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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Kết quả 1-5 trong 92
Trang ix
... grown and used . Potatoes are important because they are a major food crop whose production is increasing rapidly . Dr. Horton was able to combine a long period on the staff of the International Potato Center with a year at the ...
... grown and used . Potatoes are important because they are a major food crop whose production is increasing rapidly . Dr. Horton was able to combine a long period on the staff of the International Potato Center with a year at the ...
Trang 5
... 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 parallel European trends . This is not the case . Since World War II ...
... 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 parallel European trends . This is not the case . Since World War II ...
Trang 9
... 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 outbreak of late blight ravaged potatoes . This fungal ...
... 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 outbreak of late blight ravaged potatoes . This fungal ...
Trang 10
... grown until about 1800 . Only when potatoes became a low - cost source of food energy ( due primarily to the selection of adapted varieties ) and when other foods became scarce ( primarily as a result of crop failures , wars , or ...
... grown until about 1800 . Only when potatoes became a low - cost source of food energy ( due primarily to the selection of adapted varieties ) and when other foods became scarce ( primarily as a result of crop failures , wars , or ...
Trang 11
... grown as a garden vegetable in parts of western India , but the potato reached southern India only in the 1880s . The British promoted potato cultivation in the hill areas of northern India . By the 1820s , farming households were ...
... grown as a garden vegetable in parts of western India , but the potato reached southern India only in the 1880s . The British promoted potato cultivation in the hill areas of northern India . By the 1820s , farming households were ...
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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