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沈阳市蔬菜技术推广站于去年大白菜生产期间,在近郊蔬菜基地长青村四队、东塔村科研队、东窑村三队等三个基点组织了大白菜根外喷施钙肥的试验网点,取得了较明显的经济效果.做法是:在9月10日到10月上旬,即白菜进入莲座期之后到结球中期,每隔5～7天在根外喷施0.5%氯化钙(CaCl_2)和50ppm赖氨酸的混合水溶液,前后喷施4～5次,其它按正常管理.
Shenyang City Vegetable Technology Promotion Station During the production of Chinese cabbage last year, the experimental sites of calcium fertilizer sprayed on the roots of Chinese cabbage were organized at three basic points: the four greenhouses of the vegetable base in the suburbs, the research team of Dongta Village and the third team of Dongyao Village , Achieved a more significant economic effect.The practice is: in September 10 to early October, cabbage into the rosette period after the middle of the ball, every 5 to 7 days in the root spray 0.5% calcium chloride ( CaCl 2) and 50ppm lysine mixed solution before and after spraying 4 to 5 times, the other under the normal management.