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塑料薄膜育苗在水稻生产上的应用,对争取农时,提早插秧,推广晚熟高产品种,增加水稻产量,起了显著作用。塑料薄膜用量比较多的是聚氯乙烯和聚乙烯两种。目前,石油化工工业飞跃发展,为聚乙烯树脂开辟了广泛原料来源。为了满足农膜大量需要,除了扩大生产、提高塑料薄膜质量外,还必须在水稻育苗中千方百计提高塑料薄膜的利用率,以达到保证多育壮秧,多插一期苗,增加产量,降低成本的目的。通过调查,提高塑料薄膜利用率的途径是:增加塑料薄膜有效利用面积;保证
The application of plastic film seedling in rice production has played a significant role in obtaining early planting of rice, popularizing the late-maturing high-yielding varieties and increasing the yield of rice during the period of gaining agriculture. The amount of plastic film is more PVC and polyethylene two. At present, the rapid development of the petrochemical industry has opened up a wide range of raw material sources for polyethylene resins. In order to meet the needs of a large number of plastic sheeting, in addition to expanding production and improving the quality of plastic sheeting, it is also necessary to make every effort to improve the utilization rate of plastic sheeting in rice seedling raising so as to ensure that more seedlings are planted, more seedlings are inserted, the output is increased, and the cost is reduced the goal of. Through investigation, ways to improve the utilization of plastic film are: to increase the effective use of plastic film area; guarantee