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莱州市珍珠镇农技站自1984年承担了山东省农业科学院蔬菜研究所技术转让的山东7号大白菜杂交制种任务.由于胶州市地处胶东半岛,早春气温回升慢,在大白菜制种中存在早移栽因地温不足前期生长发育不良,推迟移栽期往往造成幼苗老化和受后期高温气候影响而减产的矛盾.针对这一矛盾,我们于1985年开始研究大白菜地膜覆盖制种技术.采用这一技术,实行早播早栽,使生育期提前,避免了后期不利气候的影响,取得了理想效果.1986年全镇480亩大白菜制种田,覆膜面积达到50%,平均亩产89公斤,
Laizhou pearl town agricultural station since 1984, Shandong Academy of Agricultural Sciences Vegetable Research Institute of technology transfer Shandong 7 Chinese cabbage hybrid seed production.Because Jiaozhou City is located in Jiaodong Peninsula, early spring temperature rise slowly, the Chinese cabbage There is an early transplanting due to lack of pre-term growth and development of poor soil temperature, delayed transplanting often caused by the aging of the seedlings and affected by the late high-temperature climate and yield reduction contradictions.According to this contradiction, we began in 1985 to study the cover of cabbage seed cover technology .Using this technology, the implementation of early sowing early, so that the growth period ahead of schedule, to avoid the adverse effects of late weather and achieved the desired results .680 acres of Chinese cabbage farming system, covering an area of 50%, average mu Produce 89 kilograms,