Q.Low Yield On Cucumber And Pumpkin Vines
My vines look healthy, blossoms are numerous but fruit yields are minimal. What can I do to increase the number of blossoms that actually turn into fruit?

Certified GKH Gardening Expert
There could be a few things going on, here. If these are outside, then lack of pollination will not be the issue. If they are indoors, then this can be the case.
I would test the soil. There could be phosphorus and potassium deficiencies, or there could be a pH imbalance. Sometimes, too much nitrogen in the soil can cause this as well. This will be the first suspect for outdoor grown cucurbits.
Here are some articles that will help:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm
https://www.gardeningknowhow.com/edible/vegetables/cucumber/tips-for-growing-cucumbers.htm