4 set. WILTON DE O. BUSSABPEDRO A. MORETTIN ESTATÍSTICA BÁSICA www. Pedro A. MorettinWilton de O. Bussab 6 a. View Homework Help – Estatística Básica – Morettin e Bussab from ESTATÍSTI at UFF. Estatistica Basica · Calculo · Analise de Series Temporais · Econometria Financeira · Introducao ao Calculo · Ondas e Ondaletas · Wavelets in Functional Data.
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Teodoro 1Larissa P. No base fertilization and coverage for any culture were used. Results and Discussion The calculation of central tendency, variability, asymmetry, kurtosis and Lilliefors basicca relatively to morphological variables fresh mass, dry mass and C.
In the Cerrado of Central Brazil is sown until the end of the rainy season, because of drought resistance and little sensitivity to photoperiod Calegari et al. Introduction The Cerrado occupation has occurred quickly, based on intensive production systems, which have increased the processes of soil degradation Silva et al. In this context, green manure becomes fundamental to the Cerrado region, because it promotes protection, improvement and maintenance of soil quality, as well as substantial increases in soil organic matter and nutrients, benefiting agroecosystems Carvalho et al.
Data were extrapolated to t ha -1and measures of central tendency, bussqb, asymmetry and kurtosis were calculated and normality of the variables under study was checked by Lilliefors test Campos, According to Teodoro et al.
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Sample size to estimate biomass and productivity of Canavalia ensiformis and Dolichos lablab. The spacing used was 0. Measures of central tendency, variability, asymmetry and kurtosis were calculated and normality of the variables under study was checked by the Lilliefors test. Forty five plants were randomly selected in the experimental area of each crop nasica determine fresh mass, dry mass and yield.
These processes ubssab in impacts that often generate the inefficiency of agricultural systems, with frequent need for interventions through conservation practices to maintain the productive potential of the soil. These results confirm the variability among the variables and among green manure species, corroborating the results obtained by Cargnelutti Filho et al.
Thus, the objective of this research was to determine the sample size to estimate biomass and productivity of C.
Among the various botanical families species that can be grown as green manures, stand out those of the Fabaceae family.
Canavalia ensiformi showed significant higher values for the bkssab fresh mass production, dry mass and productivity in relation to Dolichos lablabbeing recommended for cultivation in Brazilian Cerrado. Embrapa Cerrados, 28 p. However, according to the central limit theorem, even if the basic population is not normal, the distribution of the sample mean will be approximately normal for samples greater than 30 observations Fonseca and Martins, ; Bussab and Morettin, However, other factors must be analyzed for planning experiments with these green manures, such as seed germination, plant density, spacing to be used and type of bussab and weeding manual or mechanical.
The busaab size is directly proportional to the variability of the variables under study and to the desired confidence degree in estatistic estimate and inversely proportional to the estimation error allowed, initially established by the researcher Bar-betta et al. In this scenario, the present research aimed to determine the sample size for the estimation of biomass and productivity expected values of Canavalia ensiformis and Dolichos lablab. Densidades de semeadura de leguminosas na melhoria da qualidade do solo e na produtividade do milho.
Variables evaluated in C. Conclusions Canavalia ensiformi showed significant higher values for the mean fresh mass production, dry mass and productivity in relation to Dolichos lablabbeing recommended for cultivation in Brazilian Cerrado. Moreover, this is a crop that can be considered for family farms because of its high seed production and high prices in the market. Porto Alegre, Bookman, p.
BUSSAB E MORETTIN Estatística Básica 6a Edição ( 1)
It does not fit in this study the judgment of maximum estimation error acceptable, getting the use this information to the researcher for his experimental design.
The Cerrado occupation has occurred quickly, based on intensive production systems, which have increased the processes of soil degradation Silva et al. In agricultural systems in areas of Cerrado are used baaica with maize and perennial crops, because tolerates partial shade Carvalho and Amabile, Como citar este artigo.
Although the ewtatistica can produce reliable results in a given study, it is important to determine the sample size in order to estimate the average of each variable, with high confidence and a given estimation error. Green manure brings numerous benefits that promote essentially the maintenance and conservation of agro-systems, and its implementation is fundamental to Brazilian Cerrado region.
The legumes, in addition to providing similar benefits to other species, have the ability to accumulate N through biological fixation Silva et al. Tamanho da amostra para estimativa da biomassa e produtividade de Canavalia ensiformis e Dolichos lablab.
Among the desirable characteristics for selection of species for green manure, stands out mainly dry mass production, because it is related to the capacity to increase nutrient by symbiosis with microorganisms, soil cover and recycling of nutrients Chaves and Calegari,