与夏季蔬菜换茬相比,冬季蔬菜换茬时间短、不良环境多,因此换茬之后出现的问题也多。由于连年种植、大量施肥,大棚土壤富营养比较严重,并且部分菜农由于选购肥料以及施肥方式不得当,造成了土壤物理性状的改变,对蔬菜生长也产生了不良影响。所以,在这里给菜农提几点建议:建议一:犁底层一定要打破由于连年种植,使用旋耕机等机械 Compared with the summer vegetable stubble, winter vegetable stubble time is short, more adverse environment, so there are many problems after stubble. Due to successive years of planting, a large number of fertilizers, greenhouse eutrophication is more serious, and some farmers due to the purchase of fertilizers and fertilizers are not properly, resulting in changes in soil physical properties, have an adverse effect on vegetable growth. Therefore, here are some suggestions to the vegetable farmer: Suggest one: plow the bottom must be broken due to years of cultivation, the use of rotary tiller and other machinery