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 36
Trang 37
... soil temperature . Soil temperatures below about 12 degrees or above 28 degrees C impair sprout development . Frost and hail can damage potato plants and cut yields drastically . Farmers high in the Andes grow " bitter " potatoes ...
... soil temperature . Soil temperatures below about 12 degrees or above 28 degrees C impair sprout development . Frost and hail can damage potato plants and cut yields drastically . Farmers high in the Andes grow " bitter " potatoes ...
Trang 38
... soil moisture , although less common than moisture shortage , may also reduce potato yields . The limited oxygen content of very wet soil damages roots , and new tubers in saturated soil may rot because their lenticels open , permitting ...
... soil moisture , although less common than moisture shortage , may also reduce potato yields . The limited oxygen content of very wet soil damages roots , and new tubers in saturated soil may rot because their lenticels open , permitting ...
Trang 40
... soil scientists , farmers often orient their rows up and down the slope . Although in the long run , cultivation of sloping land fosters soil erosion , farmers often have good reasons for growing potatoes on hillsides . Due to ...
... soil scientists , farmers often orient their rows up and down the slope . Although in the long run , cultivation of sloping land fosters soil erosion , farmers often have good reasons for growing potatoes on hillsides . Due to ...
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