نتایج جستجو برای: agricultural researchers

تعداد نتایج: 272110  

2004
DON S. DOERING KAREN HOLMES MAGGIE POWELL

LAYOUT Each World Resources Institute report represents a timely, scholarly treatment of a subject of public concern. WRI takes responsibility for choosing the study topics and guaranteeing its authors and researchers freedom of inquiry. It also solicits and responds to the guidance of advisory panels and expert reviewers. Unless otherwise stated, however, all the interpretation and findings se...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
هادی ویسی دانشگاه شهید بهشتی جعفر کامبوزیا دانشگاه شهید بهشتی مجتبی زارع دانشگاه شهید بهشتی مسعود حقیقی دانشگاه شهید بهشتی

the evidence from experiences and projects have revealed that favourable policy environment, resource conserving technologies, enabling external institutions, and local institutions and groups are the components and the preconditions needed for the successful implementation of sustainable agriculture. in this context, the mission of government is providing an appropriate institutional environme...

مجید افیونی, , حسین خادمی, , منوچهر امینی, ,

Heavy metals including cadmium (Cd) and lead (Pb) are entering agricultural soils from different routes and mainly due to human activities. Accumulated Cd and Pb in the soil would eventually enter the human and animal food chains and pose threat to their health. Therefore, evaluating heavy metal accumulation is necessary to prevent soil and environmental pollutions and should be considered by r...

1998
ROBERT J. McQUEEN

Machine learning has potential use in the understanding of information hidden in large datasets, but little is known about user perceptions of the use of the technology. In this study, datasets were solicited from agricultural researchers and processed using a machine learning workbench. The results were reported to the researchers, and then interviews were conducted with some of them to determ...

2004
Kleber Xavier Sampaio de Souza Joseph Davis Marcia Izabel Fugisawa Souza

In this paper, details of Embrapa’s Information Agency will be presented. It was designed as a space for exchange of knowledge among farmers, agricultural researchers and rural extension technicians. In the system, information is organized using two criteria. Firstly, every identified resource is cataloged in accordance to Dublin Core Metadata Standard. Secondly, a set of terms belonging to the...

1998
Ana Paula Manuel Santos Rui Manuel dos Santos

The working paper publication series is designed to provide users with timely research results while refinements and longer term synthesis are completed, and final reports are available. The preparation of working papers and their discussion with those who design and influence programs and policies in Mozambique is an important step in the Directorates's overall analysis and planning mission. C...

1998
Robert J. McQueen Geoffrey Holmes

Machine learning has potential use in the understanding of information hidden in large datasets, but little is known about user’s perceptions about the use of the technology. In this study, a number of datasets were solicited from agricultural researchers and processed using a machine learning workbench. The results were reported to the researchers, and then interviews were conducted with some ...

2010
Mimako Kobayashi Kimberly Rollins M. D. R. Evans

Copyright 2010 Northeastern Agricultural and Resource Economics Association It is especially important that researchers be cautious about presenting willingness to pay (WTP) point estimates to policy makers when the estimates are sensitive to subjective decisions that the researchers make during the estimation process. It is well known that WTP point estimates are sensitive to the choice regard...

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