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Rice plant (Oryza sativa) with branched panicles containing many grains on each stem Rice grains of different varieties at the International Rice Research InstituteRice is a cereal grain and in its domesticated form is the staple food of over half of the world's population, particularly in Asia and Africa.
Rice production by country (2019) This is a list of countries by rice production in 2022 based on the Food and Agriculture Organization Corporate Statistical Database. The total world rice production for 2022 was 776,461,457 [1] [2] metric tonnes. In 1961, the total world production was 216 million tonnes.
One of the earliest known examples of companion planting is the growing of rice with Azolla, the mosquito fern, which covers the top of a fresh rice paddy's water, blocking out any competing plants, as well as fixing nitrogen from the atmosphere for the rice to use. The rice is planted when it is tall enough to poke out above the azolla.
The type of rice exported is rough or unmilled rice, parboiled rice, brown rice, and fully milled rice. Exports to Mexico and Central America are mostly of the rough rice variety. Other countries to which the US exports rice include Mexico, Central America, Northeast Asia, the Caribbean, and the Middle East, Canada, the European Union (EU-27 ...
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.
Southern or annual wild rice (Z. aquatica), also an annual, grows in the Saint Lawrence River, the state of Florida, [5] and on the Atlantic and Gulf coasts of the United States. [6] [7] Texas wild rice is a perennial plant found only in a small area along the San Marcos River in central Texas. One species is native to Asia:
Allelopathic plants can affect the growth of nearby plants through the production of biological compounds they release into the environment. If allelopathic rice—or other plant species—could be found to inhibit the growth of weeds important in rice production, it might be possible through genetic engineering to develop rice cultivars that ...