Impact of Improved Seeds on Small Farmers’ Productivity, Income and Livelihood in Bara Locality of North Kordofan State, Sudan
Elkhalil Elnour Breima Ahmed, Maruod Elno Maruod, Elrashied Elimam Elkhidir, Tarig Elsheikh Mahmoud

Abstract
This study was designed to test and identify the impact of improved seeds on small farmers’ productivity, income and livelihood in Bara locality. Sixty households participants were randomly selected through a field survey during 2011 for 2008/2009, 2009/2010 and 2010/2011 cropping seasons. The study applied Multi-stage random sample technique. Based on existing farm situation and price level, the sampled farmers were obtained SDG 8604 as gross margin to cover all expenses. Results of this study also depicted that the required net income and offfarm income were 16293 and 11378 SDG, respectively. With respect to Linear Programming (LP) results, a total of SDG 8890 were obtained and all crops were entered and solved. The optimal plan and existing farm situation were changed by 3.3 and 5.6% for gross margin and cash income, respectively. Results of LP also indicated a positive change in production patterns of resource use; 3.3, 6.2, 3.5, 3.3 and 9.1% for land, cash income, labour, seeds supply and productivity, respectively under existing and optimal plan. Partial crop budgeting revealed that, all treatments were financially gave positive returns. Dominance analysis showed that cowpea ainelgazal, okra, roselle and sesame herhri crops were dominated by crops of millet ashana, watermelon, groundnut and guar, respectively. Marginal analysis exposed that, for every SDG 1.00 invested in improved seeds cultivation, farmer can expect to cover the SDG 1.00 and obtain an additional SDG 1.345; then, additional seed rate implies a further marginal rate of SDG 43.9. Sensitivity analysis for cost overrun and benefit shortfall by 10% indicated highly stability with marginal rate of returns of 1.22, 3.991 and 1.21 and 3.951% for watermelon and guar, respectively. The productivity of improved seeds compared to local ones was increased in some varieties and decreased among others. This study reached to some recommendations for improving crop productivity, production and livelihood of small farmers in Bara locality.

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