>>5067746The most limiting nutrient for plants is Phosphorus and you will need it yes or yes. Secondary and primary Plant growth depends 90% of phosphorus.
So, if you want to grow something every year you will need fertilizers.
Also you can live without vitamin and mineral deficiency only eating potatoes and eggs, you don't have to grow very needed plants like corn or lettuces.
Potatoes are the easiest plant to grow.
