I want to know the answer to the following question:
What event led to larger crop yields in the High Middle Ages?
All the background I'm provided with is that "Manorialism, the organisation of peasants into villages that owed rent and labour services to the nobles, and feudalism, the political structure whereby knights and lower-status nobles owed military service to their overlords in return for the right to rent from lands and manors, were two of the ways society was organised in the High Middle Ages.". Is that enough to answer the question?
Answer: no