据毛豆生育期,当地常年平均气温外,还要考虑下 A selection of land and fertilization land preparation Soil conservation fertilizer, water, irrigation and drainage well, the former non-legume crops and soil residues of rhizomes have been fully fermented. Soil tillage more than 20cm, and harrow fine, flat rake. 2 sowing soybean germination suitable temperature 25 ℃, germination minimum temperature above 15 ℃, low temperature will cause rotten species. Therefore, soybean sowing, the average daily temperature should be stable at 15 ℃ above. Growth suitable temperature is 20 ~ 25 ℃, less than 14 ℃ can not flowering. Different varieties of soybean growth period is not the same. To this end, in addition to sowing soybean germination period, the local average annual temperature, but also consider the next