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地膜覆盖栽培是增温促苗、增加农作物产量的一项重要新技术。近年来,我国这项技术推广给农业生产带来了明显的经济效益。微薄地膜是一种比地膜更薄的膜,因此,单位面积上的用量可比地膜更少,因而成本更低。为了探明这种微薄地膜的使用效果,1983年10月中旬,我们用宜黄县塑料厂生产的微薄地膜,进行油菜育苗试验,对这种微薄地膜的增温保温效果和经济效益作了初步探讨。现将试验结果报告如下:
Film mulching cultivation is an important new technology to increase temperature and promote seedling, increase crop yield. In recent years, the promotion of this technology in our country has brought obvious economic benefits to agricultural production. A meager film is a film that is thinner than a film, so the amount per unit area can be less than that of a film, thus making the cost less. In order to find out the use effect of this meager film, in mid-October of 1983, we used the modest film produced by Yihuang Plastic Factory to carry out rapeseed nursery experiment, and made preliminary preliminary research on the effect of increasing temperature and keeping warmth and economic benefit of this meager film. Discussion. The test results are reported as follows: