山东维坊市采种甜菜原地保护越冬栽培技术通常8月25日前后育苗,11月上、中旬盖膜,并在苗床北侧设立防风障,改善苗田小气候,于翌年2月中、下旬揭膜,定植时间可放宽到3月上旬至下旬,与窖藏春栽采种甜菜比,增产率可达25%以上,是一项值得推广的增产技术。 Weifang City, Shandong planting beet native protection overwintering cultivation techniques usually before and after August 25 seedling, cover in November on the middle, and in the northern side of the seedbed to establish windbreaks to improve the Miao microclimate in the following year in February, late uncovering , Planting time can be relaxed to early March to late, and the cellar spring planting sugar beet, the rate of increase of up to 25%, is a worthwhile promotion of stimulation technology.