Depends on what angle you're viewing history from. Middle Age Europe was breaking down barriers in the ag sector. Equipment, Management, and Hybridization (plant and animal) were all revolutionized. That being said, Padraic's peasants were the labor force for all of this, and they didn't fare so well.
"European agriculture underwent a number of significant changes during the Middle Ages. Tools including the scythe and plow were improved from classical versions, a three field system of crop rotation was invented, and the moldboard plow and wheeled plow were increasingly used. Draft horses were bred and increasingly used as a working animal in many parts of Europe, while oxen continued to be used for this purpose. Metal horseshoes were widely adopted. Much of Europe had low population densities during this period, to which extensive farming was well-suited. In parts of Southern Europe, more intensive farming combined techniques continued from classical Roman agriculture and those transferred from Islamic regions. In the late Middle Ages, the use of manure as fertilizer increased, which in turn decreased the necessity of regular fallowing of fields."
http://en.wikipedia.org/wiki/History_of_...ure#Europe
"European agriculture underwent a number of significant changes during the Middle Ages. Tools including the scythe and plow were improved from classical versions, a three field system of crop rotation was invented, and the moldboard plow and wheeled plow were increasingly used. Draft horses were bred and increasingly used as a working animal in many parts of Europe, while oxen continued to be used for this purpose. Metal horseshoes were widely adopted. Much of Europe had low population densities during this period, to which extensive farming was well-suited. In parts of Southern Europe, more intensive farming combined techniques continued from classical Roman agriculture and those transferred from Islamic regions. In the late Middle Ages, the use of manure as fertilizer increased, which in turn decreased the necessity of regular fallowing of fields."
http://en.wikipedia.org/wiki/History_of_...ure#Europe
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