Potatoes: Production, Marketing, And Programs For Developing CountriesInternational Potato Center, 23 thg 4, 1987 - 243 trang World patterns and trends in potato production and use; The potato crop and its physical environment; The socioeconomic environment: Levels of development and public policies; Supply, demand, and marketing; Potato nutrition and consuption; Potato production systems; Research priorities and potato programs; Impact of potato programs; Summing up. |
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... South America , but for the last two centuries most potatoes have been grown in Europe . For this reason , many people think of it as a European crop - the " Irish " potato- and assume that world trends in potato production and use ...
... South America , but for the last two centuries most potatoes have been grown in Europe . For this reason , many people think of it as a European crop - the " Irish " potato- and assume that world trends in potato production and use ...
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... South America : Solanum tuberosum subspecies andigena from the Andes or Solanum tuberosum subspecies tuberosum from southern Chile . The andigena subspecies tuberizes ( produces tubers ) under the 12 - hour days of tropical latitudes ...
... South America : Solanum tuberosum subspecies andigena from the Andes or Solanum tuberosum subspecies tuberosum from southern Chile . The andigena subspecies tuberizes ( produces tubers ) under the 12 - hour days of tropical latitudes ...
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... South America . The narrow genetic background of the potatoes grown in Ireland made them extremely vulnerable to disease attack . If one plant was susceptible to a disease , most others were likely to be susceptible too . In the 1840s ...
... South America . The narrow genetic background of the potatoes grown in Ireland made them extremely vulnerable to disease attack . If one plant was susceptible to a disease , most others were likely to be susceptible too . In the 1840s ...
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... South America . North America first received potatoes from England via Bermuda in 1621 ; there is no record of an introduction from South America until the 1860s . Travelers carried potatoes to the tropics and subtropics . British ...
... South America . North America first received potatoes from England via Bermuda in 1621 ; there is no record of an introduction from South America until the 1860s . Travelers carried potatoes to the tropics and subtropics . British ...
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... South Africa 59 145 54 Latin America 0 48 48 Argentina -39 17 91 Brazil -13 66 92 Chile -8 6 16 -42 Colombia 139 180 17 Cuba 79 182 57 Mexico 49 147 65 Peru -25 5 40 -26 75 ° ** ° * 2 * 28 * ******** 2 TABLE 2 , cont . Percentage change ...
... South Africa 59 145 54 Latin America 0 48 48 Argentina -39 17 91 Brazil -13 66 92 Chile -8 6 16 -42 Colombia 139 180 17 Cuba 79 182 57 Mexico 49 147 65 Peru -25 5 40 -26 75 ° ** ° * 2 * 28 * ******** 2 TABLE 2 , cont . Percentage change ...
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Potatoes: Production, Marketing, And Programs For Developing Countries Douglas Horton Xem trước bị giới hạn - 2019 |
POTATOES: Production, Marketing, and Programs for Developing Countries DOUGLAS. HORTON Không có bản xem trước - 2019 |
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Africa agricultural agricultural research America areas average Bangladesh blight breeding capita Central cereals changes commodity consumers costs crop cultivation demand depends developing countries diseases early economic effect estimates Europe example expand farmers farms fertilizers field food crops growing grown growth harvest hectare higher highland impact important improved income increase India inputs insect institutions International Potato Center land late less levels Lima limited losses lower lowland major Mantaro Valley needs North percent period Peru pests plant policies population potato consumption potato crop potato prices potato production potato programs practices priorities problems processing projections rates reduce regions relative requirements research and extension resistance result rice root Rwanda season seed tubers selection soil South South Korea sprout storage stored supply Table temperate temperatures tons tropical usually varieties vegetable virus yields zones