一、塑膜大棚菜地的土壤特点 1.土壤盐分高,土壤溶液浓度大设施菜地由于人为因素,气候环境与露地有显著差异,设施栽培的土壤受不到雨水的淋溶,在高温多湿条件下,土壤特性发生了很大变化,最大的特点是土壤盐分高,土壤溶液浓度大。设施地的土壤由于温度的升 First, the plastic film shed vegetable soil characteristics 1. Soil salinity is high, the concentration of soil solution facility vegetable ground due to human factors, climate and open field have significant differences, facilities cultivation of soil can not be leached by rain, in hot and humid Under the conditions of soil properties have undergone great changes, the biggest characteristic is the high soil salt, soil solution concentration. The soil of the facility is due to temperature rise