scholarly journals Statistical analysis and model building for a wheat production system in Chile

1973 ◽  
Author(s):  
Hernan R. Tejeda-Sanhueza
Keyword(s):  
Statistical Analysis ◽  
Production System ◽  
Model Building ◽  
Wheat Production

The Coaxium® Wheat Production System: A New Herbicide-Resistant System for Annual Grass Weed Control and Integrated Weed Management

2021 ◽  
Vol 32 (4) ◽  
pp. 151-157
Author(s):  
Raven A. Bough ◽  
Phillip Westra ◽  
Todd A. Gaines ◽  
Eric P. Westra ◽  
Scott Haley ◽  
...  
Keyword(s):  
Weed Management ◽  
Production System ◽  
Integrated Weed Management ◽  
State University ◽  
Wheat Production ◽  
Colorado State University ◽  
Herbicide Resistant ◽  
System A ◽  
Grass Weed ◽  
Global Food

The authors discuss the importance of wheat as a global food source and describe a novel multi-institutional, public-private partnership between Colorado State University, the Colorado Wheat Research Foundation, and private chemical and seed companies that resulted in the development of a new herbicide-resistant wheat production system.

scholarly journals Identification of productive systems of beef cattle in the northwest Region of Paraná, Brazil

2018 ◽  
Vol 39 (3) ◽  
pp. 1319 ◽  
Author(s):  
Cecilia Menchon Tramontini ◽  
Rejane Machado Cardozo ◽  
Jailson De Oliveira Arieira
Keyword(s):  
Statistical Analysis ◽  
Beef Cattle ◽  
Production System ◽  
Production Systems ◽  
Data Bank ◽  
The State ◽  
Northwestern Part ◽  
Multivariate Statistical ◽  
Cattle Breeders ◽  
Northwest Region

The purpose of this paper is to identify beef cattle production systems in the northwestern part of the state of Paraná, Brazil. To achieve this, interviews with 42 randomly selected cattle breeders were conducted between the months of November and December 2016 to describe the reality of the farms of this region. These interviews were carried out through a semi-structured questionnaire containing 49 questions pertaining to the reality of farms regarding herd management and property (nutrition, health, reproduction, and animal welfare), environment care, property area, and realized activities. Additionally, this questionnaire described the requirements of slaughterhouse for animal housing and the values obtained by the animals marketed according to the producers. After the interviews were carried out, a data bank was created using the software Microsoft Excel (ver. 2010). The data was later transferred to the software PASW 18 for Windows to perform multivariate statistical analyses. Defining the most representative variables was realizedwith multivariate statistical analysis, and these were represented by factor analysis, cluster analysis, and discriminant analysis to define the production systems. Through statistical analysis, three different systems were defined: the first production system has 18, the second production system five, and the third production system has 18 cattle breeders. The three systems found in the northwest region of the state of Paraná have different production and marketing characteristics, with the second system being superior to the other systems.

scholarly journals Environmental Impact Assessments of Integrated Food and Non-Food Production Systems in Italy and Denmark

Energies ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 849
Author(s):  
Lisa Mølgaard Lehmann ◽  
Magdalena Borzęcka ◽  
Katarzyna Żyłowska ◽  
Andrea Pisanelli ◽  
Giuseppe Russo ◽  
...  
Keyword(s):  
Global Warming ◽  
Life Cycle ◽  
Greenhouse Gas ◽  
Global Warming Potential ◽  
Production System ◽  
Food Production ◽  
Production Systems ◽  
Silvopastoral System ◽  
Wheat Production ◽  
Conventional Production

Given the environmental footprints of the conventional agriculture, it is imperative to test and validate alternative production systems, with lower environmental impacts to mitigate and adapt our production systems. In this study, we identified six production systems, four in Italy and two in Denmark, to assess the environmental footprint for comparison among the production systems and additionally with conventional production systems. SimaPro 8.4 software was used to carry out the life cycle impact assessment. Among other indicators, three significantly important indicators, namely global warming potential, acidification, and eutrophication, were used as the proxy for life cycle impact assessment. In Italy, the production systems compared were silvopastoral, organic, traditional, and conventional olive production systems, whereas in Denmark, combined food and energy production system was compared with the conventional wheat production system. Among the six production systems, conventional wheat production system in Denmark accounted for highest global warming potential, acidification, and eutrophication. In Italy, global warming potential was highest in traditional agroforestry and lowest in the silvopastoral system whereas acidification and eutrophication were lowest in the traditional production system with high acidification effects from the silvopastoral system. In Italy, machinery use contributed the highest greenhouse gas emissions in silvopastoral and organic production systems, while the large contribution to greenhouse gas emissions from fertilizer was recorded in the traditional and conventional production systems. In Denmark, the combined food and energy system had lower environmental impacts compared to the conventional wheat production system according to the three indicators. For both systems in Denmark, the main contribution to greenhouse gas emission was due to fertilizer and manure application. The study showed that integrated food and non-food systems are more environmentally friendly and less polluting compared to the conventional wheat production system in Denmark with use of chemical fertilizers and irrigation. The study can contribute to informed decision making by the land managers and policy makers for promotion of environmentally friendly food and non-food production practices, to meet the European Union targets of providing biomass-based materials and energy to contribute to the bio-based economy in Europe and beyond.

Environmental Benefits Analysis of Soil Testing and Formulated Fertilization Program in Linqing, China

2012 ◽  
Vol 518-523 ◽  
pp. 1145-1150
Author(s):  
Xun Feng Xia ◽  
Ming Xin Wang ◽  
Lin Yuan ◽  
Bei Dou Xi
Keyword(s):  
Life Cycle ◽  
Winter Wheat ◽  
Production System ◽  
Environmental Benefits ◽  
Soil Testing ◽  
Fertilization Program ◽  
Wheat Production ◽  
Reduction Potentials ◽  
Acidification Potential ◽  
Environmental Burdens

Life cycle analysis method was used to establish an inventory of a winter wheat production system that employed the Soil Testing and Formulated Fertilization Program in Linqing county, China, after which the net resource conservation and emission reduction benefits were calculated, evaluated and compared to the winter wheat production system in a conventional fertilization area. The results revealed a great reduction in resource consumption and emissions of the winter wheat production system in the program demonstration area. From 2006 to 2010, the life cycle reduction potentials of eutrophication, and acidification potential per ton of winter wheat accounted for 12.09-30.31% and 1.40-4.52% of the relevant environmental impact potential per capita worldwide in 2000, respectively. The Program significantly decreased the environmental burdens of the winter wheat production system, and farmer’s fertilization behavior tended to become rational.

scholarly journals QUARK MASSES AND MIXINGS IN E6×S3: A MONTE CARLO APPROACH

2007 ◽  
Vol 22 (16n17) ◽  
pp. 2921-2933 ◽  
Author(s):  
STEFANO MORISI
Keyword(s):  
Monte Carlo ◽  
Statistical Analysis ◽  
Analytical Study ◽  
Model Building ◽  
Flavor Symmetry ◽  
Cabibbo Angle ◽  
Quark Masses ◽  
Quark Sector ◽  
Fermion Masses ◽  
Free Parameters

Recently the authors of arXiv:hep-ph/0510321 propose a GUT model for fermion masses and mixings with spontaneously broken S3 discrete flavor symmetry, where S3 is the permutation group of three objects. The S3 breaking pattern in the quark sector is not studied and need further investigation. Since in such a model the number of free parameters is greater than the number of experimental observables, an analytical fit of all the parameters is impossible. To go forward with the model building and to deal with this problem we have used a statistical analysis. We have found that S3 is totally broken and the up-type quarks matrix is approximatively diagonal while down-type quarks matrix is not symmetric and it is parametrized by three couplings, gd, [Formula: see text] and [Formula: see text]. It has been found that [Formula: see text] is slightly smaller than gd = 1 and it is of order one, while [Formula: see text] where λ is the Cabibbo angle. An analytical study of the dependence of Vcb and Vub from the couplings [Formula: see text] and [Formula: see text] is also presented.

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