Put angry words into angry words. To be honest, please choose suitable fine varieties and conventional varieties according to the local climate.
The climate in Lingnan is humid and rainy, so the northern walnut population is definitely not suitable. See if there are any well-behaved walnut trees in the local area. If there are, follow the path, buy them, expand them and develop steadily. If you can't find it, you are also advised to invest cautiously.