Potatoes: Production, Marketing, And Programs For Developing CountriesAvalon Publishing, 23 thg 4, 1987 - 244 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 1-3 trong 33
Trang 134
... hectare of cropland , of which 0.2 hectares is in potatoes . In contrast , the average large farm , has 75 hectares of cropland with 42 hectares in potatoes . Small farms are scattered throughout all ecological niches ; large farms are ...
... hectare of cropland , of which 0.2 hectares is in potatoes . In contrast , the average large farm , has 75 hectares of cropland with 42 hectares in potatoes . Small farms are scattered throughout all ecological niches ; large farms are ...
Trang 143
... hectare of livestock manure on their potatoes , and nearly all use chemical fertilizers and pesticides . Average fertilizer applications are above the recommended levels . Pesticides are used mainly to control late blight , which is ...
... hectare of livestock manure on their potatoes , and nearly all use chemical fertilizers and pesticides . Average fertilizer applications are above the recommended levels . Pesticides are used mainly to control late blight , which is ...
Trang 149
... hectare in the high potato - growing areas of the northwest and 2.1 hectares in lower regions to the southeast . Farms are extremely fragmented : A holding of less than 1 hectare may consist of eight to ten small plots several ...
... hectare in the high potato - growing areas of the northwest and 2.1 hectares in lower regions to the southeast . Farms are extremely fragmented : A holding of less than 1 hectare may consist of eight to ten small plots several ...
Nội dung
Introduction | 1 |
The potato crop and its physical environment | 27 |
Supply demand and marketing | 63 |
Bản quyền | |
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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 research America Andean average bacterial wilt Bangladesh Benguet Province Bogra breeding cassava cereals Chile cold storage consumer potatoes Dalat demand for potatoes developing areas developing countries economic elasticity of demand estimates Europe farmers farms food balance sheets food crops grow potatoes growers growth harvest hectare impact imported seed improved increase India inputs insect institutions International Potato Center irrigation Kenya kilograms late blight levels Lima livestock lowland areas lowland tropical maize Mantaro Valley national programs nematode percent Peru pesticides plant PNAP post-harvest potato consumption potato crop potato cultivation potato production potato programs potato research potato varieties potato yields potatoes are grown production costs protein regions research and extension resistance rice root crops Rwanda season seed potatoes seed production seed program seed tubers soil South America sprout Sri Lanka staple food supply temperatures tons tropics and subtropics usually vegetable virus diseases