|
|
|
| Registros recuperados: 65 | |
|
|
| Vahedi, Adel. |
| Beyond 66% of the world population are using Rice (Oryza sativa L.) as staple food which is considered one of the most popular cereals crop ranked after wheat and corn. Both mechanized and conventional methods are being applied in Iran to grow rice. This study performed an analysis of the energy consumed to produce rice in Mazandaran province, Iran, based on the following indices: energy efficiency, energy productivity, net energy gain, specific energy, direct and indirect energy, renewable and non-renewable energy. The cultivars of rice frequently cultivated in Iran comprise native and high yield cultivars. Face to face interviews and field survey were conducted to collect the initial data. Given the literature and benefiting from the data collected in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Energy; Efficiency; Productivity; Methods; Rice. |
| Ano: 2021 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6007 |
| |
|
|
| SILVA JÚNIOR,RENATO O. DA; SOUZA,EVERALDO B. DE; TAVARES,ALEXANDRA L.; MOTA,JOSÉ A.; FERREIRA,DOUGLAS B.S.; SOUZA-FILHO,PEDRO W.M.; ROCHA,EDSON J.P. DA. |
| ABSTRACT This study estimated the reference evapotranspiration rate (ETo) for the Itacaiúnas River Watershed (IRW), Eastern Amazonia, and measured the accuracy of eight empirical equations: Penman-Monteith (PM), Priestley-Taylor (PT), Hargreaves and Samani (HS), Camargo (CAM), Thornthwaite (TH), Hamon (HM), Kharrufa (KF) and Turc (TC) using monthly data from 1980 to 2013. In addition, it verifies the regional applicability to the IRW using a for the Marabá-PA station. The methods TC and PM (FAO56) presented the best results, which demonstrate that radiation and higher temperatures are the dominant drivers in the Evapotranspiration process, while relative humidity and wind speed have a much smaller impact. The temporal and spatial variability of ETo for IRW... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Calibration; Decades; Eastern Amazon; Evapotranspiration; Methods; Watershed. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000501985 |
| |
|
|
| Dinolfo,María I; Stenglein,Sebastián A. |
| Fusarium head blight is an important disease affecting cereal grains. Fusarium graminearum is the major causal agent of this disease around the world, but some researchers have documented the increased importance of F. poae. Moreover, F. poae presence may be accompanied of its mycotoxins production, being able to produce trichothecenes of type A diacetoxyscirpenol, monoacetoxyscirpenol, scirpentriol, HT-2 toxin, T-2 toxin and neosolaniol, as well as the type B nivalenol and fusarenone-X. Outside the trichotecenes group, F. poae has been reported to produce enniatins, beauvericin and moniliformin. Due to F. poae may be present in cereal grains used for food and processed products, the aims of this review is to recognize the importance of the hazard effects... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fusarium poae; Methods; Mycotoxins; Effects. |
| Ano: 2014 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722014000100001 |
| |
|
|
| CERQUEIRA,R.; FREITAS,S. R.. |
| The variables in habitat studies are usually transformed in such a way that they become abstractions and intuition is lost. We tested a new method for the analysis of habitat using data collected in a grid laid at the "restinga de Maricá", in Rio de Janeiro State, Brazil. Thirty-seven microhabitat variables were measured at each trap station. We assume that these variables characterize the microhabitat structure at the moment when measurements were taken. The data are transformed in 3 ways: (1) the averages of the measured variables were calculated, as usual in habitat studies; (2) the data are transformed in densities per area in square meters without reduction in the number of variables; and (3) we calculated the natural logarithms of the data thus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Discriminant analysis; Methods; Niche; Neotropics; Small mammals. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081999000200006 |
| |
|
|
| Melo,Illana Louise Pereira de; Almeida-Muradian,Ligia Bicudo de. |
| Bee pollen moisture value is one of the quality parameters for this product. Some countries such as Argentina, Brazil, Bulgaria, Poland and Switzerland have bee pollen regulations on quality parameters, but these are not clear regarding which method should be used for moisture determination. The aim of this paper was to compare six methods of moisture determination in dried bee pollen samples. The methods were: conventional oven at 100 °C, vacuum oven at 70 °C, desiccator with sulfuric acid, drying out process with infrared light at 85 °C, lyophilization and Karl Fisher's method. Based on the results, the best methods for moisture determination of bee pollen were the drying process with infrared and the lyophilization, since these have shown lower moisture... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bee pollen; Moisture; Methods. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612011000100029 |
| |
|
|
| Ortolani,Enrico Lippi. |
| Fifteen lambs were fed diet with normal (0.11%) or deficient levels of sodium ( 0.035%), respectively, for five weeks on each diet. At the end of each period saliva was collected by three different methods: swabbing with a 5 x 5 x 1.25cm synthetic sponge, aspiration with a 15cm long plastic tube connected to a 20ml syringe and sucking with a 4mm x 45cm long plastic tube through a water-jet aspirator pump or an eletric motor pump. The volume of saliva collected/min and the salivary sodium: potassium ratio were analysed. Larger volume of saliva was obtained with the developed sucking apparatus than with the sponge or the syringe. There was no influence of the method of saliva collection on the values of salivary Na:K ratio in both periods. Nevertheless, the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Saliva; Collection; Methods; Sheep; Salivary sodium: potassium ratio. |
| Ano: 1997 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84781997000200012 |
| |
|
|
| Yescas Diego, Salvador. |
| A nivel mundial, la utilización eficiente del agua en la producción agrícola sólo se puede lograr cuando se planifica el proyecto de riego, con un diseño que permita opera el recurso, con el fin de atender en cantidad y tiempo, las necesidades de agua de un cultivo, para un crecimiento óptimo y altos rendimientos. Lo que implica realizar un adecuado diseño del sistema de riego, donde en la actualidad existen varios software para el diseño de sistemas de riego, todos ellos siendo de gran aceptación por su versatilidad y facilidad de manejo y el poco tiempo que se emplea para realizar los diseños. Sin embargo todos y cada uno de ellos tienen su sustento en los procedimientos y métodos de cálculo manual que se han desarrollado a lo largo de la historia. El... |
|
Palavras-chave: Software; Eficiente; Métodos; Herramienta; Efficient; Research; Methods; Tools; Hidrociencias; Maestría. |
| Ano: 2013 |
URL: http://hdl.handle.net/10521/1893 |
| |
|
|
| Moon, Katie; Institute for Applied Ecology, University of Canberra; School of Business, University of New South Wales; katieamoon@gmail.com; Brewer, Tom D.; Northern Institute, Charles Darwin University, Darwin, Northern Territory, Australia; Australian Institute of Marine Science, Arafura Timor Research Facility, Brinkin, Northern Territory, Australia; tomdbrewer@gmail.com; Adams, Vanessa M.; University of Queensland, School of Biological Sciences, Brisbane, Queensland, Australia; v.adams@uq.edu.au; Blackman, Deborah A.; School of Business, University of New South Wales; d.blackman@adfa.edu.au. |
| A rise in qualitative social science manuscripts published in ecology and conservation journals speaks to the growing awareness of the importance of the human dimension in maintaining and improving Earth’s ecosystems. Given the rise in the quantity of qualitative social science research published in ecology and conservation journals, it is worthwhile quantifying the extent to which this research is meeting established criteria for research design, conduct, and interpretation. Through a comprehensive review of this literature, we aimed to gather and assess data on the nature and extent of information presented on research design published qualitative research articles, which could be used to judge research quality. Our review was based on 146... |
| Tipo: Peer-Reviewed Insight |
Palavras-chave: Case study; Confirmability; Credibility; Dependability; Methods; Transferability. |
| Ano: 2016 |
|
| |
|
|
| Pereira,José; Trindade,Henrique. |
| We conducted a study of the processes associated to NH3 emission in naturally ventilated dairy cattle facilities, having described factors that regulate NH3 emission, as well as methodologies for measuring these emissions at these facilities. Appropriate techniques to mitigate NH3 emission in facilities located in regions with warm climates were also identified. The most effective mitigation techniques with simple implementation include strategies associated to: (i) installation design and flooring, which lead to reduced emissions, (ii) excreta pre-excretion, namely the use of diets with optimized crude protein content and increased milk production at farm level; and (iii) excreta post-excretion, particularly by changing the conditions of environmental... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Facilities; Gases; Methods; Floors; Mitigation techniques. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000300022 |
| |
|
|
| Gotardo,Jackeline T.; Rodrigues,Lineu N.; Gomes,Benedito M.. |
| ABSTRACT This study aimed to compare methods for estimating reference evapotranspiration using an experimental basin in the Brazilian Cerrado, for water management purposes. For that, we estimated daily reference evapotranspiration over a certain period (time series between 1982 and 2012) through different empirical methods. These methods consisted of Blaney-Criddle (BC), Hargreaves & Samani (HS), ASCE Penman-Monteith (ASCE- PM), Penman (1948/1963) (PO), Priestley-Taylor (PT), which were all compared to the standard Penman-Monteith FAO-56 (PM-FAO56). Based on statistics, ASCE- PM, P and BC methods should be recommended for cerrado areas, either in rainy or dry seasons. After these, the PT also stood out. Among the less complex methods, based on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Evapotranspiration; Methods; Penman-Monteith FAO-56. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000601016 |
| |
|
| |
|
| |
| Registros recuperados: 65 | |
|
|
|
