内蒙察右前旗为高寒干旱区。1983年全旗遭受了旱、风、冻多种自然灾害,未覆膜的甜菜严重减产,而地膜覆盖的甜菜取得了好收成,比全旗历年平均亩产提高近两倍,含糖率也有所增加。地膜覆盖栽培甜菜能够增产增糖的原因有以下几个方面。 1.地膜能弥补无霜期短,早春土温低的弱点,为甜菜生长创造更有利的条件。 Inner Mongolia right front banner for the arid arid area. In 1983, the entire flag suffered various natural disasters such as drought, wind and freezing. The uncoated beetles severely reduced their output. The mulch-covered beet had achieved good harvests, nearly double the average yield per mu of the whole county in calendar years. The sugar content also Increase. Film mulching cultivation of sugar beet can increase the production of sugar because of the following aspects. 1. Plastic film can make up for the short frost-free period, low temperature in early spring weaknesses for the beet growth to create more favorable conditions.