#1. Select all of the following that can cause diseases in plants:
Select all that apply:
#2. Black or brown soft mushy or slimy roots and is a sign of root rot. It is caused by over watering in soil and low oxygenation in hydroponic system
#3. Flushing soil or growing medium with water to remove the fertilize salts can mitigate over fertilization in soil.
#4. Changing the water and restarting with little or no nutrient can mitigate over fertilization in a hydroponic system.