Hi, Ken, We are huge

Hi, Ken, We are huge proponents of aged cow manure, but sometimes even we can use too much of a good thing. Do a soil test to check the pH. You can do this with the beans in the ground. Then amend accordingly. The potential nutrient imbalances are many, so see what you're dealing with for soil content/value first, then look into additives.

The test is quick, easy, and inexpensive. A nursery, garden store, or coop extension should be able to help you—help you get one, read it, and resolve the matter.

Hope this helps. There's nothing like fresh beans.