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Cassava yields obtained from farmers' fields in Nigeria during the Collaborative Study of Cassava in Africa (COSCA) survey gave an average root yield of 14.5 t/ha and an average harvest index of about 0.56. The average root yields from both the sub humid and non humid zones were the same but sign...


Asadu, C.L.A.Nweke, F.I.[Impact of agroecology on soil fertility status and cassava yield in Nigeria: II: contributions of soil properties to cassava yield variations]Impact of agroecology on soil fertility status and cassava yield in Nigeria: II: contributions of soil properties to cassava yield variations

As a result of their relatively limited access to production resources, it has been variously reported that women obtain lower yields from their individual crop fields than men. Cassava root yields obtained from farmers' fields in three villages of southeast Nigeria were compared using separate o...


Enete, A.A.Nweke, F.I.Achike, A.I.Tollens, E.[Defferentiated gender ownership of cassava fields and implications for root yield variations in small holder agriculture of southeast Nigeria]Defferentiated gender ownership of cassava fields and implications for root yield variations in small holder agriculture of southeast Nigeria

Nweke, F.I.Ezumah, H.Spencer, D.S.[Cropping systems and agroeconomic performance of improved cassava in a humid forest ecosystem: RCMP Research monograph, No. 2]Cropping systems and agroeconomic performance of improved cassava in a humid forest ecosystem: RCMP Research monograph, No. 2
Autor: Nweke, F.I.

COSCA was initiated through the realization that the potentials of cassava depends on availability of more detailed and reliable information on the cassava crop. The general objective of COSCA is therefore to improve the relevance and impact of agricultural research on cassava by International Ag...


Nweke, F.I.[Collaborative Study of Cassava in Africa (COSCA); project description: COSCA working paper, No. 1]Collaborative Study of Cassava in Africa (COSCA); project description: COSCA working paper, No. 1
Autor: Nweke, F.I.

The general objective of the Collaborative Study of Cassava in Africa (COSCA) is, to improve the relevance and impact of agricultural research on cassava by international agricultural research centres (!ARC) and national agricultural research systems (NARS) in Africa in order to take full advanta...


Nweke, F.I.[COSCA project description: COSCA working paper, No. 1]COSCA project description: COSCA working paper, No. 1

Expenditure elasticities were estimated for yam and cassava and for seven other food items widely consumed by the people of south-east Nigeria. For all households, the combined elasticity estimate for yam was above unity and almost as high as that of meat. For high expenditure households, however...


Nweke, F.I.Okorji, E.C.Njoku, J.E.King, D.J.[Expenditure elasticities of demand for major food items in south-east Nigeria]Expenditure elasticities of demand for major food items in south-east Nigeria

Nweke, F.I.[Processing potential for cassava production growth in Africa: Cosca working paper, No. 11]Processing potential for cassava production growth in Africa: Cosca working paper, No. 11

Nweke, F.I.Dixon, A.Asiedu, RobertFolayan, S.[Cassava varietal needs of farmers and the potential for production growth in Africa: COSCA working paper, No. 10]Cassava varietal needs of farmers and the potential for production growth in Africa: COSCA working paper, No. 10
Autor: Nweke, F.I.

Cassava makes an important contribution to improving food security and rural incomes in sub-Saharan Africa, as it is tolerant of drought and poor soil and its cultivation does not require much labour. However, the fresh roots are bulky and perishable and need to be processed before they can be ma...


Nweke, F.I.[Cassava processing in subSaharan Africa: the implications for expanding cassava production]Cassava processing in subSaharan Africa: the implications for expanding cassava production

This paper is based on information collected from about 600 villages in the ten largest cassava-producing countries within the framework of the Collaborative Study of Cassava in Africa (COSCA). The objective of the paper is to show that growth in cassava production in the region will depend more ...


Nweke, F.I.Bokanga, M.[Importance of cassava processing for production in subSaharan Africa]Importance of cassava processing for production in subSaharan Africa

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