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The first documented Africans were brought to Maryland in 1642, as 13 slaves at St. Mary's City, the first English settlement in the Province. [1] Slave labor made possible the export-driven plantation economy. The English observer William Strickland wrote of agriculture in Virginia and Maryland in the 1790s:
The Feekes scale is a system to identify the growth and development of cereal crops introduced by the Dutch agronomists Willem Feekes (1907-1979) in 1941. [ 1 ] [ 2 ] This scale is more widely used in the United States [ 3 ] than other similar and more descriptive [ 4 ] [ 5 ] scales such as the Zadoks scale or the BBCH scale .
For a list of food plants and other crops which were only introduced to Old World cultures as a result of the Columbian Exchange touched off by the arrival of Christopher Columbus in 1492, see New World crops. [1]
Industrial crops: cotton, sugarcane, tobacco, groundnut, castor, gingelly, tapioca, etc. Food adjuncts: food and industrial use, no distinct demarcation; spices, condiments, beverages, and narcotics. It is also possible that one crop which has been included as a food crop may be figured as an industrial crop; for example maize or tapioca.
Harvesting a cereal with a combine harvester accompanied by a tractor and trailer. Cereal grains: (top) pearl millet, rice, barley (middle) sorghum, maize, oats (bottom) millet, wheat, rye, triticale. A cereal is a grass cultivated for its edible grain. Cereals are the world's largest crops, and are therefore staple foods.
New tests done by the Environmental Working Group have found 21 oat-based cereals and snack bars popular amongst children to have "troubling levels of glyphosate." The chemical, which is the ...
Cereals are the world's largest crops by tonnage of grain produced. [82] Three cereals, maize, wheat, and rice, together accounted for 89% of all cereal production worldwide in 2012, and 43% of the global supply of food energy in 2009, [90] while the production of oats and rye has drastically fallen from their 1960s levels. [91]
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