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. |
Từ bên trong sách
Kết quả 1-5 trong 58
Trang 8
... season - September or October - when the natural daylength shortens to about 12 hours . Consequently , Soviet botanists believed this subspecies could not have been the one first introduced in Europe . Experiments have shown , however ...
... season - September or October - when the natural daylength shortens to about 12 hours . Consequently , Soviet botanists believed this subspecies could not have been the one first introduced in Europe . Experiments have shown , however ...
Trang 11
... season as seed systems emerged , irrigation and storage methods improved , population grew , and demand for food increased . Potatoes were introduced into Tibet from both China and India . By 1900 the chief dish of the Tibetans was ...
... season as seed systems emerged , irrigation and storage methods improved , population grew , and demand for food increased . Potatoes were introduced into Tibet from both China and India . By 1900 the chief dish of the Tibetans was ...
Trang 28
... season to the next . Some farmers in such widely dispersed locations as Ireland , Newfoundland , Peru , Guatemala , the Hi- malayas , and Rwanda leave some tubers in the ground to serve as seed for the next crop . In most areas ...
... season to the next . Some farmers in such widely dispersed locations as Ireland , Newfoundland , Peru , Guatemala , the Hi- malayas , and Rwanda leave some tubers in the ground to serve as seed for the next crop . In most areas ...
Trang 34
... season . Others , such as bacterial wilt , can also remain in the soil for several years . The most important ... season in their locations and their cropping alternatives . In areas where the growing season is short , early potatoes are ...
... season . Others , such as bacterial wilt , can also remain in the soil for several years . The most important ... season in their locations and their cropping alternatives . In areas where the growing season is short , early potatoes are ...
Trang 35
... season , late - maturing varieties produce a rather low yield , but when harvested later in the season they. The crop and its environment 35.
... season , late - maturing varieties produce a rather low yield , but when harvested later in the season they. The crop and its environment 35.
Ấn bản in khác - Xem tất cả
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 |
Thuật ngữ và cụm từ thông dụng
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