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 58
Trang ii
... Tropics : A Guide to the Development of National Programs , Robert F. Chandler , Jr. Small Farm Development : Understanding and Improving Farming Systems in the Humid Tropics , Richard R. Harwood Successful Seed Programs : A Planning ...
... Tropics : A Guide to the Development of National Programs , Robert F. Chandler , Jr. Small Farm Development : Understanding and Improving Farming Systems in the Humid Tropics , Richard R. Harwood Successful Seed Programs : A Planning ...
Trang 8
... tropical latitudes , but does not tuberize in Europe until late in the season - September or October - when the natural daylength shortens to about 12 hours . Consequently , Soviet botanists believed this subspecies could not have been ...
... tropical latitudes , but does not tuberize in Europe until late in the season - September or October - when the natural daylength shortens to about 12 hours . Consequently , Soviet botanists believed this subspecies could not have been ...
Trang 10
... tropics and subtropics . British missionaries , for example , took potatoes to many parts of Asia in the seventeenth century , and Belgian missionaries introduced them to the Congo in the nineteenth century . But 10 Patterns in ...
... tropics and subtropics . British missionaries , for example , took potatoes to many parts of Asia in the seventeenth century , and Belgian missionaries introduced them to the Congo in the nineteenth century . But 10 Patterns in ...
Trang 11
... tropics was severely limited by difficulties inherent in producing and storing them in the lowlands . The potato arrived in China around 1700 from the Dutch East Indies ( now Indonesia ) . Introductions were also made to northern China ...
... tropics was severely limited by difficulties inherent in producing and storing them in the lowlands . The potato arrived in China around 1700 from the Dutch East Indies ( now Indonesia ) . Introductions were also made to northern China ...
Trang 19
... tropical and subtropical zones . Only about 60 percent of the world's potatoes are now grown in Europe ; 10 percent are grown in other developed countries , and 30 percent in developing countries . Consumption Consumption trends do not ...
... tropical and subtropical zones . Only about 60 percent of the world's potatoes are now grown in Europe ; 10 percent are grown in other developed countries , and 30 percent in developing countries . Consumption Consumption trends do not ...
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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