Water wheel

Peasants, population, and plague Rural poverty was not the only result of inefficient farming methods and social inequality. It also resulted from the rapid growth of Europe?s population. China?s population fell because of the Mongol conquest Three-field system: farmers grow their crops on 2/3 of their land each year and panted the third field in oats which stored N2and rejuvenated the soil, and it could be used to feed plow horses. Pop. Growth also led to the foundation of new agricultural settlements.