ceremony. we celebrate harvest of every other crop. ceremony. we celebrate harvest of every other crop- every other crop. yams play a central role every other crop. yams play a central role within every other crop. yams play a central role within the - every other crop. yams play a | central role within the cultural celebrations. central role within the cultural celebrations. yam is like a main meal in nigeria. celebrations. yam is like a main meal in nigeria. yam celebrations. yam is like a main meal in nigeria. yam is - celebrations. yam is like a main meal in nigeria. yam is what. celebrations. yam is like a mainj meal in nigeria. yam is what we celebrations. yam is like a main - meal in nigeria. yam is what we used to signify every other harvest. amongst the festivities food, dancing and masquerades, with a huge emphasis on dress as part of the culture. you re live with bbc news. extreme weather is causing problems in several parts of the world. many countries are bracing