甜菜总产取决于种植面积与单他面积产量两个因素之积。而提高单位面积产量则是发展甜菜生产的必行之路。国内外均有文献指出,播种时期对甜菜的产、质量影响很大。为了摸索齐齐哈尔市种植甜菜的适宜时期,以利提高甜菜单位面积产量及产糖量,于1982、1983连续两年进行了甜菜播期试验,现将结果综述如下。 The total beet output depends on the plotted area and the yield on a two-by-two basis. The improvement of yield per unit area is the only way to develop beet production. Literature both at home and abroad pointed out that sowing time has a great influence on the quality and yield of beet. In order to find out the suitable period of sugar beet cultivation in Qiqihar city and to improve yield and yield of sugar beet per unit area, beet seeding test was conducted for two consecutive years in 1982 and 1983, and the results are summarized as follows.