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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.
Experiments with upland rice demonstrated that it could grow over large areas of the country but the crop's yield and quality are inferior to lowland rice produced by irrigation methods. [11] Geese flying over a rice field in the Sacramento Valley, California. Rice dryer and storage building in Arkansas County, Arkansas
These are the southern delta (with its Mekong Delta dominating rice coverage), the northern delta (the tropical monsoon area with cold winters) and the highlands of the north (with upland rice varieties). [3] The most prominent irrigated rice system is the Mekong Delta. [3] Rice is a staple of the national diet and is seen as a "gift from God". [4]
Abiotic factors include the soil type, whether lowland or upland, amount of rain or irrigation water, temperature, day length, and intensity of sunlight. [5] 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.
Rice raised in the well-watered lowland areas is known as lowland or wet rice. In the hilly areas, slopes are cut into terraces for the cultivation of rice. Thus, the rice grown in the hilly areas is known as dry or upland rice. The yield of upland rice per hectare is comparatively less than that of wet rice.
As a plant breeder, he made significant contributions to rice breeding. He provided guidance for the development, isolation, and release of nine Seed Board rice varieties: Milpal 4, HBD-2, Azmil 26 and C-22 for upland rice production, and C-18, C4-63, C4-137, C-168 and C-12 for lowland rice production.
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Double rice cropping is mainly utilised in the South, accounting for 34% of the country's production rate. Annual rice-upland crop rotation systems are commonly used in Central regions such as Hubei, Sichuan, Anhui, and Jiangsu provinces, as well as near the Yangtze River Valley. Rice-upland systems generate 49% of the nation's rice production ...