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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 .
BBCH-scales have been developed for a range of crop species where similar growth stages of each plant are given the same code. Phenological development stages of plants are used in a number of scientific disciplines ( crop physiology , phytopathology , entomology and plant breeding ) and in the agriculture industry ( risk assessment of ...
Cropmarks or crop marks are a means through which sub-surface archaeological, natural and recent features may be visible from the air or a vantage point on higher ground or a temporary platform. Such marks, along with parch marks, [ 1 ] soil marks and frost marks, can reveal buried man-made structures that are not visible from the ground.
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:
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.
1.1 Cereal. 1.2 Vegetables. 1.3 Fruits. 1.4 Dairy. 1.5 Drinks. ... Printable version; In other projects ... Food and Agriculture Organization of the United Nations ...
A grain crop is a grain-producing plant. The two main types of commercial grain crops are cereals and legumes . After being harvested, dry grains are more durable than other staple foods , such as starchy fruits ( plantains , breadfruit , etc.) and tubers ( sweet potatoes , cassava , and more).
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.