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Upland Rice Response to Phosphorus Fertilization in Asia [PDF]
Agronomy Journal, 2001 Upland rice (Oryza sativa L.) yields on infertile, acid soils in the Asian uplands average only 1 Mg ha−1 Phosphorus deficiency is considered a major soil constraint to increased yield, but little quantitative information is available. We analyzed P responses of traditional rice on farm in Laos, Thailand, and the Philippines and improved varieties in ...
George, Thomas +5 more
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LABOUR AND UPLAND RICE PRODUCTION
Journal of Agricultural Economics, 1973This paper, with the use of field data collected from 106 farm households in Sierra Leone, evaluates the ‘labour‐surplus model’ for West African rice farms. The analysis of labour utilisation on traditional upland farms suggest the existence of economies of size for selected work activities.
Athanasius O. Njoku, Gerald L. Karr
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Outlook on Agriculture, 1985
Although only 5 per cent of the world's rice crop derives from upland (dry) rice, there are certain areas in Africa and Latin America, and parts of the poorest regions of Asia, where it is relatively much more important. This has led to internationally co-ordinated research to improve the crop.
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Although only 5 per cent of the world's rice crop derives from upland (dry) rice, there are certain areas in Africa and Latin America, and parts of the poorest regions of Asia, where it is relatively much more important. This has led to internationally co-ordinated research to improve the crop.
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2019
South Korea’s Green and Seed is using new technology to move more of the world’s rice production upland, out of flooded fields. <em>A <strong>What's Next article </strong>from the <strong>Fall 2019</strong> issue.</em>
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South Korea’s Green and Seed is using new technology to move more of the world’s rice production upland, out of flooded fields. <em>A <strong>What's Next article </strong>from the <strong>Fall 2019</strong> issue.</em>
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Upland and Lowland Rice in the Netherlands Indies
2016The global trade in rice is historically recent and its total quantity relatively small. Colonial explorations were the main incentive for its development, but only beginning in the 19th century did rice-producing countries in Asia export rice outside the continent in bulk.
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Water deficits and yield in upland rice
Field Crops Research, 1981Abstract Few data are available relating leaf water potential to yield and yield components. In field conditions, ascertaining leaf water potential at high frequency is both laborious and detrimental to crop stands. Leaf water potential and six soil and climatic descriptors related to the crop water status were monitored in an upland rice farmer's ...
J.C. O'Toole, T.B. Moya
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Towards a perennial upland rice
1998In order to provide both a means of livelihood and control erosion in the uplands of Southeast Asia, a perennial upland rice is under development. Genes for rhizome expression are being introgressed from #Oryza longistaminata# (Ol) into #O. sativa# (Os).
McNally, Kenneth L. +2 more
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Towards a perennial upland and rice
1998In order to provide both a means of livelihood and control erosion in the uplands of Southeast Asia, a perennial upland rice is under development. Genes for rhizome expression are being introgressed from Oryza longistaminata (Ol) into O. sativa (Os).
McNally, Kenneth L. +2 more
openaire +1 more source