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吉林省位于寒冷地区,而通化地区是更为寒冷的高寒山区。年平均气温4.℃,最低气温-37.2℃,有效积温2739.6℃无霜期120天左右,在这种自然条件下,只能种植一些早、中熟葡萄品种,而且由于积温少,无霜日少,葡萄的质量难以提高。为使高寒山区酿造葡萄的质量得到进一步提高,我们于1985—1987年在吉林省通化地区柳河县搞了“地膜覆盖对高寒山区酿造葡萄生长发育、产量及质量影响”的试验研究,现将三年材料整理如下,供生产者参考。
Jilin Province is located in a cold area, while Tonghua is a colder alpine mountain area. The average annual temperature of 4. ℃, the lowest temperature of -37.2 ℃, the effective accumulated temperature of 2739.6 ℃ frost-free period of 120 days or so, in this natural conditions, only some early and medium-ripe grape varieties, but also because of the accumulated temperature less frost- Grapes difficult to improve the quality. In order to further improve the quality of the grapes in the alpine mountains, we conducted a pilot study of the effect of plastic film mulching on the growth, yield and quality of the grapes in alpine mountainous areas in Liuhe County, Tonghua District, Jilin Province from 1985 to 1987. Now, The following year’s materials are compiled for reference by producers.