نتایج جستجو برای: agricultural productivity

تعداد نتایج: 179986  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2010
Allison M Thomson Katherine V Calvin Louise P Chini George Hurtt James A Edmonds Ben Bond-Lamberty Steve Frolking Marshall A Wise Anthony C Janetos

Land-use change to meet 21st-century demands for food, fuel, and fiber will depend on many interactive factors, including global policies limiting anthropogenic climate change and realized improvements in agricultural productivity. Climate-change mitigation policies will alter the decision-making environment for land management, and changes in agricultural productivity will influence cultivated...

2012
Paul E. McNamara John M. Ulimwengu Kenneth L. Leonard

The link between good health and economic prosperity is well established and can be detected in numerous measures, such as increased income, wages, efficiency, and productivity. While the link can readily be seen in descriptive statistics, it is another matter to disentangle the precise nature of the connection. It is likely that causality runs in both directions, and both health and prosperity...

Journal: :Journal of proteomics 2013
Mark V Boggess John D Lippolis William J Hurkman Clifton K Fagerquist Steve P Briggs Aldrin V Gomes Pier Giorgio Righetti Kumar Bala

UNLABELLED Increase in the world population has called for the increased demand for agricultural productivity. Traditional methods to augment crop and animal production are facing exacerbating pressures in keeping up with population growth. This challenge has in turn led to the transformational change in the use of biotechnology tools to meet increased productivity for both plant and animal sys...

Journal: Journal of Nuts 2019

Investigation of factors affecting total and partial productivity with applying these factors for reforming producers' economical/ technical management may provide a proper base for enhancing productivity and profitability as well, and then leading a more sustainable situation for Pistachio orchards in the future. In this paper with respect to scattering type of statistical population, a multi ...

2014
Hyojung Lee

This paper shows how agricultural productivity shocks can generate large industrial output fluctuations in poor countries, using a static general-equilibrium model with Stone-Geary preferences. A negative shock to agricultural productivity increases food prices, which affects manufacturing output through two channels: (1) meeting subsistence requirements in the face of rising food prices causes...

2013
Xiaofei Li Raymond J.G.M. Florax Brigitte S. Waldorf

The study investigates the role of agriculture in the process of urbanization. According to Matsuyama (1992), the relationship between agricultural productivity and urbanization depends on the economic openness. In closed economies the relation is positive while for open economies it is negative. This paper empirically tests the role of agricultural productivity on a country’s level of urbaniza...

2017
Metin M. Cosgel Metin M. Coşgel

This paper provides standardized estimates of labor productivity in arable farming in selected regions of the early Ottoman Empire, including Jerusalem and neighboring districts in eastern Mediterranean; Bursa and Malatya in Anatolia; and Thessaly, Herzegovina, and Budapest in eastern Europe. I use data from the tax registers of the Ottoman Empire to estimate grain output per worker, standardiz...

2005
PENNI KORB

Government agricultural programs have a variety of goals, among them is preserving the family farm (U.S. Department of Agriculture 2003, pp. 18–20). While no single program is dedicated to maintaining a certain type of farm structure, program features are sometimes designed so as not to disadvantage family farms. For example, dollar limits may be placed on payments that a single person can rece...

2010
J. Piesse C. Thirtle

The relationships between basic and applied agricultural R&D, developed and developing country R&D and between R&D, extension, technology and productivity growth are outlined. The declining growth rates of public R&D expenditures are related to output growth and crop yields, where growth rates have also fallen, especially in the developed countries. However, growth in output value per hectare h...

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