播期是影响玉米产量高低的重要因素,它与作物布局及茬口安排有紧密联系。为了摸清华玉2号在汉江中游鄂中丘陵地区的适宜播期,我们进行了华玉2号的播期试验。试验设10个处理,即在3月25日至6月25日期间每隔10天播种一次,小区面积33.3米~2,每区定植188株,试验田为油砂土,土质 Sowing date is an important factor affecting the level of corn production, which is closely related to crop layout and crop arrangement. In order to find out the suitable sowing time of Huayu No.2 in the middle reaches of the Han River in Hubei Province, we carried out the sowing date test of Huayu No.2. The experiment set up 10 treatments, that is, sowing once every 10 days from March 25 to June 25, the plot area was 33.3 m ~ 2, and 188 plants were planted in each area. The experimental fields were oil sand, soil