由于管理不善,日光温室幼苗经常出现沤根和烧根现象,其产生原因及防治措施如下: 一、沤根沤根又叫烂根和萎根,病株根部发锈,表皮腐烂,不长新根,幼苗变黄、萎蔫。1.产生原因。①床土过湿,地温过低;②床土配制不良,粘土过多,透水性差;③播种前浇水过多,浇水后又遇上连阴天。特别是茄子最 Due to poor management, solar greenhouse seedlings often appear root and root burning phenomenon, its causes and prevention measures are as follows: First, the roots and roots also called rotten roots and wilting roots, diseased root rust, epidermal decay, not long new Roots, seedlings turn yellow, wilting. Cause ① bed soil is too wet, the ground temperature is too low; ② poor bed preparation, excessive clay, poor water permeability; ③ too much water before sowing, water and then encounter even cloudy. Especially eggplant most