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1 选择抗病、耐病品种 如早青一代、阿太一代、天津25号等。 2 种子处理 播前3～5天,用温水浸种,将种洗净,捞出种子用湿布包好,催芽温度25℃～30℃,1～2天芽长3～4毫米待播。 3 苗床准备及播种 2月中旬用小拱棚或阳畦育苗。准备苗床,铺10厘米厚营养土。营养土配制:7份菜园土、3份腐熟圈粪、每立方米营养土加腐熟鸡粪15～25千克,过磷酸钙0.5～1千克,草木灰5～10千克。浇底墒水深7～8厘米,水渗后随即用小刀将苗
1 Select disease-resistant, resistant varieties such as early blue generation, A generation, Tianjin No. 25 and so on. 2 seed treatment before sowing 3 to 5 days, soaked with warm water, the species washed, remove the seeds with a damp cloth, sprouting temperature 25 ℃ ~ 30 ℃, 1-2 days bud length 3-4 mm to be broadcast. 3 seedbed preparation and sowing in mid-February with a small shed or Yang Cheng nursery. Prepare seedbed, shop 10 cm thick nutrition soil. Nutritional soil preparation: 7 parts of vegetable garden soil, 3 parts of rotten dung, each cubic meter of nutrition soil plus rotten chicken manure 15 to 25 kg, 0.5 to 1 kg of superphosphate, ash 5 to 10 kg. Water at the end of sowing depth of 7 to 8 cm, immediately after the water infiltration with a knife will Miao