Q.Peas
I have planted peas in the same spot 3 years in a row. I had good crops the first two years but this year the plants are small and poorly colored.i had tulips in the same spot overwinter and also had poor results. Any ideas?
A soil test is a valuable test to determine the quality of your soil.
Your County Extension Office can help you with a soil test for small fee.
https://www.gardeningknowhow.com/extension-search/
There can be different reasons for poor results with your plants, pest, disease, and environmental causes. Peas are a cool weather crop and if the weather is too warm, they will not generally do well.
These articles have more information on growing Peas.
https://www.gardeningknowhow.com/edible/vegetables/peas/how-grow-peas.htm
https://www.gardeningknowhow.com/edible/vegetables/peas/yellowing-pea-plants.htm
https://www.gardeningknowhow.com/edible/vegetables/peas/pea-plant-diseases-and-pests.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/improving-garden-soil.htm