من داخل الكتاب
النتائج 1-3 من 61
الصفحة 9
To take but one example , the Green Revolution rice plant ideotype , originally an important conceptual resource for focusing the activities of plant breeders during the 1960s , introduced a number of rigidities into the way breeders ...
To take but one example , the Green Revolution rice plant ideotype , originally an important conceptual resource for focusing the activities of plant breeders during the 1960s , introduced a number of rigidities into the way breeders ...
الصفحة 53
... quite densely settled rural landscape ( from 1953 to 1984 local population density climbed from essentially zero to almost 100 / km ? ) , we can assume that the number of plant and animal species has declined ( although Kofyar plant ...
... quite densely settled rural landscape ( from 1953 to 1984 local population density climbed from essentially zero to almost 100 / km ? ) , we can assume that the number of plant and animal species has declined ( although Kofyar plant ...
الصفحة 65
Multiple species of plants and animals in different micro - environments provide some security against unpredictable ... Insects and plant diseases , both of which spread more rapidly through a mono - cropped field , may be slowed when ...
Multiple species of plants and animals in different micro - environments provide some security against unpredictable ... Insects and plant diseases , both of which spread more rapidly through a mono - cropped field , may be slowed when ...
ما يقوله الناس - كتابة مراجعة
لم نعثر على أي مراجعات في الأماكن المعتادة.
طبعات أخرى - عرض جميع المقتطفات
عبارات ومصطلحات مألوفة
activities administration African agricultural Akan argued authority become biodiversity Cambridge cent century chiefs Christian colonial communities concept conservation context continued created crop cult cultivation culture disease District diversity early ecology economic effects environment environmental example fact farmers farming field forest forms Ghana groups household human important increase indigenous Institute interest International interpretation knowledge labour land less lives LoDagaa London major means missionaries nature northern noted original particular past patterns period plant political population position possible practices present problems production question recent refer region relations religious remained result rice savanna season Sierra Leone slave social society species spirit structure suggest traditional trees University Press variety vegetation village West women World