论文部分内容阅读
宾县位于黑龙江省的南部,东经127°21’,北纬45°41’,海拔192.2米。始霜期9月27日,终霜期5月13日,无霜期138天。大田生长期积温2800℃左右,降雨量450—560毫米,大田生长期日照1650—1700小时。地势丘陵,土质为黑黄沙土壤、棕壤土。由于温度低,无霜期短,有人认为不能繁育烤烟种子,因此,自种植烤烟以来,一直依靠从外地调种。调入的种子曾多次出现过混杂,烤烟的产、质
Bin County is located in the southern Heilongjiang Province, east longitude 127 ° 21 ’north latitude 45 ° 41’, 192.2 meters above sea level. The initial frost period September 27, the final frost period May 13, 138 frost-free period. Field growth temperature of about 2800 ℃, rainfall 450-560 mm, sunshine in the field growth period 1650-1700 hours. Hilly terrain, soil is black and yellow sand soil, brown soil. Due to the low temperature, frost-free period is short, some people think that flue-cured tobacco seeds can not be bred, therefore, since planting flue-cured tobacco, has been relying on planting from the field. Transferred seeds have repeatedly appeared mixed, flue-cured tobacco production and quality