نتایج جستجو برای: agricultural systems

تعداد نتایج: 1272109  

Abdulazeez Muhammad-Lawal Adekola Olabisi Fatimat Adekunle Dayo Omotesho Kemi Funmi

The study carried out an assessment of agricultural land management practices in food crops production among small scale farmers in Kwara Sate, Nigeria. Specifically, the study determined the socio economic characteristics of crop farmers in Kwara State; ascertained the cropping patterns common among them; highlighted the soil conservation methods adopted by the farmers; examined the relationsh...

2013
Devendra S. Chaudhari

76 Abstract— Monitoring of environmental factors is very important over the last few decades. In particular, monitoring agricultural environments for various factors such as temperature, moisture, humidity along with other factors can be of more significance. A traditional approach to measuring these factors in an agricultural environment meant individuals manually taking measurements and check...

2011
Dimitra-Nefeli Makri Athina Skandalou Vicky Manthou Maro Vlachopoulou

The agricultural sector plays a crucial role in the Greek economy. Cooperatives are an integral part of the agricultural sector and the logistics cost impacts the pricing policy of the agricultural products, taking into consideration the value added of all trading partners along the supply chain. Many governments all over Europe pay special attention to this issue trying to make agriculture pro...

2018
Gabriela Dutrénit Alexandre O Vera-Cruz

As a result of the importance acquired by the approach to the innovation systems in theory and policy,5,6 in recent years, the study of Innovation Intermediary Organisations (IIOs) has gained great interest. The OIIs are perceived as important agents in connecting knowledge supply and demand in the national systems of innovation (NSI).1 The authors highlight some functions that these organisati...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Mathieu Sebilo Bernhard Mayer Bernard Nicolardot Gilles Pinay André Mariotti

Increasing diffuse nitrate loading of surface waters and groundwater has emerged as a major problem in many agricultural areas of the world, resulting in contamination of drinking water resources in aquifers as well as eutrophication of freshwaters and coastal marine ecosystems. Although empirical correlations between application rates of N fertilizers to agricultural soils and nitrate contamin...

2011
Emile A. Frison

Agricultural biodiversity has hitherto been valued almost exclusively as a source of traits that can be used in scientific breeding programs to improve the productivity of crop varieties and livestock breeds. We argue that it can make a far greater contribution to increased productivity. In particular, a wider deployment of agricultural biodiversity is an essential component in the sustainable ...

Journal: :Computers & Industrial Engineering 2016
Kamal Lamsal Philip C. Jones Barrett W. Thomas

The best way to organize the logistics of harvesting agricultural crops requires considering not only the fact that agricultural commodities in general are highly perishable, but also the fact that the organizational structure of the agricultural system in question can vary from crop to crop and from region to region within a single crop. This paper develops a model for planning the movement of...

2006
Martin van Ittersum Frank Ewert Johanna Alkan Olsson Erling Andersen Irina Bezlepkina Floor Brouwer Marcello Donatelli Guillermo Flichman Thomas Heckelei Lennart Olsson Alfons Oude Lansink Andrea Rizzoli Tamme van der Wal Jacques Wery

Agricultural systems continuously evolve and are forced to change as a result of a range of global and local driving forces. Agricultural and environmental policies are increasingly designed to contribute to the sustainability of agricultural systems and to enhance contributions of agricultural systems to sustainable development at large. The effectiveness and efficiency of such polices in real...

2009
Zongzhang Li Xiaomin Liu

This paper studies the effects of rural infrastructure development on agricultural production technical efficiency, using data from the second agricultural census of China. Employing Data Envelopment Analysis, this paper first estimates agricultural production technical efficiency of each administrative area of China. A Tobit model is then applied to study the effects on agricultural production...

2007
Kiyotada Hayashi

This chapter reviews the multicriteria analysis applied to the selection problems in agricultural systems. It also discusses life cycle impact assessment (LCIA) from the decision analytic framework. Special attention is paid to the attributes (evaluation criteria) used for evaluating agricultural systems by considering their impacts on the environment. Problem structuring in decision analysis, ...

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