green-yellow shoulder on tomatoes. the main cause seems to be an imbalance in fertilizers, causing a lack of potassium

agriculture branch bunch care close crop cultivate disease farm farming fertilizer field food fresh fruit garden gardening green greenhouse growth harvest healthy immune system nature organic plant potatoes prevention problem red ripe shoulder tomato tomatoes unhealthy unripe vegetable yellow greenyellow main cause imbalance fertilizers causing potassium affected longlife varieties