推广农膜覆盖技术，发展立体种植，提高了复种指数，增。了效益，促进了“二高一优”农业的发展。近年来，淮北平原推广间套混种模式栽培，主要形式有如下几种。一、瓜存棉种植方式西瓜干2月中、下旬大棚育苗，3月下旬到4月初大田移栽，采用地膜、小弓棚覆盖栽培。以2采或3来弓 Popularize agricultural plastic cover technology, develop three-dimensional planting, raise multiple cropping index, increase. Benefit, and promoted the development of “two high and one excellent” agriculture. In recent years, Huaibei Plain to promote intercropping mixed mode of cultivation, the main forms are as follows. First, the way of planting melons Watermelon dry in February, late nursery nursery, late March to early April field transplanting, the use of plastic film, covered with small bow shed cultivation. Take 2 or 3 to bow