The soil can be divided into the following items according to its character : plat ridge , high ridge , inside film and outside film 根据各地气候土质分为：平垅高垅里膜外膜覆盖栽培，保证生长茂盛。
Plasticulture may be defined as any system in which products derived from plastic polymers are utilized for the significant benefit of growing crops 塑料覆盖栽培可定义为用塑料产品使作物生产获得显著效益的栽培技术。
The rule system and system flow chart is compiled under the conclusions of wheat mulching cultivation knowledge on loess plateau 在对黄土高原地区小麦覆盖栽培知识归纳的基础上，形成了推荐小麦覆盖栽培方法选择的规则和系统流程。
Propose the research direction and emphasis of the farming in dry land covers technique : new solution plastic sheeting ' s researching and using ; the straw plastic sheeting compose the cover means and technique to be researched and spreaded ; the new chemistry covers stuff development together with application 同时提出今后旱地覆盖栽培技术研究的方向和重点是：新型降解地膜的研制和应用；秸秆地膜组合覆盖方式与技术研究与推广；新型化学覆盖材料的研制与应用。
