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 41
Trang viii
... inputs for potato production in various areas .. 17 16 Potato production characteristics in the Mantaro Valley , Peru , by agroecological zone , 1977/78 . Value of ten major crops in developing countries compared with research ...
... inputs for potato production in various areas .. 17 16 Potato production characteristics in the Mantaro Valley , Peru , by agroecological zone , 1977/78 . Value of ten major crops in developing countries compared with research ...
Trang 42
... are heavily applied by potato growers in Costa Rica and many other countries . Research can reduce the cost of inputs farmers use . Potatoes are an important cash crop in northern Ecuador . 42 The crop and its environment.
... are heavily applied by potato growers in Costa Rica and many other countries . Research can reduce the cost of inputs farmers use . Potatoes are an important cash crop in northern Ecuador . 42 The crop and its environment.
Trang 48
... input , high - output , high - risk crop . The great responsiveness of yields to inputs - such as high quality seed tubers , fertilizers , pesticides , additional labor , and other forms of energy - motivates farmers to use inputs more ...
... input , high - output , high - risk crop . The great responsiveness of yields to inputs - such as high quality seed tubers , fertilizers , pesticides , additional labor , and other forms of energy - motivates farmers to use inputs more ...
Trang 49
... input , accounting for a fourth or more of the production expenditures in most de- veloping areas . If seed tubers are imported , they sometimes may account for over half the total cost . Clearly , less expensive planting material could ...
... input , accounting for a fourth or more of the production expenditures in most de- veloping areas . If seed tubers are imported , they sometimes may account for over half the total cost . Clearly , less expensive planting material could ...
Trang 54
... inputs . Although farmers in remote areas continue to grow native varieties for their own consumption , most sell part of their harvest and purchase some inputs . The process of varietal selection has been accelerated by Peru's Ministry ...
... inputs . Although farmers in remote areas continue to grow native varieties for their own consumption , most sell part of their harvest and purchase some inputs . The process of varietal selection has been accelerated by Peru's Ministry ...
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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 |
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