What Causes Rot On The Bottom Of Tomatoes

Question

I have seen rot on the bottom of some of my tomatoes.I do not have any images

Answer 1

It usually is due to uneven watering. The plant's roots can take up calcium from the soil properly. It's not that there isn't enough calcium in the soil (rare) but that the roots can't take it up efficiently. Here is more:

https://www.gardeningknowhow.com/edible/vegetables/tomato/tomato-blossom-rot.htm