This is the 3403rd most frequent Russian word.
почве
The word "почве" in English means "soil" or "ground" (in the dative or prepositional case, singular).
In this sentence, 'почве' is used metaphorically to mean 'ground' or 'basis,' indicating the cause of an event.
Он упал на почве усталости.
He collapsed due to fatigue.
Here, 'почве' literally refers to 'soil,' the physical ground which plants grow on.
На этой почве хорошо растут овощи.
Vegetables grow well in this soil.
In this example, 'почве' again takes a metaphorical use, referring to the 'grounds' or 'basis' of cultural differences as a cause of challenges.