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1989年,我们在栖霞县松山乡采用地膜覆盖技术繁殖了大白菜杂交种鲁白3号,取得了成功的经验。白菜亲本采用阳畦育苗,于1月3日播种,3月25日株苗定植于大田,6月13日收获种子。制种地面积17.2亩,其中露地栽培4.1亩,产种249.8公斤,折亩产60.93公斤;覆膜栽培13.1亩,产种1467.5公斤,折亩产112.02公斤,比露地栽培增产83.8%。实践证明,地膜覆盖繁殖大白菜杂交种是一种经济有效的增产措施,应予积极推广。地膜覆盖,提高了地温,保持了土壤水分,增加了株苗生长过程中的有效积温,加快了营养器官
In 1989, we used the mulching technique in Songshan, Qixia County to breed the Chinese cabbage hybrid Lu Bai 3 and gained successful experience. The cabbage parents adopted Yangba seedlings, sown on January 3, March 25 seedlings planted in the field, June 13 harvest seeds. Planting area of 17.2 acres, of which 4.1 acres of open-field cultivation, production of 249.8 kilograms, yielding 60.93 kilograms per mu; covered cultivation of 13.1 acres, 1467.5 kilograms of production, folding yield 112.02 kilograms, 83.8% more than the open field cultivation. Practice has proved that the film mulching of Chinese cabbage hybrid breeding is a cost-effective stimulation measures should be actively promoted. Mulching, raising the ground temperature, maintaining the soil moisture, increasing the effective accumulated temperature during seedling growth and accelerating vegetative organs