地膜覆盖后再连续兔耕覆盖栽培两茬菜，生长周期长达9－12个月，因在原地膜地的基础上栽培，故栽培技术应立足第一茬，抓好后两茬，做到以下几点。l轮作炕土，搞好茬口品种布局各茬菜均要实行3年以上的轮作，以减少土传病害，避免土壤养分缺失，利于各茬菜生长发育。在开始整地 After continuous cultivation of plastic film mulching cultivation of two crop, the growth cycle of up to 9-12 months, due to the original film on the basis of cultivation, so cultivation techniques should be based on the first crop, do a good job after the two crop, so below What time? Rotation of kang soil, do a good crop stubble layout of the stubble crops should be implemented more than 3 years of rotation, in order to reduce soil-borne diseases, to avoid the lack of soil nutrients, conducive to the growth and development of each crop. At the beginning of site preparation