Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"input use"”.
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Incentives for Adoption of Site -Specific Technologies Under Uncertainty: Economic and *Environmental Implications
… The theoretical model shows that ignoring the input availability uncertainty and risk preferences of farmers results in misleading estimates of impacts of SSCM on input use and yield, and overestimation of the impacts on quasi-rent differentials. Application of the model to adoption of SSCM in …
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Towards a Behavioral Theory of Farmer Decision -Making: The Value of Site -Specific Information in Agricultural Production
… with the value of SSI. Furthermore, mean input use is found to decrease as SSI becomes more informative. The empirical results above have important implications with respect to nitrogen information management, environmental management, and predicting adoption behavior.
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A case study of investment in agricultural sustainability: adoption and policy issues for nitrogen pollution control in the Chesapeake Bay drainage
… agricultural nitrogen pollution control from an input management perspective. Using an economic and physical model, seven production systems and nitrogen management strategies are compared in terms of input use, profitability, and nitrogen loss potential. Results suggest that several of the …
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Factors affecting efficiency of smallholder cotton producers in Zambia
… farmers through increased food security and household income. However, Zambia and other Sub-Saharan Africa countries are faced with low agricultural productivity and that undermines the potential the sector has of reducing poverty. Focusing on smallholder cotton producers of Zambia, the study …
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Three essays on weather shocks, nutrition and forests
… particularly harmful effects for poor rural households in developing countries. In this dissertation, I determine how forests affect a household's ability to cope with shocks, estimate how agricultural input use changes after shocks, and explore a novel explanation for high rates of …
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Efficiencies of small-scale sugarcane growers in the King Cetshwayo District Municipality of KwaZulu-Natal
… second objective was to determine the chemical-input use efficiency, which was determined using the Slack-Based Measure (SBM) approach of the sampled cane growers. The third objective was to employ the Truncated Regression model to identify key socio-economic sources of technical efficiency; …
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The impact of financial constraints on the local price of farm land
… The proportion of owned versus borrowed wealth used to meet the purchase commitment is reflected in the down-payment ratio. The larger the down-payment ratio, the greater the proportion of owned wealth employed in the acquisition of the land. The availability of wealth from either or both …
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Transformation towards a more sustainable agricultural system in Indonesia: Empirical essays on the role of information and endorsement
… or the disadoption of excessive chemical input use or land burning. Policy makers interested in making agricultural production more sustainable need to understand what encourages the uptake of sustainable practices and what is effective in reducing unsustainable practices. This thesis …
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Effect of rotation, organic inputs and tillage on crop performance and soil quality in conventional and low-input rotations in central Iowa
Even though the benefits of low external input (LEI) cropping systems to crops and soils are well recognized the specific links between cropping practices and associated soil quality and crop responses are not yet clear. In the Marsden plots in central Iowa, crop yields and input use efficiency …
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An integrated plant nutrition system (IPNS) for corn and cannabis in the Mid-Atlantic USA
… are open when considering the reutilization of inputs in farming areas. Non-renewable resources have been transformed or relocated from the air, water and land into the system and are flowing out as wastes rather than reusable, recyclable resources. Therefore, current trends in agriculture have …
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A farm-level model to evaluate the impacts of current energy policy options
… to show the value of farm-level studies as useful additions to aggregated, national or regional models that are used to analyse the effects of policy on an agricultural economy. A literature survey (Chapter 2) illustrates many applications of the aggregated approach to the problems that …
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Characterization of the effect of nitrogen deficiency on above-ground plant phenotypes in relation to root complexity in maize
… these types of problems and desire for greater input use efficiency have led to demand for crops with improved N use efficiency (NUE) to allow reduced N fertilizer application rates and subsequently lower N pollution. It is well known that roots are responsible for N uptake by plants, but it is …
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Dynamics of firm-level export diversification in Botswana
… its export bundle. While much analysis has focused on the product composition of exports, little focus has been placed on the role that firms play in driving the composition of exports in Botswana over time. This thesis fills this gap in the literature. The analysis draws on various unique and …
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Incentivizing Sustainable Agriculture in Indonesia: Empirical Essays on the Role of Social Norms and Information Provision
… and economic challenges, including excessive use of chemical fertilizers, soil nutrient imbalances, and long-term land degradation. In response, the Indonesian government introduced several sustainability-focused policies, including Integrated Pest Management (IPM), Farmer Field Schools (FFS), …