Has anyone tried the root grafting technique, and how successful is it? See the attached pictures. I found them on a Chinese website:
http://bbs.shuiguobang.com/thread-173802-1-1.html
It seems to make a lot of sense. I searched here, but didn't find any report. I have many roots still buried in the ground, cut off from half-buried pots which I have moved into garage. Before I try, I want to check it here first.

Can you read that language? what does it say?

For the sake of it, I am going to try... then, keep inside and warm, you say?   my tree out there has many roots, it shoudl not mind me taking some... this makes sense, if the graft is sucessful, however, I would think the cutting needs to have some leafing or tip bud, no?

Yes, I can read Chinese, but the thread didn't say much. It said that he just did it, he's going to bury them in sand, and he would see what's going to happen. Some people suggested they should be kept in water, or damp soil.

I could nor resist the temptation, if I can get ahead in the rooting process, why not try? I did in 4 cuttings, and put it back in their rooting chambers...  I imagine the root will be fine, what I want to learn is what is the 'magic' that bonds one to another?  Soon I see rooting eyes,  i have to cup plant them..and will find out when it is time to graduate them to the larger pots.   

I doubt it folks,
The cambium of the scion and stock are welding together in a regular graft. In this case, the root is a part of the plant that does not have cambium, so there is nothing to splice together.

it is my hope the experiment  will not kill my cuttings...