09-09-2017, 09:35 AM
Rice is the seed of grass Oryza sativa (Asian rice) or Oryza glaberrima (African rice). As a grain cereal, it is the staple food most consumed for a large part of the world's human population, especially in Asia. It is the agricultural product with the third largest world production (rice, 741.5 million tons in 2014), after sugarcane (1.9 billion tons) and maize (1.0 billion tons) .
Because most sugarcane and maize crops are used for purposes other than human consumption, rice is the most important grain in terms of human nutrition and caloric intake, providing more than a fifth of calories consumed around the world by humans. There are many varieties of rice and culinary preferences tend to vary regionally.
Rice, a monocotyledon, is normally grown as an annual plant, although in tropical areas it can survive as perennial and can produce soca culture for up to 30 years. Rice cultivation is well adapted to countries and regions with low labor costs and high rainfall, as it requires a lot of labor to grow and requires abundant water. However, rice can be grown practically anywhere, even on a steep hill or mountain area with the use of water control terrace systems. Although its parent species originate in Asia and certain parts of Africa, centuries of trade and export have made it a common place in many cultures around the world.
The traditional method of cultivating rice is to flood the fields while, or after, set young seedlings. This simple method requires good planning and maintenance of the dam and water channelling, but it reduces the growth of weed plants and less robust pests that do not have a state of submerged growth and deters the parasites. While flooding is not mandatory for rice cultivation, all other irrigation methods require more effort in weed and pest control during periods of growth and a different approach to fertilise the soil.
The name of wild rice is generally used for species of the genera Zizania and Porteresia, both wild and domesticated, although the term can also be used for primitive or uncultivated varieties of Oryza.
Because most sugarcane and maize crops are used for purposes other than human consumption, rice is the most important grain in terms of human nutrition and caloric intake, providing more than a fifth of calories consumed around the world by humans. There are many varieties of rice and culinary preferences tend to vary regionally.
Rice, a monocotyledon, is normally grown as an annual plant, although in tropical areas it can survive as perennial and can produce soca culture for up to 30 years. Rice cultivation is well adapted to countries and regions with low labor costs and high rainfall, as it requires a lot of labor to grow and requires abundant water. However, rice can be grown practically anywhere, even on a steep hill or mountain area with the use of water control terrace systems. Although its parent species originate in Asia and certain parts of Africa, centuries of trade and export have made it a common place in many cultures around the world.
The traditional method of cultivating rice is to flood the fields while, or after, set young seedlings. This simple method requires good planning and maintenance of the dam and water channelling, but it reduces the growth of weed plants and less robust pests that do not have a state of submerged growth and deters the parasites. While flooding is not mandatory for rice cultivation, all other irrigation methods require more effort in weed and pest control during periods of growth and a different approach to fertilise the soil.
The name of wild rice is generally used for species of the genera Zizania and Porteresia, both wild and domesticated, although the term can also be used for primitive or uncultivated varieties of Oryza.