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采用地膜覆盖技术,增产效果明显,可使粮、棉、油、菜产量大幅度提高,也可提早作物播种和收获时间,提高复种指数,增加经济效益,对生产发展起了很大推动作用。为了摸索地膜覆盖技术在制种生产上的效果和规律,我们从1982～1984年做了试验,认为它是一项经济有效、切合实用地增产措施。一、地膜覆盖在制种上应用的几点主要作用 1.可提早制种田播期,使过去因错期长无法制种的组合就地制种。
The use of plastic film mulching technology has obvious stimulation effect and can greatly increase the output of grain, cotton, oil and vegetables. It can also increase the sowing and harvesting time of crops, improve the multiple cropping index and increase the economic benefits, which plays a significant role in promoting the development of production. In order to explore the effect and regularity of plastic film mulching on seed production, we conducted a trial from 1982 to 1984 and considered it to be a cost-effective and practical measure to increase yield. First, the plastic film mulching in the application of a few key roles 1 can be early sowing date, so that the past due to a wrong combination of long-term seed production.