地膜“凹”型覆盖作物栽培,是在地膜覆盖栽培的基础上,对原平地铺膜改为垄沟“凹”型覆膜,作物栽培在沟坡或垄背上。地膜“凹”型覆盖能够充分接纳雨水和实施膜上灌技术,可以在地膜覆盖基本不增加投资的情况下完成,是一项技术简单,成本低廉,效益显著的新技术。地膜“凹”型覆盖的方法地膜“凹”型覆盖,是将准备覆膜的耕地 Mulch “concave” type of crop cultivation is based on the plastic film mulching, the original level of the film instead of furrow “concave ” type of film, crop cultivation in the ditch or ridge back. The mulch “concave” type of covering can fully absorb the rainwater and implement the film irrigation technology. It can be finished without increasing the investment of mulching film. It is a new technology with simple technology, low cost and remarkable benefit. Mulch “concave ” type of cover method Mulch “concave ” type of cover, is to be prepared to cover the cultivated land