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	Provedor de dados Bragantia (1) Autor Rosolem,Ciro Antonio (1) Witacker,João Paulo Teixeira (1) Palavra-chave Gossypium hirsutum (1) Nutrição potássica (1) Qualidade da fibra (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2007 (1) País Brazil (1) Idioma Português (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 262 Primeira ... 1 2 3 4 5 6 7 8 9 ... Última Explaining Variation in Farm and Farm Business Performance in Respect to Farmer Segmentation Analysis AgEcon Wilson, Paul; Harper, Nicholas; Darling, Richard. Results from a pilot application of Defra’s segmentation model applied to the Farm Business Survey for England are presented. Interviews with 750 FBS co-operators during 2010, using a discursive approach, classified co-operators into one of five segmentation groups: Custodians (14.0%); Lifestyle Choice (7.2%); Pragmatists (53.3%); Modern Family Business (21.1%); Challenged Enterprises (4.4%). On average, Modern Family Businesses operated the largest land area, achieved the greatest farm financial (and agricultural) output, and Farm Business Income (FBI), whilst the Lifestyle Choice segment returned the lowest average FBI. Variation in regional tendencies across the segmentation groups was observed, with variation also noted for forms of business, LFA and... Tipo: Conference Paper or Presentation Palavras-chave: Behaviour; Segmentation; Income; Output; Agriculture; Farm Management; D22; Q12; Q14; Q15; Q16; R52. Ano: 2011 URL: http://purl.umn.edu/108783 The Impact of Decoupled Payments on the Cost of Operating Capital AgEcon Kropp, Jaclyn D.; Whitaker, James B.. We estimate the impact of direct payments under the 2002 Farm Act on the credit terms of farm operators, specifically the interest rate on short-term operating loans. In the analysis, we control for farm financial characteristic, farm operator characteristics, and other factors. Using data from the Agricultural Resource Management Survey (ARMS) for the year 2007, we show that as the proportion of base acres to total operated acres increases, interest rates decline by a small but statistically significant amount. This implies that direct payments lead to lower operating costs through better credit terms. Lower operating costs may in turn allow some farmers to produce on land that would otherwise be unprofitable to operate. Tipo: Conference Paper or Presentation Palavras-chave: Decoupled payments; Credit rationing; Agricultural and Food Policy; Agricultural Finance; International Relations/Trade; Q15; Q17; Q18. Ano: 2009 URL: http://purl.umn.edu/49311 Agricultural land management strategies to reduce phosphorus loads in the Gippsland Lakes, Australia AgEcon Roberts, Anna M.; Pannell, David J.; Doole, Graeme J.; Vigiak, Olga. A target to reduce phosphorus flows into the Gippsland Lakes in south-eastern Australia by 40 per cent to improve water quality has previously been established by stakeholders. An integrated analysis at the catchment scale is undertaken to assess the agricultural land management changes required to achieve this target, and to evaluate the cost-effectiveness of these changes. It appears technically feasible to achieve a 40 per cent reduction in P load entering the lakes, but the least-costly way of doing so would require around A$1 billion over 20 years, a dramatic increase in the current levels of funding provided for management. On the other hand, a 20 per cent P reduction could be achieved at much lower cost: around $80 million over 20 years and... Tipo: Working or Discussion Paper Palavras-chave: Benefit: cost analysis; Dairy; Diffuse source; Trade-offs; Environmental Economics and Policy; Resource /Energy Economics and Policy; Q15; Q25; Q53; Q57. Ano: 2010 URL: http://purl.umn.edu/102454 Cross Compliance: what about compliance? AgEcon Stefani, Gianluca; Giudicissi, Eufrasia. We reviewed some moral hazard (MH) models applied to agri-environmental policies and identified the main methodological aspects of the literature on this topics. Imperfect vs incomplete monitoring , static vs dynamic and single vs multiple agents models are the main lines along which the literature has been organised analysing each component of a MH model. Most papers point out the role of farmers' risk aversion in mitigating MH. Others highlight that the observed high rate of compliance is still somewhat paradoxical given current enforcement strategies with low fines and monitoring levels. Cross compliance confirm these findings and urges further studies on dynamic models and farmers' non profit maximising behaviour. Tipo: Conference Paper or Presentation Palavras-chave: Cross-compliance; Moral Hazard; Enforcement; Agri-environmental schemes; Agricultural and Food Policy; Q15; Q58; D82. Ano: 2011 URL: http://purl.umn.edu/99597 The Survival of Small-scale Agricultural Producers in Asia, particularly Vietnam: General Issues Illustrated by Vietnam's Agricultural Sector, especially its Pig Production AgEcon Tisdell, Clement A.. Economic growth in more developed countries has resulted in farms increasing their scale of production and becoming more specialized in their production. The sizes of farms have tended to increase, agricultural production has become more capital-intensive, and the percentage of the workforce employed in agriculture has shown a falling trend. This process has been brought about by the operation of market systems and has reduced the number of small-scale agricultural producers. Asia still has a huge number of small-scale agricultural producers. As Asian countries experience economic growth and as market systems become more established in Asia, the survival of Asia’s small-scale agricultural producers is likely to be threatened. Since these producers are... Tipo: Working or Discussion Paper Palavras-chave: Agricultural policies; Asia; Economies of scale; Farm sizes; Household agriculture; Industrial agriculture; Pigs; Vietnam; Agricultural and Food Policy; International Development; Q1; Q11; Q12; Q15; Q18. Ano: 2009 URL: http://purl.umn.edu/90625 Institutional and Economic Dynamics of Water Users Cooperative (WUC) Societies in Cauvery Basin of Karnataka AgEcon Rohith, B.K.; Chandrakanth, Mysore G.. The economic and institutional dimensions of water users cooperative (WUC) societies have been analyzed with regards to performance, membership and transaction costs in forming organization in the Cauvery basin of Karnataka. Field data have been collected from presidents and members of 30 WUC societies in Tirumakudalu Narasipura taluk of Mysore, Karnataka. Using cluster analysis, these have been grouped into (i) well performing, (ii) moderately performing, and (iii) poorly performing WUC societies. To understand institutional and economic dimensions, the selected WUC societies have been grouped based on command area, membership and conjunctive use of water. The odds ratio determined using logit model has indicated that for every one chance of not willing... Tipo: Journal Article Palavras-chave: Water users cooperative society; Institutional economics; Water institutions; Cauvery Basin; Agricultural and Food Policy; Q13; Q15; Q25; K00. Ano: 2011 URL: http://purl.umn.edu/118231 Policies to Facilitate Conversion of Millions of Acres to the Production of Biofuel Feedstock AgEcon Epplin, Francis M.; Haque, Mohua. First-generation grain ethanol biofuel has affected the historical excess capacity problem in U.S. agriculture. Second-generation cellulosic ethanol biofuel has had difficulty achieving cost-competitiveness. Third-generation drop-in biofuels are under development. If lignocellulosic biomass from perennial grasses becomes the feedstock of choice for second- and third-generation biorefineries, an integrated system could evolve in which a biorefinery directly manages feedstock production, harvest, storage, and delivery. Modeling was conducted to determine the potential economic benefits from an integrated system. Relatively low-cost public policies that could be implemented to facilitate economic efficiency are proposed. Tipo: Journal Article Palavras-chave: Biomass; Bio-oil; Cellulosic; Drop-in fuels; Ethanol; Land-lease contract; Lignocellulosic; Pyrolysis; Switchgrass; Resource /Energy Economics and Policy; Q16; Q18; Q15; Q42. Ano: 2011 URL: http://purl.umn.edu/113532 Divergence between WTA and WTP Revisited: Livestock Grazing on Public Range AgEcon Sun, Lili; van Kooten, G. Cornelis; Voss, Graham M.. The research reported here provides further empirical support for the contention that there is a divergence between WTA and WTP. The conclusion is based on results from a 2002 survey of Nevada ranchers that asked about willingness to pay for public forage and WTA compensation to part with grazing rights. WTP and WTA are estimated simultaneously, with the estimators used to demonstrate a statistically significant divergence between WTP and WTA. The simultaneous estimation allows us to identify ranch characteristics that influence the discrepancy in valuations. Ranch size, public grazing allotment, financial distress, and long term commitment to ranching are all significant influences on the disparity. We interpret these results both with respect to general... Tipo: Working or Discussion Paper Palavras-chave: Contingent valuation methods; Dichotomous choice surveys; WTA versus WTP; Grazing rights and public forage; Agribusiness; Land Economics/Use; Q15; Q24; Q51. Ano: 2005 URL: http://purl.umn.edu/37014 Impacts of Federal Policies and Programs on Wetlands AgEcon Crosson, Pierre; Frederick, Kenneth D.. Human activities have resulted in the loss of about half of the original 221 million acres of wetlands in the conterminous 48 states. Federal laws, policies, and programs have had major impacts on the nation's wetland resources. Initially, they encouraged and subsidized the draining and filling of wetlands, the flooding of wetlands behind dams, and the diversion and alteration of streamflows to riparian wetlands. More recently, federal policies have been directed to conserving and preventing further net losses. The focus of this study is on the impacts of federal policies on riparian wetlands, i.e., those formed at the interface of rivers and streams and uplands and that require occasional flooding to maintain the health of their ecosystems. The study... Tipo: Working or Discussion Paper Palavras-chave: Wetlands; Land use; Agricultural policy; Water policy; Environmental Economics and Policy; Q15; Q25; R14. Ano: 1999 URL: http://purl.umn.edu/10579 Stakeholder involvement in water management using Object-oriented Bayesian networks and economic models in Spain. AgEcon Carmona, Gema; Varela-Ortega, Consuelo; Bromley, John. The Upper Guadiana basin, in Spain, presents important conflicts between the agricultural sector and the environment due to their competence for water resources. The high development of irrigation has led to the over-exploitation of the aquifers, which are the main source of water in the area, and to the loss of wetlands of high ecological value. The River Basin Authority (RBA) has recently designed a new water management plan which included a group of measures aimed at reducing water consumption. Our objective is the development, with the active participation of the stakeholders, of a decision support system composed of an economic model and an object-oriented Bayesian network, used to evaluate the trade-off between agricultural economy and the... Tipo: Conference Paper or Presentation Palavras-chave: Bayesian networks; Groundwater management; Stakeholder participation; Environmental Economics and Policy; Farm Management; Land Economics/Use; Resource /Energy Economics and Policy; Q15; Q25; Q56. Ano: 2009 URL: http://purl.umn.edu/49897 Analysis of profitability and risk in new agriculture in a Himalayan watershed by using dynamic non-linear programming model AgEcon Sharma, Rakesh Kumar; Sankhayan, Prem Lall; Singh, Ranveer. Cropping pattern in the Himalayan region of India has undergone a significant change in the recent past. Introduction of horticultural crops of vegetables, fruits and flowers have led to more intensive agriculture. Such a change, resulting in higher incomes and improvements of the overall living conditions has, however, been accompanied with increased income risk. This emphasises a need for proper analysis of the cropping pattern, at an appropriate scale, such as, a micro watershed. This was achieved by constructing a dynamic non-linear programming model incorporating appropriate objective function, constraints and crop and livestock activity budgets along with risk component present in the gross returns. The model was then solved under alternate policy... Tipo: Conference Paper or Presentation Palavras-chave: Cropping pattern; Gross margins; Himachal Pradesh; Optimization; Covariance; Crop Production/Industries; Farm Management; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy; Risk and Uncertainty; C61; Q12; Q15. Ano: 2009 URL: http://purl.umn.edu/51404 The Effect of the Housing Boom on Farm Land Values via Tax-Deferred Exchanges AgEcon Williamson, James M.; Brady, Michael P.; Durst, Ron L.. This project examines Section 1031 of the Internal Revenue Code and agriculture land exchanges. Stakeholders in rural communities and agriculture are particularly interested in Section 1031 because the recent growth in transaction values of farmland may have, in part, been stimulated by Section 1031 land exchanges. Further, although many have speculated that such exchanges are widely used, little empirical research exists about the provision. We examine the theory of exchanges and develop a theoretical premium value for exchanges. We also present the first evidence of like-kind exchanges involving farmland using Federal tax data. Tipo: Conference Paper or Presentation Palavras-chave: Like-Kind Exchange; Capital Gains Tax; Agricultural Land; Land Economics/Use; Public Economics; Q15; H24. Ano: 2009 URL: http://purl.umn.edu/49299 Contracts, Transaction Costs and Agricultural Production in the Pampas AgEcon Lema, Daniel. This paper presents an analysis of agricultural contracts using a transaction costs approach. We contend that in a context of modern agriculture, with well defined property rights, agricultural contracts must balance costs and benefits, aligning tenant and landlord incentives towards a similar objective. The study debates the potential effects of tenancy status and duration of contracts, over soil conservation and input use. We present empirical evidence about the effects over the soil and input use in tenant (fixed rent or sharecropping) and owner-operator farms using farm level data from the 2002 National Agricultural Census of Argentina. The empirical results show some differential effects but do not support a general and clear negative effect for... Tipo: Conference Paper or Presentation Palavras-chave: Contracts; Agriculture; Transaction Costs; Sharecropping; Property Rights; Land Tenancy; Production Economics; D2; Q15. Ano: 2006 URL: http://purl.umn.edu/25420 Sources of Agricultural Productivity Growth in Central Asia: The Case of Tajikistan and Uzbekistan AgEcon Lerman, Zvi; Sedik, David J.. The paper examines agricultural production and productivity growth in two Central Asian countries – Tajikistan and Uzbekistan. Both countries are characterized by a significant shift of resources from the traditional Soviet model of collective agriculture to more market-compliant individual and family farming. In both countries, the beginning of the policy-driven switch to family farming around 1997 coincided with the beginning of recovery in agriculture, namely resumption of agricultural growth after a phase of transition decline since 1991. In addition to growth in total agricultural production, we also observe significant increases in productivity of both land and labor since 1997. These observations suggest that productivity growth may be attributable... Tipo: Working or Discussion Paper Palavras-chave: Agricultural productivity; Agricultural growth; Family farms; Corporate farms; Comparative performance; Agrarian reforms; Transition countries; Central Asia; Tajikistan; Uzbekistan; Agricultural and Food Policy; Community/Rural/Urban Development; Food Security and Poverty; International Development; Land Economics/Use; Productivity Analysis; P27; P31; P32; Q15; R14. Ano: 2009 URL: http://purl.umn.edu/54713 Potential Benefits of Bt Brinjal in India — An Economic Assessment AgEcon Kumar, Sant; Lakshmi Prasanna, P.A.; Wankhade, Shwetal. The potential economic benefits of Bt brinjal hybrids in terms of yield gain, reduction in insecticide-use, and increase in net returns per hectare have been reported in this study. Results have shown that adoption of Bt brinjal hybrids would provide yield gain of 37 per cent and reduction in total insecticide-use of about 42 per cent over non-Bt hybrids. Other benefits like increase in additional brinjal production (30 thousand tonnes), savings from insecticides (` 47 crore) against Fruit and Shoot Borer (FSB), increase in net returns (` 11029/ha), and reduction in price of brinjal output (3%), etc. would be at 15 per cent adoption level. With increased adoption level of 60 per cent of Bt brinjal hybrids would provide, additional production of 119... Tipo: Journal Article Palavras-chave: GM food crop; Bt brinjal hybrid; Fruit and shoot borer; Economic benefits; Agricultural and Food Policy; Q11; Q16; Q15. Ano: 2011 URL: http://purl.umn.edu/109420 APPROACHING BEGINNING FARMERS AS A NEW STAKEHOLDER FOR EXTENSION AgEcon Meyer, Lee; Hunter, Jennifer; Katchova, Ani L.; Lovett, Sarah; Thilmany, Dawn D.; Sullins, Martha; Card, Adrian. Tipo: Journal Article Palavras-chave: New Farmer; Farm Transitions; Business Planning; Direct Marketing; Extension Service; Capacity Building; Mentoring; Farm Management; Teaching/Communication/Extension/Profession; Q13; Q15; Q16. Ano: 2011 URL: http://purl.umn.edu/109478 Opinion publica sobre la multifuncionalidad del regadío: el caso de Castilla y Leon AgEcon Gomez-Limon, Jose Antonio; Gomez-Ramos, Almudena. This paper analyses the demands from the society of Castilla y León (Spain) regarding its agricultural sector through the valuation of the relevance of its productive and non-productive functions. Additionally, it assesses the level of social satisfaction concerning the performance of these functions by irrigated agriculture in this region. For this purpose primary data colleted through a survey has been used. Results obtained show that the average citizen does not perceive a higher utility from irrigated agriculture compared with the whole agricultural sector. For these agricultural systems the social function is the element of multifunctionality considered most relevant regarding the perceived social welfare. Resumen Este trabajo analiza las demandas... Tipo: Journal Article Palavras-chave: Multifunctionality; Social demand; Irrigated agriculture; Public perception; Castilla y Leon; Crop Production/Industries; Q25; Q15. Ano: 2007 URL: http://purl.umn.edu/8001 Integrating small farms in agent based models AgEcon Roder, Norbert; Kantelhardt, Jochen. In German agriculture structural change is mainly a result of the outmigration of smaller farms from the sector. The decisions of these farmers to leave or stay in the sector, are not based solely on financial data and market expectations. Other aspects are important such as the preservation of the cultural landscape, the continuation of the family tradition, or self-realisation. Only if these goals are adequately integrated into land use models, one can hope that the type and magnitude of reactions predicted by the model will be similar to that observed in reality. The main goal of this paper is to present a model approach that allows for the integration of non-monetary aspects into an agri-economic land use model. The approach is tested for a sample of... Tipo: Conference Paper or Presentation Palavras-chave: Farmer attitude; Linear programming; Agent based modelling; Land market; Agricultural and Food Policy; Consumer/Household Economics; Land Economics/Use; Q12; Q15; R14. Ano: 2009 URL: http://purl.umn.edu/52826 How Well Can Markets for Development Rights Work? Evaluating a Farmland Preservation Program AgEcon McConnell, Virginia D.; Kopits, Elizabeth; Walls, Margaret. Transferable development rights (TDRs) can be used as a local planning tool to preserve land for particular uses. TDRs separate ownership of the right to develop land from ownership of the land itself, creating a market in which the development rights can be bought and sold. Landowners who sell TDRs permanently preserve their land in an undeveloped state; those TDRs are then used to increase the density of development elsewhere. In this paper, we evaluate a TDR program for preserving farmland in Calvert County, Maryland. We evaluate the performance of the TDR market over the 23-year life of the program by looking at the number of transactions and TDRs sold and the level and dispersion of prices over time. We also look closely at the influence of the county... Tipo: Working or Discussion Paper Palavras-chave: Land use; Farmland preservation; Development rights; Land Economics/Use; Q15; Q24; R140. Ano: 2003 URL: http://purl.umn.edu/10659 Population Growth and Land Use Dynamics along Urban–Rural Gradient AgEcon Polyakov, Maksym; Zhang, Daowei. In this study we apply a spatial conditional logit model to determine factors influencing land cover change in three contiguous counties in West Georgia between 1992 and 2001 using point (pixel) based observations of land characteristics. We found that accessibility to population and population growth affect not only development of rural lands and transition between agricultural and forestry uses, but also influence changes between forest types. The model could be used to project land use–land cover change at watershed or subwatershed level and thus serve as a valuable tool for county and city planners. Tipo: Journal Article Palavras-chave: Conditional logit; Land use change; Population gravity index; Spatial lag; Agribusiness; Labor and Human Capital; Land Economics/Use; Q15; Q23; R14. Ano: 2008 URL: http://purl.umn.edu/47205 Registros recuperados: 262 Primeira ... 1 2 3 4 5 6 7 8 9 ... Última

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