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按照传统的生产习惯,早春莴笋一般采用露地栽培,收获期比较晚,不仅不能及时满足市场需要,而且经济效益也很差。为了打破这个传统,达到提前收获,增加产值的目的,我们于1986年10月至1987年3月,在本乡归泾村朱介生产队开展了早莴笋地膜覆盖栽培试验。结果表明,地膜栽培不但有一定的增产作用,还可以比露地栽培提早采收7～9天,经济效益显著。这一试验的成功,为菜区今后大面积推广早莴笋覆盖地膜栽培技术提供了科学依据。
In accordance with the traditional production habits, early spring lettuce generally open-field cultivation, harvest relatively late, not only can not meet the market needs in a timely manner, but also poor economic efficiency. In order to break this tradition and achieve early harvest and increase output value, we conducted the early lettuce mulching test from October 1986 to March 1987 in Zhujing Production Team, Jingjing Village, our hometown. The results showed that plastic film mulching not only increased yield, but also harvested earlier than open field cultivation for 7-9 days with significant economic benefits. The success of this experiment provides scientific basis for large-scale popularization of early lettuce covering plastic film cultivation technology in the future.