几年前,人们对在南方搭建大棚种菜提出了异议,说南方气温高,塑料大棚仅仅只能利用冬季短短的几个月,得不偿失。可是,目前南方各地如上海、杭州、南京、深圳、广州、珠海、厦门等城市郊区的大棚和温室越建 A few years ago, people raised objections to setting up greenhouses in the south. They said that temperatures in the south are high and that plastic greenhouses can only take advantage of winter months for a few months. However, the more southern suburbs such as Shanghai, Hangzhou, Nanjing, Shenzhen, Guangzhou, Zhuhai, Xiamen and other suburbs of greenhouses and more construction