Downsizing an Agricultural Field Experiment Alters Economic Results: A Case Study

2004 ◽  
Vol 26 (2) ◽  
pp. 255-265 ◽  
Author(s):  
Douglas L. Young ◽  
Tae-Jin Kwon ◽  
Frank L. Young
Keyword(s):  
Field Experiment ◽  
Agricultural Field

scholarly journals Direct measurement of selected soil services in a drained agricultural field: Methodology development and case study in Saclay (France)

2020 ◽  
Vol 42 ◽  
pp. 101088 ◽  
Author(s):  
Maha Chalhoub ◽  
Benoit Gabrielle ◽  
Julien Tournebize ◽  
Cédric Chaumont ◽  
Pascal Maugis ◽  
...  
Keyword(s):  
Direct Measurement ◽  
Agricultural Field ◽  
Methodology Development ◽  
Field Methodology

scholarly journals Identification and Specific Detection of a Novel Pseudomonadaceae Cluster Associated with Soils from Winter Wheat Plots of a Long-Term Agricultural Field Experiment

2006 ◽  
Vol 72 (1) ◽  
pp. 37-43 ◽  
Author(s):  
Manuel Pesaro ◽  
Franco Widmer
Keyword(s):  
Winter Wheat ◽  
Field Experiment ◽  
Management Systems ◽  
Target Range ◽  
Rrna Gene ◽  
Agricultural Field ◽  
Soil Dna ◽  
Genetic Profiling ◽  
Microbial Groups

ABSTRACT The genus Pseudomonas (sensu stricto) represents a group of microorganisms directly involved in functions conferring plant health. We performed a study in the DOK long-term agricultural field experiment on the basis of previously published Pseudomonas-selective PCR primers in order to investigate the community structure of the microbial groups defined by the target range of these primers. Three different agricultural management systems, i.e., conventional, biodynamic, and bio-organic, along with mineral and unfertilized controls were investigated, with each system planted with either winter wheat or a grass-clover ley. Amplified small-subunit rRNA gene fragments were analyzed using the genetic profiling techniques restriction fragment length polymorphism (RFLP) and denaturing gradient gel electrophoresis (DGGE), revealing distinct differences between soils planted with winter wheat and grass clover but only minor differences between the management systems. Phylogenetic analyses of 59 clone sequences retrieved from bio-organic and unfertilized systems identified sequences related to Pseudomonas fluorescens and a novel cluster termed Cellvibrio-related Pseudomonadaceae (CRP). The CRP clones were exclusively isolated from winter wheat soil samples and were responsible for the crop-specific differences observed in RFLP and DGGE profiles. New primers were designed for the amplification of CRP targets directly from soil DNA, yielding strong signals exclusively for winter wheat soils. We concluded that crop-associated CRP exist in agricultural soils and that genetic profiling followed by specific probe design represents a valuable approach for identification as well as sensitive and rapid monitoring of novel microbial groups in the environment.

scholarly journals A Case Study of the Weather Research and Forecasting Model Applied to the Joint Urban 2003 Tracer Field Experiment. Part 1: Wind and Turbulence

2015 ◽  
Vol 158 (2) ◽  
pp. 285-309 ◽  
Author(s):  
Matthew A. Nelson ◽  
Michael J. Brown ◽  
Scot A. Halverson ◽  
Paul E. Bieringer ◽  
Andrew Annunzio ◽  
...  
Keyword(s):  
Field Experiment ◽  
Weather Research And Forecasting ◽  
Forecasting Model ◽  
Weather Research

scholarly journals Intellectual property rights related to the genetically modified glyphosate tolerant soybeans in Brazil

2011 ◽  
Vol 83 (2) ◽  
pp. 719-730 ◽  
Author(s):  
Roberta L Rodrigues ◽  
Celso L. S Lage ◽  
Alexandre G Vasconcellos
Keyword(s):  
Intellectual Property ◽  
Patent Protection ◽  
Genetically Modified ◽  
International Treaties ◽  
Agricultural Field ◽  
Industrial Property ◽  
Genetically Modified Soybean ◽  
Variety Protection ◽  
Complex Scenario

The present work analyzes the different modalities of protection of the intellectual creations in the biotechnology agricultural field. Regarding the Brazilian legislations related to the theme (the Industrial Property Law - no. 9. 279/96 and the Plant Variety Protection Law - no. 9. 456/97), and based in the international treaties signed by Brazil, the present work points to the inclusions of each of them, as well as to their interfaces using as reference the case study of glyphosate tolerant genetically modified soybean. For this case study, Monsanto's pipelines patents were searched and used to analyze the limits of patent protection in respect to others related to the Intellectual Property (IP) laws. Thus, it was possible to elucidate the complex scenario of the Intellectual Property of the glyphosate tolerant soybeans, since for the farmer it is hard to correlate the royalties payment with the IP enterprise's rights

scholarly journals Interpretation of soil erosion in a Polish loess area using OSL, 137Cs, 210Pbex, dendrochronology and micromorphology – case study: Biedrzykowice site (s Poland)

2019 ◽  
Vol 46 (1) ◽  
pp. 57-78 ◽  
Author(s):  
Grzegorz Poręba ◽  
Zbigniew Śnieszko ◽  
Piotr Moska ◽  
Przemysław Mroczek ◽  
Ireneusz Malik
Keyword(s):  
World War Ii ◽  
Soil Erosion ◽  
Middle Ages ◽  
Agricultural Field ◽  
World War ◽  
Field Range ◽  
Loess Area ◽  
Erosion Processes ◽  
The Mean

Abstract Loess areas used for agriculture are susceptible to soil erosion. The intensive process of soil erosion in Polish loess areas began with the onset of the Neolithic and has continued intermittently until today. This work presents the results of soil erosion from simultaneous use of the 137Cs and 210Pbex methods on an agricultural field located on loess slope. Moreover, to establish the age of accumulated sediment connected with water slope erosion, OSL dating, selected physicochemical and micromorphological analyses were applied. The reference values of the 137Cs and 210Pbex fallout for the studied site (Biedrzykowice, the Proszowice Plateau, Małopolska Upland) equal 2627 (45% connected with Chernobyl) and 4835 Bq·m–2, respectively. The results of the 137Cs and 210Pbex inventories measured for the agricultural field range from 730 to 7911 and from 1615 to 11136 Bq·m–2, respectively. The mean soil erosion is about 2.1 kg·m–2·a–1 (about 1.4 mm·a–1). The accumulation of the colluvial sediments started in the Neolithic and drastically increased in the Middle Ages. The examined gully catchment in Biedrzykowice has probably developed quite rapidly as a result of increased erosion. This resulted in the abandonment of this area as farmland and, consequently, in the minimization of water erosion on the slope due to the entrance of woody vegetation in this area. Erosion processes were highly intensified during the last 70 years as a result of deforestation after World War II and intensive agricultural reuse of this area after a break, as indicated by isotope measurements and dendrochronology.

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