无土栽培一般可以避免由土壤引起的病虫害,但要非常注意清洁卫生,否则也会造成感染,蔓延迅速。尤其是基质要消毒清洗,培养槽也要定期用甲醛液或氢氧化纳和三氯苯酚钠溶液消毒。用做微量元素的硫酸铜在营养液中能起阻止藻类和真菌生长的作用。当气候潮湿时,许多植物会发生立枯病,它是由土壤中真菌引起的,有时这种真菌也存 Soilless cultivation generally avoids pests and diseases caused by the soil, but pay great attention to hygiene and sanitation, otherwise it will cause infection and spread rapidly. In particular, the matrix should be disinfected and cleaned, and the culture tank should be disinfected regularly with formaldehyde solution or sodium hydroxide and sodium trichlorophenoxide solution. Copper sulfate used as a trace element can play a role in preventing the growth of algae and fungi in the nutrient solution. When the climate is wet, many plants will experience blight, which is caused by fungi in the soil, and sometimes the fungus