It's possible to survive without roots. However, if it is directly planted in the soil for cultivation, it is basically impossible to feed it. The best way is to put it in water, wait for it to take root, and then soil culture. In addition, if disrelish troublesome, also can use cuttage method, will feed it.
1. Hydroponics: if the fleshy parts without roots are normal, this method can be used to feed them. First trim its bottom and remove some leaves. Then put it in rooting water and soak for about 30 minutes. After that, prepare a container and fill it with some water. Then place it at the mouth of the bottle so that its bottom slightly touches the water surface. It will take root soon.
2. Cutting: select some leaves with good growth from the plant and put them on the surface of some wet and soft flower soil. Then place the flowerpot in a warm environment and provide some light sunlight. After that, it will be cured slowly. If the soil is found to be dry, spray it with some water. After such a period of time, it can also grow roots and survive.
