I think it was <span> over who would control appointments of church officials, a conflict which is sometimes called the Investiture Controversy. Hope this was useful :P</span>
Answer:
The reasons why agriculture was boosted after the 1812 war were:
Farmers begun selling their produce for profit.
Demand for farm produce such as cotton increased as standards of living improved.
cutting-edge invention such as the steel plough and the mechanical mower leaper.
The fourth plague of Egypt was of creatures capable of harming people and livestock. The Torah emphasizes that the 'arob (עָרוֹב, meaning "mixture" or "swarm") only came against the Egyptians, and that it did not affect the Land of Goshen (where the Israelites lived).
Hope This Helps! Have A Nice Day!!