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Oryza sativa, having the common name Asian cultivated rice, [2] is the much more common of the two rice species cultivated as a cereal, the other species being O. glaberrima, African rice. It was first domesticated in the Yangtze River basin in China 13,500 to 8,200 years ago.
World trade of rye is low compared with other grains such as wheat. The total export of rye for 2016 was $186 million [32] compared with $30.1 billion for wheat. [33] Poland consumes the most rye per person at 32.4 kg (71 lb) per capita (2009), followed by the Nordic and Baltic countries. The EU in general is around 5.6 kg (12 lb) per capita.
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Aeration process refers to the process of moving air through grain. Airflow is a measurement of the amount of air in cubic feet per minute (CFM). In grain drying process, drying time is largely depended on aeration rates. Without sufficient airflow, grain may be damaged before drying is complete. Fans are used to move air through grain. [6]
Rice grains can be planted directly into the field where they will grow, or seedlings can be grown in a seedbed and transplanted into the field. Direct seeding needs some 60 to 80 kg of grain per hectare, while transplanting needs less, around 40 kg per hectare, but requires far more labour. [6] Most rice in Asia is transplanted by hand.
Watery ripe: first grains have reached half their final size 73: Early milk 75: Medium milk: grain content milky 77: Late milk 8: Ripening 83: Early dough 85: Soft dough: grain content soft but dry, fingernail impression not held, grains and glumes still green 87: Hard dough: grain content solid, fingernail impression held 89
The term “upland rice” refers to rice cultivated in non-flooded conditions, and it can encompass various specific definitions. While most of the world's rice is grown in paddy fields or wet environments that require significant amount of water, rice itself does not inherently need flooding to thrive.
A box of .38 Special (9.1 mm) cartridges that have 148-grain (9.6 g) bullets. Grains are commonly used to measure the mass of bullets and propellants. [11] [12] In archery, the grain is the standard unit used to weigh arrows. [13] In North America, the hardness of water is often measured in grains per U.S. gallon (gpg) of calcium carbonate ...