The profit from planting walnut trees is about 3,000 yuan per mu.

If managed properly, the yield per mu of walnut trees during the fruiting period is about 500-600 kilograms, the wholesale price of thin-shell walnuts is about 10 yuan/jin, and the income per mu is about 5,000-6,000 yuan. The investment is about 2,000 yuan (excluding labor costs), and the net income is about 3,000 yuan. If you carry out under-forest farming (chickens, ducks, geese, cicadas, locusts, etc.) or under-forest cultivation (straw mushrooms, black fungus, etc.), your income can be further increased.

It is worth mentioning that walnut trees enter the fruiting stage relatively late. Even grafted walnut trees take 6-7 years to enter the fruiting stage. Ungrafted walnut trees reach the fruiting stage. Generally it takes more than 10 years.