weedemart
Well-Known Member
it's funny to hear N toxicity is bad but it's as bad as any nutrients in excess.... there's no point here. you lack of X , you feed with X until plant recover.it's not complicated, you dont need a chart. for info, the most toxic form of N in soil/soiless is nitrate. If you have a high nitrate content in your nutrients, it's better for hydroponic. At the opposite , if you have a high urea content in your nutrients , its better for soil. the main reason is the difference in the decomposition/absorbtion of both by plants.