我省地处高寒地区,作物生育期短,一般只能一年栽种一茬蔬菜,土地利用率低。如何在较短的生育期限内利用不同蔬菜不同生育时期对环境条件的不同要求,实行间作套种,通过育苗、移植、直播、地膜覆盖、小拱棚等不同手段,变一茬为多 The province is located in the alpine region, crop growth period is short, generally only one year planted vegetables, land utilization is low. How to take advantage of the different requirements of environmental conditions in different growth stages of vegetables in a relatively short period of growth and inter-cropping intercropping, through cropping, transplanting, direct seeding, mulching, small shed and other different means,