Manure is a key nutrient resource on smallholder farms in the tropics, especially on poorly buffered sandy soils, due to its multiple benefits for soil fertility. Farmers preferentially apply manure to fields closest to homesteads (homefields), which are more fertile than fields further away (out...
Zingore, Shamie
,
Delve, Robert J.
,
Nyamangara, Justice
,
Giller, Ken E.
,
[Multiple benefits of manure : The key to maintenance of soil fertility and restoration of depleted sandy soils on African smallholder farms]
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Multiple benefits of manure : The key to maintenance of soil fertility and restoration of depleted sandy soils on African smallholder farms
This case study from Bu´zi district, Mozambique investigated whether gender equality, in terms
of male and female participation in groups, leads to gender equity in sharing of benefits from
the social capital created through the group. Exploring the complex connection between
gender, groups, and ...
Gotschi, Elisabeth
,
Njuki, Jemimah
,
Delve, Robert J.
,
[Gender equity and social capital in smallholder farmer groups in central Mozambique]
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Gender equity and social capital in smallholder farmer groups in central Mozambique
This paper reports on a Participatory Learning and Action Research (PLAR) process that was initiated in three villages in eastern Uganda in September 1999 to enable small-scale farmers to reverse nutrient depletion of their soils profitably by increasing their capacity to develop, adapt and use i...
Esilaba, Anthony O.
,
Byalebeka, J.B.
,
Delve, Robert J.
,
Okalebo, JR
,
Ssenyange, D
,
Mbalule, M
,
Ssali, H.
,
[On farm testing of integrated nutrient management strategies in Eastern Uganda]
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On farm testing of integrated nutrient management strategies in Eastern Uganda
Farmer participatory research (FPR) approaches are now considered mainstream and are especiallyapplicable for developing appropriate technology options in complex, diverse and risk-prone regions,where local adaptations are crucial. Although the advantages of using farmer kno...
Asten, Piet J.A. van
,
Kaaria, Susan K.
,
Fermont, A.M.
,
Delve, Robert J.
,
[Challenges and lessons when using farmer knowledge in agricultural research and development projects in Africa]
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Challenges and lessons when using farmer knowledge in agricultural research and development projects in Africa
The role of livestock in nitrogen cycling in mixed crop-livestock farming systems of sub-Saharan Africa was explored. Cattle were fed a range of diets to investigate the effects on partitioning of nitrogen between urine and faeces and on the chemical composition of the manures produced. The trade...
Delve, Robert J.
,
Cadisch, Georg
,
Tanner, J.C.
,
Thorpe, W.R.
,
Thorne, Peter J.
,
Giller, Ken E.
,
[Implications of livestock feeding management on soil fertility in the smallholder farming systems of sub-Saharan Africa]
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Implications of livestock feeding management on soil fertility in the smallholder farming systems of sub-Saharan Africa
Farmer participatory research (FPR) approaches are now considered mainstream and are especially applicable for developing appropriate technology options in complex, diverse and risk-prone regions, where local adaptations are crucial. Although the advantages of using farmer knowledge to guide scie...
Asten, Piet J.A. van
,
Kaaria, Susan K.
,
Fermont, AM
,
Delve, Robert J.
,
[Challenges and lessons when using farmer knowledge in agricultural search and development projects in Africa]
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Challenges and lessons when using farmer knowledge in agricultural search and development projects in Africa
Masvaya, EN
,
Nyamangara, Justice
,
Nyawasha, RW
,
Zingore, Shamie
,
Delve, Robert J.
,
Giller, Ken E.
,
[Effect of farmer management strategies on spatial variability of soil fertility and crop nutrient uptake in contrasting agro-ecological zones in Zimbabwe]
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Effect of farmer management strategies on spatial variability of soil fertility and crop nutrient uptake in contrasting agro-ecological zones in Zimbabwe
Three case studies show that natural resource management (NRM) research aimed at sustainably improving the well-being of African small-holder farmers is complex, and that monitoring and evaluation (M&E) is an essential tool in coping with this complexity, supported by an ‘innovation systems’ view...
Douthwaite, Boru
,
Delve, Robert J.
,
Ekboir, Javier M.
,
Twomlow, Stephen
,
[Contending with complexity: The role of evaluation in implementing sustainable natural resource management]
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Contending with complexity: The role of evaluation in implementing sustainable natural resource management
Agricultural research and development organizations are increasingly under pressure to shift from enhancing productivity of food crops to improving profitability and competitiveness of small-scale farming, and linking smallholder farmers to more profitable markets. What is not obvious however, is...
Sanginga, Pascal C.
,
Best, R.
,
Chitsike, C.
,
Delve, Robert J.
,
Kaaria, Susan K.
,
Kirkby, Roger A.
,
[Enabling rural innovation in Africa : An approach for integrating farmer participatory research and market orientation for building the assets of rural poor]
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Enabling rural innovation in Africa : An approach for integrating farmer participatory research and market orientation for building the assets of rural poor
In African smallholder agriculture, improved farm-scale understanding of the interaction between the household, crops, soils and livestock is required to develop appropriate strategies for improving productivity. A combination of models was used to analyse land use and labour allocation strategie...
Zingore, Shamie
,
González Estrada, E.
,
Delve, Robert J.
,
Herrero, Mario T.
,
Dimes, John P.
,
Giller, Ken E.
,
[An integrated evaluation of strategies for enhancing productivity and profitability of resource-constrained smallholder farms in Zimbabwe]
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An integrated evaluation of strategies for enhancing productivity and profitability of resource-constrained smallholder farms in Zimbabwe