نتایج جستجو برای: agricultural fields

تعداد نتایج: 342254  

2007
Hailin Li

Agricultural information technology, especially virtual reality(VR) technology, will act the important roles in agricultural modernization and realm. Computer science and IT are both playing important roles in the development of agriculture and rural areas of the world. Combining agriculture science with IT and VR, the virtual agriculture technology explored new ways of studying and applying ag...

2004
Ville Vepsäläinen Timo Pakkala Markus Piha Juha Tiainen

The ortolan bunting Emberiza hortulana is a bird species that has shown a particularly dramatic decline during recent decades within the agricultural areas of Europe. We studied the population density changes and environment associations of the ortolan bunting within agricultural landscapes in southern Finland, from territory to landscape scale, in 1984–2002. The crash of the ortolan bunting po...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2001
K S Oberhauser M D Prysby H R Mattila D E Stanley-Horn M K Sears G Dively E Olson J M Pleasants W K Lam R L Hellmich

To assess the likelihood that monarch larvae will be exposed to Bacillus thuringiensis (Bt) pollen, we studied milkweed and monarch densities in habitats which comprise much of the land available to breeding monarchs, e.g., cornfields, cornfield edges, other agricultural fields, and nonagricultural areas, in four regions of the monarch breeding range. We found that monarchs use milkweed in corn...

2008
Koji Sugahara

In agriculture, it is required to establish and integrate food traceability systems and risk management systems in order to improve food safety in the entire food chain. The integrated traceability system for agricultural products was developed, based on innovative technology of RFID and mobile computing. In order to identify individual products on the distribution process efficiently, small RF...

2016
Tomoko M. Nakanishi

More than 4 years has passed since the accident at the Fukushima Nuclear Power Plant. Immediately after the accident, 40 to 50 academic staff of the Graduate School of Agricultural and Life Sciences at the University of Tokyo created an independent team to monitor the behavior of the radioactive materials in the field and their effects on agricultural farm lands, forests, rivers, animals, etc. ...

2016
Chris R. Smith Peter L. Blair Charlie Boyd Brianne Cody Alexander Hazel Ashley Hedrick Hitesh Kathuria Parul Khurana Brent Kramer Kristin Muterspaw Charles Peck Emily Sells Jessica Skinner Cara Tegeler Zoe Wolfe

The acreage planted in corn and soybean crops is vast, and these crops contribute substantially to the world economy. The agricultural practices employed for farming these crops have major effects on ecosystem health at a worldwide scale. The microbial communities living in agricultural soils significantly contribute to nutrient uptake and cycling and can have both positive and negative impacts...

Journal: :Research in Computing Science 2016
C. S. Malarkodi Elisabeth Lex Sobha Lalitha Devi

Agricultural data have a major role in the planning and success of rural development activities. Agriculturalists, planners, policy makers, government officials, farmers and researchers require relevant information to trigger decision making processes. This paper presents our approach towards extracting named entities from real-world agricultural data from different areas of agriculture using C...

2010
Robert G. Hartzler

The role of common milkweed in the lifecycle of the monarch butterfly has increased interest in the presence of this weed in the north central United States. An initial survey conducted in 1999 found that low densities of common milkweed occurred in approximately 50% of Iowa corn and soybean fields. In 2009, common milkweed was present in only 8% of surveyed fields, and the area within infested...

2016
Todd A Gaines Abigail L Barker Eric L Patterson Philip Westra Eric P Westra Robert G Wilson Prashant Jha Vipan Kumar Andrew R Kniss

Glyphosate-resistant (GR) Kochia scoparia has evolved in dryland chemical fallow systems throughout North America and the mechanism of resistance involves 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) gene duplication. Agricultural fields in four states were surveyed for K. scoparia in 2013 and tested for glyphosate-resistance level and EPSPS gene copy number. Glyphosate resistance was co...

2009
J. Kiesel

Even though soil loss in the lowlands imposes not as much a restriction on land use and agricultural productivity as in erosion affected mountainous areas, the input of fine sediment into the rivers and streams is a concern due to water quality issues and substrate siltation. Drains, river banks and agricultural fields are the three main sources of fine sediment in lowland regions. For a succes...

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