This study examined optimum cropping patterns for selected root and tuber crop based production and resource allocation of smallholder farmers in Abia State, Nigeria, using the linear programming approach. The objective function was to maximize gross revenue from the production of selected root and tuber crop based production activities subject to land, labour and minimum subsistence family staple food consumption. Cost route approach was used to collect data from a random sample of 60 smallholder farmers in the state using the multistage stratified technique for location. The activities incorporated in the LP model include crop production activities, labour activities and product selling activities. Crop production activities comprise sole crops and crop mixtures. Existing selected crop activities were compared with their optimum counterparts. Resource allocation was compared between farm land owners and tenants with the aim of investigating their relative competitiveness in major root crop based production combination. Results showed that the sampled farmers were not optimal in their resource allocation. There was gross misallocation of labour for both land owners and tenant farmer. For the selected root and tuber crops, yam, cocoyam and cassava crop activities were found in their soles in the existing plan whereas crop mixtures were dominance in the optimal plan except cocoyam for the tenants’ category. However, optimal farm plans favoured fewer crops than in the existing plan. Cassava/melon, yam/maize and cocoyam/melon were the crop activities prescribed for an average land owner to maximize gross margin of N231,119.40K as against N190,265.00K in the existing plan (an increase of 21.48%) while for the farm tenants N190,671.30K was prescribed as optimal gross margin as against N184,600.00K (an increase of 3.29%). Yam/melon and Cassava/cocoyam/maize had the least tendency to depress farm income if forced into the plan for the land owners and farm tenants respectively. Farmers’ purchasing power would be enhanced given optimal crop production activity combination and land resource allocation. Keywords: Optimum, activities, crops, smallholder farmers

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Optimum resource allocation among selected smallholder root and tuber crops farmers in Abia State, Nigeria

Profit efficiency analysis of red onions production in Sironko district of Uganda

This study examined the resource use pattern for small scale arable crop-based farmer in Niger State, North central Nigeria during the 2009 cropping season considering available resources. Linear Programming model was used for optimizing gross margins. The results revealed a considerable divergence between the existing and optimum plans under both limited and borrowed capital situations. Results indicated that resources were not optimally allocated and after optimization, gross margins could be increased. Cereal-legume cropping patterns showed dominance in both the existing and optimum plans. As a result of inter variation in capital resource endowment and management, the gross margins were higher in the borrowed capital (N87,322.89/ha) as compared to the limited capital situation (N51,211.54/ha). The optimum plans prescribed more of cash-crop-based enterprises. The study recommended that farmers should organize farm resources as prescribed by the optimum plans. This should be complemented with strong financial support, farm advisory services and adequate supply of modern inputs at fairly competitive prices would enhance the prospects of the small holder farmers. Keywords : efficient, resource allocation, optimization, linear programming, gross margin

Modeling efficient resource allocation patterns for arable crop farmers in Niger state, Nigeria: A linear programming approach

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Modeling efficient resource allocation patterns for arable crop farmers in Niger state, Nigeria: A linear programming approach