[dghughes]

>“We didn’t see much difference in the radishes, to be honest, but the cucumbers and tomatoes are showing a great difference,”

Most above ground plants are easy it's the root vegetables that are hard to grow. You pile on nitrogen and the tops of plants grow, even root vegetables' top leaves grow but little of the root. Corn can be a pain it needs a lot of water and even more nitrogen.

Even if you have the perfect amount of nutrients and the pH is good for nutrient distribution a carrot can be stopped by a single pebble in the way or if the soil too compact.