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 71
Trang 9
... crops were often confiscated or destroyed ; potatoes that were still in the ground escaped . Farmers , realizing this , did not harvest and store their potatoes , but dug them up as required . Tubers left in the ground served as seed ...
... crops were often confiscated or destroyed ; potatoes that were still in the ground escaped . Farmers , realizing this , did not harvest and store their potatoes , but dug them up as required . Tubers left in the ground served as seed ...
Trang 21
... potatoes in some instances . Seeding rates significantly affect the amount of potatoes avail- able for human consumption . Most potato growers must plant 1 or 2 tons of seed tubers per hectare , which is commonly 10 to 15 percent of the ...
... potatoes in some instances . Seeding rates significantly affect the amount of potatoes avail- able for human consumption . Most potato growers must plant 1 or 2 tons of seed tubers per hectare , which is commonly 10 to 15 percent of the ...
Trang 28
... tubers ) from one 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 ... tubers mother tuber ...
... tubers ) from one 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 ... tubers mother tuber ...
Trang 29
... tuber physiology in general have an important bearing on production and use of " seed " tubers . The outer layer of the tuber's cells is known as the epidermis . Immediately below the epidermis is the periderm consisting of stolon eyes ...
... tuber physiology in general have an important bearing on production and use of " seed " tubers . The outer layer of the tuber's cells is known as the epidermis . Immediately below the epidermis is the periderm consisting of stolon eyes ...
Trang 31
... seeds , which form in the small , tomato - like fruits . However , with few exceptions , the world's potato growers plant tubers . This type of vegetative ... seed tubers is a serious constraint to The crop and its environment 31.
... seeds , which form in the small , tomato - like fruits . However , with few exceptions , the world's potato growers plant tubers . This type of vegetative ... seed tubers is a serious constraint to The crop and its environment 31.
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