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
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... 3 The socioeconomic environment : Levels of development and public policies . ... 53 Economic development ..... ..55 Government policies and programs . ..58 ... Bibliographic notes ... € 61 ν 4 Supply , demand , and marketing .. 63 Supply.
... 3 The socioeconomic environment : Levels of development and public policies . ... 53 Economic development ..... ..55 Government policies and programs . ..58 ... Bibliographic notes ... € 61 ν 4 Supply , demand , and marketing .. 63 Supply.
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... levels vary greatly among countries and regions ( Fig . 3 ) . Although potato consumption in Europe has been falling , it still exceeds 100 kilograms per year per head in the UK , Poland , the USSR , and East Germany . And although ...
... levels vary greatly among countries and regions ( Fig . 3 ) . Although potato consumption in Europe has been falling , it still exceeds 100 kilograms per year per head in the UK , Poland , the USSR , and East Germany . And although ...
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... levels obtained in North America ( as shown previously in Table 3 ) . Yet it is erroneous to conclude that gaps in yields among countries or regions could be easily closed by transferring tech- nology from the high - yielding areas ...
... levels obtained in North America ( as shown previously in Table 3 ) . Yet it is erroneous to conclude that gaps in yields among countries or regions could be easily closed by transferring tech- nology from the high - yielding areas ...
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... levels and how the harvest is used . Three groups of environmental conditions are of paramount importance : weather and climate ; soils , fer- tilization , and relief ; and pests and diseases . Weather and climate Daylength and ...
... levels and how the harvest is used . Three groups of environmental conditions are of paramount importance : weather and climate ; soils , fer- tilization , and relief ; and pests and diseases . Weather and climate Daylength and ...
Trang 40
... level land rather than on hillsides to minimize erosion and take advantage of fertile valley - bottom soils . Where slopes must be cultivated , planting on horizontal " contour lines " is recommended . To the dismay of the experts ...
... level land rather than on hillsides to minimize erosion and take advantage of fertile valley - bottom soils . Where slopes must be cultivated , planting on horizontal " contour lines " is recommended . To the dismay of the experts ...
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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