Q.how close we can plant fruit trees to pecan?
I planted 4 pecan trees with 50-60 feet space and want to plant some fruit trees and want to know how far apart from them to be safe from them.

Certified GKH Gardening Expert
This depends on the type of fruit trees. Some trees will have problems with being near pecans, as the roots can interfere, both physically, and chemically with your other trees. Some roots can extend out to 100 feet or more. Sometimes it can be safe to plant within 50 or 60 feet, but this will depend on the trees you intend to plant.
This article will give you more information: https://www.gardeningknowhow.com/edible/nut-trees/pecan/pecan-tree-toxicity.htm