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Both upcountry and low country wetlands use paddy cultivation. The majority of paddy land is in the dry zone, and it uses special irrigation systems for cultivation. The water storing tank called "Wewa" facilitates a supply of water to paddy lands in the cultivation period. Agriculture in Sri Lanka mainly depends on rice production. [45]
To start with the production process, paddy is cleaned by a paddy pre-cleaning machine and the cleaned paddy is stored in raw paddy storage bins. The stored paddy is moved to food-grade stainless steel soaking tanks. Water is drained from the tank and the wet paddy is ready for boiling. Boiling is done by a steam boiler.
Broken rice from a rice huller will be brown whole grain; broken rice from a gristmill may be white. [citation needed]On milling, Oryza sativa, commonly known as Asian rice or paddy rice, produces around 50% whole rice then approximately 16% broken rice, 20% husk, 14% bran and meal.
In older methods, clean paddy rice was soaked in cold water for 36–38 hours to give it a moisture content of 30–35%, after which the rice was put in parboiling equipment with fresh cold water and boiled until it began to split. The rice was then dried on woven mats, cooled and milled. [11] [12]
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.
Rice does not thrive if continuously submerged. [8] Rice can be grown in different environments, depending upon water availability. The usual arrangement is for lowland fields to be surrounded by bunds and flooded to a depth of a few centimetres until around a week before harvest time; this requires a large amount of water. The "alternate ...
Paddy fields in Piedmont (Northern Italy) in 1920s Planting rice, 1949, (Alginet-Valencian Country) Rice was known to the Classical world, being imported from Egypt, and perhaps west Asia. It was known to Greece (where it is still cultivated in Macedonia and Thrace) by returning soldiers from Alexander the Great's military expedition to Asia.
Direct seeded rice (DSR) [2] [3] is a practice of sowing paddy which involves planting rice seeds directly into the field, instead of the traditional method of growing seedlings in nurseries and then transplanting them into the fields. This method significantly reduces the demand for labor, one of the major costs associated with rice farming.