After a long conversation with Zhao Hai, Hu ding and the others were fully immersed in their research. No research was independent, just like Zhao Hai's research on changing the desert environment. It was not as simple as the research on the bottle tree. It involved many other things, such as other plants.
The bottle tree could release water, but whether other plants could store the water and make use of it to the greatest extent was the key.
If the plant did not make good use of the water released by the bottle tree, the water would quickly seep into the ground. The grass would still be dry, so the bottle tree would continue to release the water. It would not take long for the water to disappear from the bottle tree. Therefore, Zhao Hai and the others had to study the plants that were compatible with the bottle tree.