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近年来，棚（室）蔬菜生 产中较普遍存在利用率低的 问题，在一定程度上导致棚 （室）生产效益下降，主要表 现（一）蔬菜茬口安排不当， 秋冬和早春栽培面积大，而 深冬栽培面积相对较少； （二）棚（室）蔬菜种植品种单 一、（三）多数大棚在夏秋季 处于闲置状态，不能做到周
In recent years, shed (room) vegetable production is more common in the low utilization of the problem, to a certain extent, led to greenhouse (room) production efficiency decline, the main performance (a) improper arrangement of vegetable stubble, autumn and winter cultivation area, (2) greenhouse (room) a single species of vegetable cultivation, (3) most of the greenhouse in summer and autumn in a state of idle, can not do weeks