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莴笋为菊科莴苣属1~2年生蔬菜,是莴苣的一个变种,由叶用莴苣选择培育而来,喜湿润冷凉气候。莴笋品质脆嫩,具清香味,富含叶绿素,是人们喜爱的蔬菜之一。甘肃省民乐县地处祁连山北麓,海拔较高,气候冷凉,日照充足,昼夜温差大,是莴笋夏季种植的理想区域。2010年笔者与民乐县丰盛专业合作社一起在海拔2 300 m的地区试种莴笋,采用全膜覆盖延期30天或60天,于5月上旬或6月下旬播种,7月中下旬或9月下旬收获上市。表现产量高,品质好,可在淡季供应市场,取得了较好的经济效益,对当地的高原夏菜种植起到了示范带动作用。近几
Asparagus lettuce lettuce is an annual or two-year-old vegetables, is a variant of lettuce, lettuce selection by the leaves cultivated, hi moist cool climate. Lettuce crisp quality, with aroma, rich in chlorophyll, is one of the favorite vegetables. Minle County, Gansu Province is located in the northern foot of the Qilian Mountains, higher elevation, cold climate, adequate sunshine, large temperature difference between day and night, is the ideal area for lettumeric summer planting. In 2010, the author together with the abundant professional cooperatives of Minle County try lettuce in the area of 2,300 m above sea level, and cover with the whole membrane for an extension of 30 days or 60 days, sowing in early May or late June, late July or late September Harvested listed. Performance of high yield, good quality, can be supplied in the off-season market, achieved good economic returns, the plateau summer vegetables have played a pilot role in promoting. Recent