玉米大垄双行覆膜立体栽培是黑龙江省农牧渔业厅主持的省政府重点推广项目。其技术关键是,采用生育期较长的杂交种,催芽吸足水,垄上双行播种覆膜,合理增加密度,重施底肥,以肥保密,确保高产。实践证明,采用此模式栽培具有明显的增温、保墒和改善土壤理化性状,增产稳产。一般亩产750～1000公斤,高产纪录超过吨粮,较常规种植一般 Corn Ridge double line three-dimensional film covered cultivation is Heilongjiang Provincial Department of Agriculture, Animal Husbandry and Fisheries Department of the provincial government focused on promoting the project. The key technology is the use of longer-growing hybrids, Germination suck enough water, Ridge sowing two-line film, a reasonable increase in density, re-applied base fertilizer to fertilizer confidentiality, to ensure high yield. Practice has proved that using this model of cultivation has obvious warming, soil moisture and improve soil physical and chemical properties, increase yield stable. General mu produce 750 ~ 1000 kg, high-yielding record over tons of grain, than the conventional planting in general