What was one result of the boom in crop production in the 1870s
London, Paris, Rome, Amsterdam, Berlin etc.
People known as serfs.
1600s
In the Middle Ages, one important improvement was the three field system of crop rotation, in which a field would be planted with one crop in one year, a different crop the next year, and no crop in the third year so it could lie fallow and recover. Prior to this, a different system was used, but the three field system increased the amount of available land for farming by a third. This system of crop rotation meant that more people could be fed by each farmer, and this was one of the important factors in the growth of towns and cities.
i believe that europes main source of money is either export's or forign car shipping, but that's my opion on the matter. <hope i waz helpful>
North Sea
Switzerland
Venezuela's main crop is corn.
Rice is the main crop of Bhutan.
The main crop of Virginia was tobacco. This was mainly grown in Jamestown and served as the main cash crop in the colony.
The main crop grown in Australia is wheat.
Maize is the main food crop and tobacco is the main cash crop
I believe the main food crop is asparagus.
tobacco was the main crop in the Chesapeake.
what was the main crop the pilgrims planted
rice or opium, depends what you mean by "popular"