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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Trang iv
... America by Westview Press , Inc .; Frederick A. Praeger , Publisher ; 5500 Central Avenue , Boulder , Colorado 80301 Published in 1987 in the United Kingdom by Intermediate Technology Publications , 9 King Street , London , WC2E 8HW ...
... America by Westview Press , Inc .; Frederick A. Praeger , Publisher ; 5500 Central Avenue , Boulder , Colorado 80301 Published in 1987 in the United Kingdom by Intermediate Technology Publications , 9 King Street , London , WC2E 8HW ...
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... America and Oceania by 1 to 2 percent per year ; in Latin America by nearly 3 percent per year ; and in Africa and Asia by 4 percent per year . In the developing countries , total potato production has more than doubled since 1965 ( Fig ...
... America and Oceania by 1 to 2 percent per year ; in Latin America by nearly 3 percent per year ; and in Africa and Asia by 4 percent per year . In the developing countries , total potato production has more than doubled since 1965 ( Fig ...
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... 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 , but ...
... 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 , but ...
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... 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 an ...
... 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 an ...
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... 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 ...
... 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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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