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地膜的再次利用,就是早春地膜覆盖种植的当季蔬菜采收完毕后,不再揭膜翻耕,就原状和以整修再播(栽)种下季作物。这样连种两季不同的蔬菜,使地膜覆盖后不造成后期的浪费,发挥更大的效益。一、近年来,地膜覆盖种植,在我地发展虽然很快,但地膜覆盖后的利用程度还不够。据调查,地膜覆盖种植一季蔬菜后的破损率只有10-15％(指未做过天膜的新地膜)。85-90％定好的地膜都不再使用而翻耕掉,造成极大浪费。为了证实地膜再次利用的效果,我们于85和86两年在南湖乡菜科所开展了这项试验工作。二、86年(85年的数据只作参考),我们选择
Re-use of plastic film, that is, the early spring plastic film mulching seasonal vegetables harvesting is completed, no longer uncovering tillage, the original state and to replanting (planting) planting the next crop. This kind of even two seasons of vegetables, so that after the film does not cause the latter part of waste, play greater benefits. First, in recent years, plastic film mulch planting, although in my development is very fast, but the degree of utilization of mulch is not enough. According to the survey, the damage rate of planting vegetables after planting a quarter of mulch is only 10-15% (referring to the new mulch without membrane). 85-90% set a good film are no longer used and plowing out, resulting in great waste. In order to confirm the effectiveness of the re-use of the plastic film, we carried out this experiment at Nanhu Township Branch in 1985 and 1986. Second, 86 years (85 years of data for reference only), we choose