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作者1978-1981年进行了6次玉米沙床育苗移栽试验,结果表明,比直播早种4-14天,早出苗14-25天,早熟5-18天;穗长长0.1-0.9厘米,秃顶少0.1-1.8厘米,穗粒数多21-99粒,千粒重高3-17.5克,亩产多99.3-206.7斤,增产17.3-36.8％。1.1立方米沙可做一个净面积0.02亩的苗床,能育苗2.4万株左右,供7亩大田用苗。按每亩3,000-3,500株计,只需种子1.7-2斤,比直播省种3-3.5斤。方法是:①整好苗床。先平整拍实床底,然后开围沟。床
The author conducted 6 transplanting experiments of corn sand bed seedling in 1978-1981. The results showed that the early seedling was 14-25 days earlier than the direct seeding 4-14 days, the early maturing was 5-18 days, the ear length was 0.1-0.9 cm, Bald less 0.1-1.8 cm, 21-99 grains per spike, grain weight 3-17.5 grams, yield more 99.3-206.7 kg, an increase of 17.3-36.8%. 1.1 cubic meters of sand can do a net area of 0.02 acres of seedbed, about 24,000 seedlings can be used for 7 acres of field seedlings. According to 3,000-3,500 per acre plan, only the seeds of 1.7-2 kg, than the direct broadcast provincial species 3-3.5 kg. The method is: ① whole seedbed. Ping first pat real bed, and then open the ditch. bed