玉米大垄双行覆膜配套栽培技术（简称五米大双覆）是一种以节水保墒，争光增温为特点的具有多功能、多效应、科技集成度较高的栽培模式。其主要配套措施：一是变小垄单行种植为大垄双行种植；二是变裸露种植为覆膜种植；三是变造区种植品种为越区种植品种；四是变中耕栽培为免 Corn wide ridge double-line film supporting cultivation techniques (referred to as the five-meter double-covered) is a water-saving moisture, glazing warmed with multi-function, multi-effect, high integration of science and technology cultivation mode. The main ancillary measures are as follows: First, the smaller ridge single-line planting for the two-lane planting of large ridge; the second is the bare planting for plastic film planting; the third is the transformation of the planting varieties for the cross-planting varieties;